7 Best Appetite Suppressant Pills to Control Hunger 2022

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Updated on - Written by
Medically reviewed by Kathy Shattler, MS, RDN

PhenQ Supplement

PhenQ

  • Free shipping globally
  • Best appetite supplement overall
  • Vegan-friendly

Up To 50% Off When Buying In Bulk

instant knockout

Instant Knockout

  • Decreases calorie absorption
  • Boosts vitality in working out
  • Decreases hunger

LeanBean

Leanbean

  • Made with natural ingredients
  • It boosts energy and focus
  • 90-day money-back guarantee

We are, in essence, what we eat. Unfortunately, most of the foods we consume daily do not aid in weight loss. People who want to start a weight loss journey on a high-carbohydrate, high-sugar diet are basically setting themselves up for failure.

No matter how much working out in the gym or following a diet helps, you’re in trouble if your appetite remains high.

You will consume more food and lose less body fat if your appetite is not suppressed. Even so, as you go to the gym, you’ll need to eat more to make up for the energy you’ve lost. And this isn’t the way to slim down.

Some people actually remain disciplined with diets and working out routines and get to lose weight. But studies[1] show that they regain all that back in just one year. This is because the body triggers the production of weight regulating hormones[2]. These hormones directly affect your appetite, body fat distribution, and metabolism rate. And this is where an effective appetite suppressant comes in to help.

This article reveals some of the most effective appetite suppressant supplements for burning fat and kick-starting your weight loss journey.

Best Appetite Suppressant Pills to Control Hunger on the market in (May. 2022)

Who Should Use Appetite Suppressants?

Obese people with a Body Mass Index (BMI) over 30 can benefit from the best appetite control that promotes weight loss. People with diabetes and those with high blood pressure and a BMI of 27 or higher should use the appetite suppressant supplements along with fat burners. These three groups of people are the most affected by diet, and they require dietary supplements to help them control hunger. These individuals must primarily control their blood sugar levels by curbing food cravings.

Another group of people who may use appetite suppressants is those trying to lose weight and want to keep track of their eating habits to keep the weight down.

Nonetheless, this means that both men and women in these groups may benefit from appetite suppressing supplements. Women have specific appetite suppressants, such as the best female fat burner.

How Do Appetite Suppressants Work?

Anorectics, another name for appetite suppressants, work intelligently[3] to trick your brain into thinking you are full.

They work in one of the following three ways:

  • One version of the weight loss supplements contains dietary fiber. These suppress your appetite by filling your stomach when you take them. And the result is you feel full; thus, you do not get cravings or feel like eating.
  •  The second-way many natural appetite suppressant supplements work is by targeting the adrenal gland. There is a block between message transmission from the gland to the brain to signal hunger when this happens. In turn, your food intake is restricted to only the set meal times.
  • Thirdly, some appetite suppressants work by increasing serotonin levels in the body. This feel-good hormone then tricks the body into thinking that it is full and it does not need to consume any food at that particular time.

The Line Up At A Glance

PhenQ Supplement

Editor’s Choice

PhenQ

  • Free shipping globally
  • Best appetite supplement overall
  • Vegan-friendly

Up To 50% Off When Buying In Bulk

instant knockout

Best Appetite Suppressant for Men

Instant Knockout

  • Decreases calorie absorption
  • Boosts vitality in working out
  • Decreases hunger

LeanBean

Best Fat-burner for Women

Leanbean

  • Made with natural ingredients
  • It boosts energy and focus
  • 90-day money-back guarantee

PhenGold

Best No Side Effects

PhenGold

  • All natural formulas
  • Fast and reliable shipping
  • Boosts metabolism

Up to 55% Off When Buying in Bulk

PrimeShred

Best Fat-burner for Men

PrimeShred

  • Curbs appetite
  • Promotes better sleep
  • Boosts metabolism

Trimtone

Best to Reduce Fat

Trimtone

  • Easy shipping worldwide
  • All-natural formula
  • Popular amongst women

Powher Cut

Best Appetite Suppressant for Women

Powher

  • Helps boost muscle growth
  • Helps with focus and concentration
  • Contains extra beneficial ingredients

7 Best Appetite Suppressant Pills to Control Hunger

 PhenQ

PhenQ Supplement

Up To 50% Off When Buying In Bulk

See PhenQ Reviews

PhenQ appetite suppressant food supplement is a five-in-one formula that is thermogenic, organic, and herbal. So much so, it is one of the best herbal appetite suppressants in the market with numerous benefits we look at next.

  • It’s a five-in-one recipe
  • It’s simple to place an order directly online
  • Pharmaceuticals and synthetics are not used.
  • May help you lose weight
  • Only a few countries have access to it.
  • When compared to other brands, it is a little pricey.

The list of ingredients that make this fantastic blend are:

Capsimax powder

This PhenQ appetite suppressant supplement component is a potent fat percentage reducer[4]. It is also a great ingredient that modulates your metabolic rate[5] and food intake.

Chromium picolinate

Chromium picolinate also aids in appetite suppression by delivering essential sugar to your cells. This component is particularly effective[6] at reducing sugar and starch cravings.

Caffeine

Caffeine is a stimulant that helps you concentrate and rejuvenates the body. This is beneficial when using the supplement in conjunction with a fitness routine. Caffeine’s stimulating impacts[7] also aid in appetite suppression. You will experience fewer hunger pangs.

Nopal

The inclusion of Nopal extract[8] increases the supplement’s fiber content. Fiber is reported to help in the reduction of hunger and the suppression of an individual’s appetite. It can also help you lose the weight gained due to fluid retention more quickly.

L-Carnitine fumarate

L-carnitine is known primarily as a fat burner, body weight, and fat mass reducer[9], but there is conflicting evidence. It is unlikely that it will result in significant weight loss. On the other hand, studies back up its use for well-being, cognitive function, and preventative medicine.

Weight loss pills with this component may also help those who need to lower sugar levels, such as those with diabetes or pre-diabetes.

Instant Knockout

Instant Knockout is supposedly the best appetite suppressant for men. And this is not because of its formulation, but because John Dodson III and Diego Sanchez, mixed martial arts fighters, gave testimonials that this product helped them lose weight.

  • Appetite-suppressant that works well
  • A large number of potent ingredients
  • The dosage is adequate   
  • You get a free bottle when you purchase three
  • It is expensive.
  • Caffeine content is extremely high. 
  • It is not suitable for vegetarians

Although it is known for combat sports, Instant Knockout is also popular in strength exercises like power and weightlifting. This dietary supplement is an appetite suppressor, metabolic booster, energy booster, and it increases fat oxidation.

Not forgetting it decreases the absorption of calories. And all these are thanks to the ingredients included in this appetite suppressant. These ingredients are:

Green coffee bean extract

This ingredient[10] can reduce calorie absorption by one to two hundred calories.

Cayenne powder

Cayenne pepper has been associated with increased fatty acid oxidation and thermogenesis, and studies suggest it can help you feel full[11] when you consume it.

Glucomannan

According to a study[12] published in the International Journal of Obesity, obese people who took two doses of 500 milligrams of Glucomannan per day lost more weight than a control group despite making no other dietary changes. Instant Knockout contains nearly two grams of it, so from this finding, it will help you feel full.

Caffeine anhydrous

Increased fat metabolism and thermogenesis have been linked to caffeine. It may increase adrenaline[13] from the adrenal gland which aids in fat breakdown.

Green tea leaf extract

Green tea has elements that are powerful antioxidants helping the body to fight off oxidative stress. It especially helps you lose weight around your belly[14].

Black pepper extract

It’s also supposed to aid in nutrient absorption[15] and be linked to increased fat oxidation.

The above are the main ingredients inside this appetite suppressant; the others are:

Leanbean

Leanbean contains a total of 11 all-natural ingredients. They are one of the best appetite suppressant pills because they collectively work to make you feel fuller. This way, you can control hunger better.

  • Reduces your cravings and food intake
  • FDA-approved facility
  • 90-day money-back guarantee
  • The accessible customer service team
  • Free shipping if you purchase the complete bundle
  • Third-party test results are available online
  • 100% organic ingredients
  • Shipping to limited countries  
  • The money-back-guarantee only applies to the complete bundle.

Leanbean pills form a gel-like viscous substance once it gets to the stomach, thanks to the ingredient glucomannan. This fullness helps you keep your calorie intake in check. And the effect seen is a reduction in your waist circumference due to the loss of belly fat.

This appetite suppressant also purports to significantly boost your metabolism thanks to thermogenesis[19] triggered mainly by Choline.  Besides that, they promise to offer you energy-filled workouts, countering any fatigue.

As the brand puts it, this blend of natural ingredients has been designed to help females mostly. They have studied female cravings and formulated the appetite suppressant based on them.

Here is a list of the natural ingredients they use:

Glucomannan

Glucomannan[20] is a fermentable, water-soluble dietary fiber derived from the elephant yam tuber or root known as konjac. It goes to the stomach, absorbing moisture and transforming into a viscous gel when eaten. This gel fills your stomach, making you feel fuller and reducing your desire to eat, making it an effective appetite suppressant in the formula.

Choline

This ingredient is usually produced by the liver naturally, which aids in thermogenesis. Supplementation aids in a boost in lipid metabolism and homocysteine metabolism[21].

Homocysteine (Hcy) is a sulfur-containing amino acid that is formed when methionine (Met) is converted to cysteine (Cys). Hyperhomocysteinemia (HHcy), or high levels of Hcy in the blood, is widely implicated in the development of cardiac, cerebral, and peripheral atherosclerosis. Atherosclerosis is characterized by a plaque buildup in the blood vessels that impede the flow of blood and put more work on the heart.

B vitamins

The B vitamins available in this appetite suppressant are B6 and B12. This duo helps to boost metabolism and fight fatigue.

Chromium picolinate

This ingredient aids in the regulation of blood glucose[22] content.

Chloride

Chloride combines with other elements like potassium to help the stomach produce vital acids to promote a healthy digestive system. It acts as an electrolyte since it is electronically charged. A healthy digestive system does not store the excess fats or proteins that could otherwise mean weight gain.

Zinc

The zinc in this appetite suppressant is instrumental in helping curb any pain and inflammation resulting from working out. It promotes lipid and carbohydrate metabolism and converts proteins to lean muscles.

Taking Zinc combined with a low-calorie eating plan has been shown to reduce anthropometric metrics, inflammatory cytokines, glucose intolerance, and appetite in obese people, suggesting that it could be beneficial in managing obesity. This means it improves bodyweight management[23].

Turmeric

Turmeric’s most instrumental component is curcumin[24] which is also helpful in offsetting any inflammatory responses. Besides that, it is also another potent thermogenic spice aiding in fat burning in the body.

Piperine

This substance is what gives black pepper its unique aroma. This ingredient is also thermogenic, and it helps the body absorb other nutrients better. Piperine[25] helps in digestion and metabolic efficiency, resulting in less fat accumulation in our bodies.

Garcinia Cambogia

This organic ingredient contains hydroxycitric acid[26]. HCA, or hydroxycitric acid, appears to inhibit citrate lyase, an enzyme that your body needs to make fat. It also increases serotonin levels in the brain, which may cause you to feel less ravenous.

Green Coffee

Green coffee contains chlorogenic acid, a great antioxidant reducing any oxidative stress in the body.

Acai Berry

The Acai berry[27] is also an antioxidant plus a fat profile modulator. Its effectiveness as a weight loss-promoting ingredient further scientific study.

TrimTone

Trimtone is made entirely of organic substances. As a result, it is a better option for those allergic to certain foods. Chemical additives are also not present, which is an excellent feature of the appetite suppressant product

  • Made entirely of organic components
  • No chemical elements
  • May lower blood sugar levels
  • Simple to consume
  • Money-back guarantee
  • Shipping procedure is simple and quick
  • Worldwide shipping
  • It is expensive.
  • Not recommended for expectant and lactating women, vegans, and vegetarians

Trimtone appetite suppressants contain ingredients that help the body’s natural metabolic activity. A faster fat-burning process and increased energy levels result from a faster metabolism. This means you might not only lose weight, but you might also feel more active and energized.

Here are the ingredients that facilitate this:

Grains of Paradise

The plant Grains of Paradise[28] is closely linked to ginger. The seeds are used as a seasoning as well as for medicinal purposes. Substances present in grains of paradise seeds appear to reduce swelling, destroy bacteria, and aid in burning body fat.

Green Tea

Green tea is loaded with antioxidants, caffeine, and one special flavonoid called catechin. These compounds have been shown to speed up the metabolism in several studies[29].

Catechins can aid in the breakdown of excess fat, and both catechin and caffeine can cause the body to use more energy. Another review[30] done in 2010 attest that the elements found in green tea also help one keep their weight in check. It was a small but positive effect.

Caffeine

Caffeine is one of the widely known stimulants. Thus, it helps boost energy levels when it comes to appetite suppressants.

Caffeine has also been shown to reduce appetite, defer emptying of the stomach, and impact appetite hormones, which can aid in weight loss. Caffeine has also been shown to aid weight loss by increasing fat and calorie burn[31].

Glucomannan

The soluble dietary fiber glucomannan appears to be the most effective weight loss agent. It suppresses the appetite[32] as well as the amount of food consumed. Glucomannan can also absorb water[33] and form a thick gel, thus decreasing the appetite and lowering blood sugar. Those on diabetic medications should monitor their blood sugar to assure it does not go too low. 

Glucomannan bulking property aids in boosting feelings of fullness and delaying stomach emptying; as a result, it can help you eat less[34] and lose weight.

Green Coffee

The antioxidant chlorogenic acid[35] in green coffee aids weight reduction, helps lower blood pressure and maintains optimum blood glucose levels. It significantly reduces belly fat.

Powher Cut

Ultimate Life is the company behind this big brand specializing in this product as the best appetite suppressant for women. They are also the company behind Leanbean that we looked at above.

  • Straightforward formula that lists all of the ingredients used
  • Aids loss of weight when used in conjunction with a low-calorie diet
  • Allows the body to perform essential processes  
  • A bit expensive
  • You have to take six capsules each day
  • The formula lacks B vitamins which are vital in weight loss

Powher appetite suppressant pills are exclusively sold via the main brand’s website. They offer their clients free shipping when you buy two plus items via the website. They also offer a 90-day money-back guarantee.

The brand prides itself on producing its formula in FDA-registered facilities that only use healthy and sustainable practices to make this appetite suppressant supplement.

All in all, here are the ingredients found in the Powher appetite suppressant for women:

Glucomannan

The primary ingredient in the Powher appetite suppressant is Glucomannan[36]. It’s also identified as Konjac Root Extract, and it’s a dietary fiber derived from the Konjac plant’s root.

Glucomannan helps you lose weight in the context of an energy-restricted diet. It is effective once it is included in a formula with at least 3g per day, divided into three independent 1g dosages, as it is in this appetite suppressant.

Choline

Choline[37] comes in a 90 mg daily dose in the Powher Cut formula. Choline is an important nutrient that adds to normal fat metabolism. This lipid metabolism is vital in the production of energy from the breakdown of fats to energy.

Caffeine

Caffeine is a stimulant. And the one used in this  Powher Cut appetite suppressant is the coffee arabica extract that consists of 100 mg per daily serving. Each capsule of this effective appetite suppressant contains around 16.6 mg of caffeine. 

To put that quantity in perspective, a typical cup of coffee contains about 100 milligrams of caffeine. This is a potent booster in your energy levels, keeping you grounded and motivated in your journey to lose weight.

Magnesium

Another active ingredient we need to get from our daily healthy diet is magnesium, an essential mineral that plays a critical role in a handful of biological functions.

Magnesium boosts standard energy release, decreases stress and exhaustion. This enhanced your working-out performance[38] tenfold. When it comes to appetite control, magnesium acts as a power supply converting food into energy[39] and coordinating cell respiration with the help of ATP. This process may assist you in burning more calories during endurance workouts, resulting in fat loss.

Selenium

This is yet another essential mineral that we must obtain through our healthy diet. Your body uses this nutrient to keep your thyroid functioning properly[40]. The thyroid gland regulates the hormones in your body.

Selenium also tends to help safeguard your body from oxidative stress by playing an important role in metabolism. Furthermore, selenium may aid in enhancing your immune system[41], preventing age-related mental decline[42], and even reducing your risk of cardiovascular disease[43].

Chromium Picolinate

Chromium is a trace element that we must obtain through our dietary habits. It aids in the normal metabolic processes of macronutrients and the maintenance of healthy blood sugar levels. In one 8-week research[44] study, chromium picolinate at 1,000 mg/day reduced food intake, appetite, and hunger pangs in healthy overweight women.

It is the best appetite suppressant for women who want to control their appetite to stay slim and fit.

PhenGold

PhenGold

Up to 55% Off When Buying in Bulk

See PhenGold Reviews

As the best over-the-counter appetite suppressant product, Phengold formula contains a long list of vitamins, herbs, and amino acids with each one having commendable benefits. That collective benefit is what makes it deserving as one of the seven best appetite suppressants we choose to feature on this list.

  • All-natural formula.
  • No reported side effects.
  • Very affordable with discounted prices
  • It boosts the user’s metabolism
  • Effective in weight loss and fat burning.
  • Helps with improving cognitive functions like focus and memory.
  • No prescription needed
  • Shipping is fast and reliable
  • Money-back- guarantee.
  • It is only available in Europe, the US, and the UK.

The formula is all-natural, and here is a complete list of what is included in the recipe to suppress appetite and facilitate weight loss:

Green tea

Green tea is jam-packed with catechins[45] and caffeine, and both are natural fat burners. These two are, however, more effective when you exercise. This substance explicitly helps lower their BMI[46], waist circumference, and belly fat reduction.

Rhodiola rosea

This substance helps with appetite suppression, natural fat burning, and fighting off fatigue[47]. This energy-boosting nature helps one stay motivated to stick to a healthy diet, thus curbing cravings while burning that excess fat. It enables you to remain in line with your weight loss journey.

L-theanine

This is a very potent ingredient that boosts metabolism and prevents weight gain. It is naturally found in fungus and plants like mushrooms and green tea leaves. It also helps curb mental distress[48] like anxiety and stress.

B Vitamins

PhenGold appetite suppressant contains Vitamins B3, B6, and B12. These three B vitamins[49] help keep your metabolic rate at an optimized rate. B3 is essentially helpful in curbing inflammation which is fundamental in speeding up the healing process after workouts.

B6 is a potent protein, carbohydrate, and fat metabolizer. It helps in sustaining a healthy weight loss process. And lastly, B12 aids in boosting energy[50] within your cells to combat tiredness.

Green coffee

Green coffee is a herbal appetite suppressant that decreases the number of fat reserves. It contains a substance called chlorogenic acid[51] that significantly reduces the amount of glucose and fat in the body. It is ideal as it helps prevent weight gain since the body is not storing any excess fat.

Cayenne pepper

This is an effective calorie burner since it naturally triggers a process called thermogenesis[52] in the body. The body naturally produces heat which then burns all that excess fat naturally.

L-tyrosine

L-tyrosine may help in boosting energy levels and concentration in the body. The mechanism it uses is working in the brain in improving cognitive functions[53]. So much so that you stay focused and motivated throughout your weight loss journey.

PrimeShred

PrimeShred is a highly potent appetite suppressant that speeds up weight loss by targeting the entire body’s fat reserves. It works through thermogenesis, where the body produces heat to burn the fat. It also targets the fat hormones to keep the body from weight gain.

  • Help utilize fat reserves to lose weight healthfully
  • It curbs your appetite and boosts metabolism
  • Better sleep
  • Optimizes the body’s natural functions
  • Naturally-grown,soy-free, gluten-free, and non-GMO ingredients
  • 100-day money-back guarantee on unopened packages
  • 100% vegan
  • Third-party tested product
  • It is selective on the countries they ship to
  • Pregnant and lactating mums cannot use this product

The fat hormones that PrimeShred targets instruct the fat cells to release the fats straight into the bloodstream, where they are broken down through thermogenesis. This sends a stream of energy running through your body, fighting off any feelings of fatigue.

Here are some of the commendable ingredients in this natural appetite suppressant:

Green tea extracts

Green tea extract has been shown in numerous studies to help with weight loss[54], blood sugar regulation[55], preventing disease[56], and workout regeneration[57]. It can also aid in maintaining healthy skin[58] and the reduction of blood fat percentage[59], blood pressure regulation[60], and cognitive performance[61]

L-tyrosine

This amino acid works as a natural appetite suppressant. It aids in producing thyroid hormone[62], which modulates metabolic activity and fat burning. It is critical to converting calories into energy. Unburned calories constitute the fat in your body.

It is also a potent element that reduces neurotransmitters’ depletion rate, optimizing your memory[63] and concentration.

L-theanine

This substance gives this a flavorful taste and texture recognized as umami. Umami flavors have been shown to reduce appetite, which can help with weight loss. So much so, it aids in weight loss[64] and enables you to avoid any weight gain.

The other significant ingredients in the PrimeShred appetite control are:

 Rhodiola Rosea root.

Benefits of Appetite Suppressant

Due to the various ingredients available in the best appetite suppressant and fat burners, here are some of the celebrated benefits:

  • Curbed food cravings thus reduced food intake
  • Weight loss
  • Prevention of weight gain
  • Boost in metabolism
  • Boost in energy
  • Enhanced focus, concentration, and connectivity in general
  • Better immunity
  • Better digestive health
  • Less pain and inflammation
  • Faster healing

How To Choose Appetite Suppressant Pills Over The Counter

Deciding on an appetite suppressant is a big decision that first and foremost needs medical advice. This means that before you decide to go with the best appetite suppressant over the counter, ensure that a doctor has assessed your health and given you the go-ahead.

More pointers that can help you select the best appetite suppressant pills over the counter are:

The Brand’s Reputation

The first thing you need to look at is what people are saying about the brand. When it comes to selecting diet pills, the company’s reputation is critical. It shows their reliability, transparency, and effectiveness.

And the best way to get all this information on an appetite suppressant brand is through the internet by reading such a product review, social media, and reviews left behind by past clients.

The Diet Pills Testing

This mainly refers to in-house and third-party testing of the appetite suppressant’s purity and quality. When a brand is open about these two kinds of testing, they are willing to take accountability for their product.

The testing will also confirm the quantities of the ingredients in the product and assure that no contamination has taken place.

The Type of Ingredients

Suppose the appetite supplement is fully organic or has synthetic fillers. Ideally, it would help if you went for the best appetite suppressants that are organic since they have minimal side effects. Even so, when you look through the list of ingredients, stay clear from any appetite suppressant products that contain any substance you are allergic to.

This also applies to the facilities they are made of; some are packaged in locations that also create other significant allergens like nuts and dairy, so read the label carefully.

Other things you can consider are your dieting habits like vegan or vegetarian. Your current health state is also a pointer you can use. For instance, if you have diabetes, ask your doctor for the best use.

Your lifestyle is also another factor. Some weight loss diet pills may work alone, while others require you to have a fitness routine for them to work. So take note of this as well before purchasing the best appetite suppressant over the counter. Lastly, ensure that the source of the suppressant is legitimate.

Precautions

One of the most important considerations when looking for the best appetite suppressant pills is your overall health. This means that one of the most important precautions is to seek medical advice, particularly if you are taking any other medications. When it comes to drug interactions, be cautious in this case.

The second point to remember is always to follow the dosage instructions on the package. Half the dose may not provide the desired results, and taking too much may result in side effects such as stomach upsets or digestive tract discomforts.

Finally, do not take appetite suppressant diet pills if you are unsure about their source. Many con artists sell millions of counterfeit appetite suppressant pills that may harm your health. To avoid this, buy the supplement from the company’s official website or a verified seller.

Final Thought

When it comes to finding the best appetite suppressant supplements, you now have seven options to consider. Each of the brands we’ve discussed has numerous advantages, including appetite suppression, weight loss, fat burning, boosted metabolism, improved brain health, and overall well-being.

Even though they are excellent appetite suppressants, you should conduct some preliminary research to ensure that they are the best for you. And a visit to your doctor for an evaluation should be the first stop. Nonetheless, stick to the dosage and make sure you get the genuine product to avoid any adverse side effects.

With that, we hope that one of these seven appetite suppressant products helps you achieve your ideal body and optimal health.

Frequently Asked Questions

What types of appetite suppressants are there?

Appetite suppressants are available in both prescription and over-the-counter (OTC) forms. Before taking over-the-counter diet pills, consult your doctor.

What vitamins will help me lose weight?

The B vitamins (especially B1, B2, B3, B5, and B6) can suppress appetite. B vitamins are found in foods, including milk, green/leafy vegetables, beans, legumes, and seeds.

What are the three dangers of taking diet pills?

Pills that boost metabolism and suppress appetite are dangerous because they can cause high blood pressure, a rapid heart rate, and lung and heart problems.

What are the effects of appetite suppressants on the body

They affect the brain’s desire to eat. Diet pills can help you feel fuller faster with less food by controlling hunger pangs. As a result, you consume fewer calories and shed pounds.


+ 68 sources

Health Canal avoids using tertiary references. We have strict sourcing guidelines and rely on peer-reviewed studies, academic researches from medical associations and institutions. To ensure the accuracy of articles in Health Canal, you can read more about the editorial process here

  1. Blomain, E.S., Dirhan, D.A., Valentino, M.A., Kim, G.W. and Waldman, S.A. (2013). Mechanisms of Weight Regain following Weight Loss. ISRN Obesity, [online] 2013, pp.1–7. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3901982/ [Accessed 11 Dec. 2021].
  2. ‌Vic.gov.au. (2016). Obesity and hormones – Better Health Channel. [online] Available at: https://www.betterhealth.vic.gov.au/health/healthyliving/obesity-and-hormones [Accessed 11 Dec. 2021].
  3. ‌Taseen Gul, Henah Mehraj Balkhi and Ehtishamul Haq (2014). Appetite Suppressants for The Treatment of Obesity: Advances And Challenges. [online] ResearchGate. Available at: https://www.researchgate.net/publication/264673570_Appetite_Suppressants_for_The_Treatment_of_Obesity_Advances_And_Challenges [Accessed 11 Dec. 2021].
  4. ‌Rogers, J., Urbina, S.L., Taylor, L.W., Wilborn, C.D., Purpura, M., Jäger, R. and Juturu, V. (2018). Capsaicinoids supplementation decreases percent body fat and fat mass: adjustment using covariates in a post hoc analysis. BMC Obesity, [online] 5(1). Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6088424/ [Accessed 11 Dec. 2021].
  5. ‌Clinicaltrials.gov. (2018). Capsimax Effect on Metabolic Rate, Satiety and Food Intake – Full Text View – ClinicalTrials.gov. [online] Available at: https://clinicaltrials.gov/ct2/show/NCT03489226 [Accessed 11 Dec. 2021].
  6. ‌Tian, H., Guo, X., Wang, X., He, Z., Sun, R., Ge, S. and Zhang, Z. (2013). Chromium picolinate supplementation for overweight or obese adults. Cochrane Database of Systematic Reviews. [online] Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7433292/ [Accessed 11 Dec. 2021].
  7. ‌Tabrizi, R., Saneei, P., Lankarani, K.B., Akbari, M., Kolahdooz, F., Esmaillzadeh, A., Nadi-Ravandi, S., Mazoochi, M. and Asemi, Z. (2018). The effects of caffeine intake on weight loss: a systematic review and dos-response meta-analysis of randomized controlled trials. Critical Reviews in Food Science and Nutrition, [online] 59(16), pp.2688–2696. Available at: https://pubmed.ncbi.nlm.nih.gov/30335479/ [Accessed 11 Dec. 2021].
  8. ‌Uebelhack, R., Busch, R., Alt, F., Beah, Z.-M. and Chong, P.-W. (2014). Effects of Cactus Fiber on the Excretion of Dietary Fat in Healthy Subjects: A Double Blind, Randomized, Placebo-Controlled, Crossover Clinical Investigation. Current Therapeutic Research, [online] 76, pp.39–44. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4109417/ [Accessed 11 Dec. 2021].
  9. ‌Talenezhad, N., Mohammadi, M., Ramezani-Jolfaie, N., Mozaffari-Khosravi, H. and Salehi-Abargouei, A. (2020). Effects of l-carnitine supplementation on weight loss and body composition: A systematic review and meta-analysis of 37 randomized controlled clinical trials with dose-response analysis. Clinical Nutrition ESPEN, [online] 37, pp.9–23. Available at: https://pubmed.ncbi.nlm.nih.gov/32359762/ [Accessed 11 Dec. 2021].
  10. ‌Thom, E. (2007). The Effect of Chlorogenic Acid Enriched Coffee on Glucose Absorption in Healthy Volunteers and Its Effect on Body Mass When Used Long-term in Overweight and Obese People. Journal of International Medical Research, [online] 35(6), pp.900–908. Available at: https://pubmed.ncbi.nlm.nih.gov/18035001/ [Accessed 11 Dec. 2021].
  11. ‌Janssens, P.L.H.R., Hursel, R. and Westerterp-Plantenga, M.S. (2014). Capsaicin increases sensation of fullness in energy balance, and decreases desire to eat after dinner in negative energy balance☆. Appetite, [online] 77, pp.46–51. Available at: https://pubmed.ncbi.nlm.nih.gov/24630935/ [Accessed 11 Dec. 2021].
  12. ‌Walsh DE;Yaghoubian V;Behforooz A (2017). Effect of glucomannan on obese patients: a clinical study. International journal of obesity, [online] 8(4). Available at: https://pubmed.ncbi.nlm.nih.gov/6096282/ [Accessed 11 Dec. 2021].
  13. ‌Brown.edu. (2021). What are the effects of caffeine? | Health Promotion | Brown University. [online] Available at: https://www.brown.edu/campus-life/health/services/promotion/content/what-are-effects-caffeine [Accessed 11 Dec. 2021].
  14. ‌Maki, K.C., Reeves, M.S., Farmer, M., Yasunaga, K., Matsuo, N., Katsuragi, Y., Komikado, M., Tokimitsu, I., Wilder, D., Jones, F., Blumberg, J.B. and Cartwright, Y. (2008). Green Tea Catechin Consumption Enhances Exercise-Induced Abdominal Fat Loss in Overweight and Obese Adults. The Journal of Nutrition, [online] 139(2), pp.264–270. Available at: https://pubmed.ncbi.nlm.nih.gov/19074207/ [Accessed 11 Dec. 2021].
  15. ‌Clinicaltrials.gov. (2018). Effects of Black Pepper on the Absorption of Nutrients in Vegetables – Full Text View – ClinicalTrials.gov. [online] Available at: https://clinicaltrials.gov/ct2/show/NCT03490955 [Accessed 11 Dec. 2021].
  16. ‌HUNG, S.-C., ANDERSON, W.H.K., ALBERS, D.R., LANGHORST, M.L. and YOUNG, S.A. (2011). Effect of hydroxypropyl methylcellulose on obesity and glucose metabolism in a diet-induced obesity mouse model. Journal of Diabetes, [online] 3(2), pp.158–167. Available at: https://pubmed.ncbi.nlm.nih.gov/21599870/#:~:text=Conclusion%3A%20The%20data%20indicate%20that,resulting%20from%20reduced%20fat%20absorption. [Accessed 11 Dec. 2021].
  17. ‌Younes, M., Aggett, P., Aguilar, F., Crebelli, R., Dusemund, B., Filipič, M., Frutos, M.J., Galtier, P., Gott, D., Gundert‐Remy, U., Kuhnle, G.G., Leblanc, J., Lillegaard, I.T., Moldeus, P., Mortensen, A., Oskarsson, A., Stankovic, I., Waalkens‐Berendsen, I., Woutersen, R.A. and Wright, M. (2018). Re‐evaluation of silicon dioxide (E 551) as a food additive. EFSA Journal, [online] 16(1). Available at: https://efsa.onlinelibrary.wiley.com/doi/10.2903/j.efsa.2018.5088 [Accessed 11 Dec. 2021].
  18. ‌Hobbs, C.A., Saigo, K., Koyanagi, M. and Hayashi, S. (2017). Magnesium stearate, a widely-used food additive, exhibits a lack of in vitro and in vivo genotoxic potential. Toxicology Reports, [online] 4, pp.554–559. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5655391/ [Accessed 11 Dec. 2021].
  19. ‌Müller, M.J. and Bosy-Westphal, A. (2013). Adaptive thermogenesis with weight loss in humans. Obesity, [online] 21(2), pp.218–228. Available at: https://pubmed.ncbi.nlm.nih.gov/23404923/ [Accessed 11 Dec. 2021].
  20. ‌Clinicaltrials.gov. (2012). The Effects of Glucomannan on Weight Loss – Full Text View – ClinicalTrials.gov. [online] Available at: https://clinicaltrials.gov/ct2/show/NCT01709955 [Accessed 11 Dec. 2021].
  21. ‌Kumar, A., Palfrey, H.A., Pathak, R., Kadowitz, P.J., Gettys, T.W. and Murthy, S.N. (2017). The metabolism and significance of homocysteine in nutrition and health. Nutrition & Metabolism, [online] 14(1). Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5741875/ [Accessed 11 Dec. 2021].
  22. ‌Martin, J., Wang, Z.Q., Zhang, X.H., Wachtel, D., Volaufova, J., Matthews, D.E. and Cefalu, W.T. (2006). Chromium Picolinate Supplementation Attenuates Body Weight Gain and Increases Insulin Sensitivity in Subjects With Type 2 Diabetes. Diabetes Care, [online] 29(8), pp.1826–1832. Available at: https://care.diabetesjournals.org/content/29/8/1826 [Accessed 11 Dec. 2021].
  23. ‌Khorsandi, H., Nikpayam, O., Yousefi, R., Parandoosh, M., Hosseinzadeh, N., Saidpour, A. and Ghorbani, A. (2019). Zinc supplementation improves body weight management, inflammatory biomarkers and insulin resistance in individuals with obesity: a randomized, placebo-controlled, double-blind trial. Diabetology & Metabolic Syndrome, [online] 11(1). Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6889702/#:~:text=This%20study%20indicates%20that%20Zn,in%20the%20treatment%20of%20obesity. [Accessed 11 Dec. 2021].
  24. ‌Akbari, M., Lankarani, K.B., Tabrizi, R., Ghayour-Mobarhan, M., Peymani, P., Ferns, G., Ghaderi, A. and Asemi, Z. (2019). The Effects of Curcumin on Weight Loss Among Patients With Metabolic Syndrome and Related Disorders: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Frontiers in Pharmacology, [online] 10. Available at: https://www.frontiersin.org/articles/10.3389/fphar.2019.00649/full [Accessed 11 Dec. 2021].
  25. ‌Shah, S., Shah, G., Singh, S., Gohil, P., Chauhan, K., Shah, K. and Chorawala, M. (2011). Effect of piperine in the regulation of obesity-induced dyslipidemia in high-fat diet rats. Indian Journal of Pharmacology, [online] 43(3), p.296. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3113382/#:~:text=Piperine%2Dtreated%20group%20showed%20significant,weight%20reduction%20%5BFigure%201%5D. [Accessed 11 Dec. 2021].
  26. ‌Onakpoya, I., Hung, S.K., Perry, R., Wider, B. and Ernst, E. (2011). The Use ofGarciniaExtract (Hydroxycitric Acid) as a Weight loss Supplement: A Systematic Review and Meta-Analysis of Randomised Clinical Trials. Journal of Obesity, [online] 2011, pp.1–9. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3010674/ [Accessed 11 Dec. 2021].
  27. ‌NCCIH. (2019). Acai. [online] Available at: https://www.nccih.nih.gov/health/acai#:~:text=There%27s%20no%20definitive%20scientific%20evidence,alone%20promotes%20rapid%20weight%20loss. [Accessed 11 Dec. 2021].
  28. ‌Sugita, J., Yoneshiro, T., Hatano, T., Aita, S., Ikemoto, T., Uchiwa, H., Iwanaga, T., Kameya, T., Kawai, Y. and Saito, M. (2013). Grains of paradise (Aframomum melegueta) extract activates brown adipose tissue and increases whole-body energy expenditure in men. British Journal of Nutrition, [online] 110(4), pp.733–738. Available at: https://pubmed.ncbi.nlm.nih.gov/23308394/ [Accessed 11 Dec. 2021].
  29. ‌Westerterp-Plantenga, M.S. (2010). Green tea catechins, caffeine and body-weight regulation. Physiology & Behavior, [online] 100(1), pp.42–46. Available at: https://pubmed.ncbi.nlm.nih.gov/20156466/ [Accessed 11 Dec. 2021].
  30. ‌Hursel, R., Viechtbauer, W. and Westerterp-Plantenga, M.S. (2009). The effects of green tea on weight loss and weight maintenance: a meta-analysis. International Journal of Obesity, [online] 33(9), pp.956–961. Available at: https://www.nature.com/articles/ijo2009135 [Accessed 11 Dec. 2021].
  31. ‌Greenberg, J.A., Boozer, C.N. and Geliebter, A. (2006). Coffee, diabetes, and weight control. The American Journal of Clinical Nutrition, [online] 84(4), pp.682–693. Available at: https://pubmed.ncbi.nlm.nih.gov/17023692/ [Accessed 11 Dec. 2021].
  32. ‌Thompson, S.V., Hannon, B.A., An, R. and Holscher, H.D. (2017). Effects of isolated soluble fiber supplementation on body weight, glycemia, and insulinemia in adults with overweight and obesity: a systematic review and meta-analysis of randomized controlled trials. The American Journal of Clinical Nutrition, [online] 106(6), pp.1514–1528. Available at: https://pubmed.ncbi.nlm.nih.gov/29092878/ [Accessed 11 Dec. 2021].
  33. ‌Keithley, J.K., Swanson, B., Mikolaitis, S.L., DeMeo, M., Zeller, J.M., Fogg, L. and Adamji, J. (2013). Safety and Efficacy of Glucomannan for Weight Loss in Overweight and Moderately Obese Adults. Journal of Obesity, [online] 2013, pp.1–7. Available at: https://pubmed.ncbi.nlm.nih.gov/24490058/ [Accessed 11 Dec. 2021].
  34. ‌Zalewski, B.M., Chmielewska, A. and Szajewska, H. (2015). The effect of glucomannan on body weight in overweight or obese children and adults: A systematic review of randomized controlled trials. Nutrition, [online] 31(3), pp.437-442.e2. Available at: https://pubmed.ncbi.nlm.nih.gov/25701331/ [Accessed 11 Dec. 2021].
  35. ‌Watanabe, T., Kobayashi, S., Yamaguchi, T., Hibi, M., Fukuhara, I. and Osaki, N. (2019). Coffee Abundant in Chlorogenic Acids Reduces Abdominal Fat in Overweight Adults: A Randomized, Double-Blind, Controlled Trial. Nutrients, [online] 11(7), p.1617. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6683100/ [Accessed 11 Dec. 2021].
  36. ‌Keithley, J.K., Swanson, B., Mikolaitis, S.L., DeMeo, M., Zeller, J.M., Fogg, L. and Adamji, J. (2013). Safety and Efficacy of Glucomannan for Weight Loss in Overweight and Moderately Obese Adults. Journal of Obesity, [online] 2013, pp.1–7. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3892933/ [Accessed 11 Dec. 2021].
  37. ‌Li, W., Li, B., Lv, J., Dong, L., Zhang, L. and Wang, T. (2018). Choline supplementation improves the lipid metabolism of intrauterine-growth-restricted pigs. Asian-Australasian Journal of Animal Sciences, [online] 31(5), pp.686–695. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5930279/ [Accessed 11 Dec. 2021].
  38. ‌Chen, H.-Y., Cheng, F.-C., Pan, H.-C., Hsu, J.-C. and Wang, M.-F. (2014). Magnesium Enhances Exercise Performance via Increasing Glucose Availability in the Blood, Muscle, and Brain during Exercise. PLoS ONE, [online] 9(1), p.e85486. Available at: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0085486 [Accessed 11 Dec. 2021].
  39. ‌Rodríguez-Moran, M. and Guerrero-Romero, F. (2014). Oral Magnesium Supplementation Improves the Metabolic Profile of Metabolically Obese, Normal-weight Individuals: A Randomized Double-blind Placebo-controlled Trial. Archives of Medical Research, [online] 45(5), pp.388–393. Available at: https://pubmed.ncbi.nlm.nih.gov/24830937/ [Accessed 11 Dec. 2021].
  40. ‌Ventura, M., Melo, M. and Carrilho, F. (2017). Selenium and Thyroid Disease: From Pathophysiology to Treatment. International Journal of Endocrinology, [online] 2017, pp.1–9. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5307254/ [Accessed 11 Dec. 2021].
  41. ‌Huang, Z., Rose, A.H. and Hoffmann, P.R. (2012). The Role of Selenium in Inflammation and Immunity: From Molecular Mechanisms to Therapeutic Opportunities. Antioxidants & Redox Signaling, [online] 16(7), pp.705–743. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3277928/ [Accessed 11 Dec. 2021].
  42. ‌Pillai, R., Uyehara-Lock, J.H. and Bellinger, F.P. (2014). Selenium and selenoprotein function in brain disorders. IUBMB Life, [online] 66(4), pp.229–239. Available at: https://iubmb.onlinelibrary.wiley.com/doi/10.1002/iub.1262 [Accessed 11 Dec. 2021].
  43. ‌Benstoem, C., Goetzenich, A., Kraemer, S., Borosch, S., Manzanares, W., Hardy, G. and Stoppe, C. (2015). Selenium and Its Supplementation in Cardiovascular Disease—What do We Know? Nutrients, [online] 7(5), pp.3094–3118. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4446741/ [Accessed 11 Dec. 2021].
  44. ‌Anton, S.D., Morrison, C.D., Cefalu, W.T., Martin, C.K., Coulon, S., Geiselman, P., Han, H., White, C.L. and Williamson, D.A. (2008). Effects of Chromium Picolinate on Food Intake and Satiety. Diabetes Technology & Therapeutics, [online] 10(5), pp.405–412. Available at: https://pubmed.ncbi.nlm.nih.gov/18715218/ [Accessed 11 Dec. 2021].
  45. ‌Nagao, T., Komine, Y., Soga, S., Meguro, S., Hase, T., Tanaka, Y. and Tokimitsu, I. (2005). Ingestion of a tea rich in catechins leads to a reduction in body fat and malondialdehyde-modified LDL in men. The American Journal of Clinical Nutrition, [online] 81(1), pp.122–129. Available at: https://pubmed.ncbi.nlm.nih.gov/15640470/ [Accessed 11 Dec. 2021].
  46. ‌Suzuki, T., Pervin, M., Goto, S., Isemura, M. and Nakamura, Y. (2016). Beneficial Effects of Tea and the Green Tea Catechin Epigallocatechin-3-gallate on Obesity. Molecules, [online] 21(10), p.1305. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6274011/ [Accessed 11 Dec. 2021].
  47. ‌Ishaque, S., Shamseer, L., Bukutu, C. and Vohra, S. (2012). Rhodiola rosea for physical and mental fatigue: a systematic review. BMC Complementary and Alternative Medicine, [online] 12(1). Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3541197/ [Accessed 11 Dec. 2021].
  48. ‌Hidese, Ogawa, Ota, Ishida, Yasukawa, Ozeki and Kunugi (2019). Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial. Nutrients, [online] 11(10), p.2362. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6836118/ [Accessed 11 Dec. 2021].
  49. ‌Zheng, Y., Ma, A., Zheng, M., Wang, Q., Liang, H., Han, X. and Schouten, E.G. (2018). B Vitamins Can Reduce Body Weight Gain by Increasing Metabolism-related Enzyme Activities in Rats Fed on a High-Fat Diet. Current Medical Science, [online] 38(1), pp.174–183. Available at: https://pubmed.ncbi.nlm.nih.gov/30074168/ [Accessed 11 Dec. 2021].
  50. ‌Tardy, A.-L., Pouteau, E., Marquez, D., Yilmaz, C. and Scholey, A. (2020). Vitamins and Minerals for Energy, Fatigue and Cognition: A Narrative Review of the Biochemical and Clinical Evidence. Nutrients, [online] 12(1), p.228. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7019700/ [Accessed 11 Dec. 2021].
  51. ‌Watanabe, T., Kobayashi, S., Yamaguchi, T., Hibi, M., Fukuhara, I. and Osaki, N. (2019). Coffee Abundant in Chlorogenic Acids Reduces Abdominal Fat in Overweight Adults: A Randomized, Double-Blind, Controlled Trial. Nutrients, [online] 11(7), p.1617. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6683100/ [Accessed 11 Dec. 2021].
  52. ‌Janssens, P.L.H.R., Hursel, R., Martens, E.A.P. and Westerterp-Plantenga, M.S. (2013). Acute Effects of Capsaicin on Energy Expenditure and Fat Oxidation in Negative Energy Balance. PLoS ONE, [online] 8(7), p.e67786. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3699483/ [Accessed 11 Dec. 2021].
  53. ‌Attipoe, S., Zeno, S.A., Lee, C., Crawford, C., Khorsan, R., Walter, A.R. and Deuster, P.A. (2015). Tyrosine for Mitigating Stress and Enhancing Performance in Healthy Adult Humans, a Rapid Evidence Assessment of the Literature. Military Medicine, [online] 180(7), pp.754–765. Available at: https://academic.oup.com/milmed/article/180/7/754/4160625 [Accessed 11 Dec. 2021].
  54. ‌Mousavi, A., Vafa, M., Neyestani, T., Khamseh, M. and Hoseini, F. (2013). The effects of green tea consumption on metabolic and anthropometric indices in patients with Type 2 diabetes. Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences, [online] 18(12), pp.1080–6. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3908530/ [Accessed 11 Dec. 2021].
  55. ‌Kim, H.M. and Kim, J. (2013). The Effects of Green Tea on Obesity and Type 2 Diabetes. Diabetes & Metabolism Journal, [online] 37(3), p.173. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3689013/ [Accessed 11 Dec. 2021].
  56. ‌Clinicaltrials.gov. (2014). Green Tea Extracts for the Prevention of Colorectal Adenomas and Colorectal Cancer – Full Text View – ClinicalTrials.gov. [online] Available at: https://clinicaltrials.gov/ct2/show/NCT02321969 [Accessed 11 Dec. 2021].
  57. ‌Machado, Á.S., da Silva, W., Souza, M.A. and Carpes, F.P. (2018). Green Tea Extract Preserves Neuromuscular Activation and Muscle Damage Markers in Athletes Under Cumulative Fatigue. Frontiers in Physiology, [online] 9. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6107802/ [Accessed 11 Dec. 2021].
  58. ‌OyetakinWhite, P., Tribout, H. and Baron, E. (2012). Protective Mechanisms of Green Tea Polyphenols in Skin. Oxidative Medicine and Cellular Longevity, [online] 2012, pp.1–8. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3390139/ [Accessed 11 Dec. 2021].
  59. ‌Xu, R., Yang, K., Li, S., Dai, M. and Chen, G. (2020). Effect of green tea consumption on blood lipids: a systematic review and meta-analysis of randomized controlled trials. Nutrition Journal, [online] 19(1). Available at: https://nutritionj.biomedcentral.com/articles/10.1186/s12937-020-00557-5 [Accessed 11 Dec. 2021].
  60. ‌Peng, X., Zhou, R., Wang, B., Yu, X., Yang, X., Liu, K. and Mi, M. (2014). Effect of green tea consumption on blood pressure: A meta-analysis of 13 randomized controlled trials. Scientific Reports, [online] 4(1). Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4150247/ [Accessed 11 Dec. 2021].
  61. ‌Mancini, E., Beglinger, C., Drewe, J., Zanchi, D., Lang, U.E. and Borgwardt, S. (2017). Green tea effects on cognition, mood and human brain function: A systematic review. Phytomedicine, [online] 34, pp.26–37. Available at: https://pubmed.ncbi.nlm.nih.gov/28899506/ [Accessed 11 Dec. 2021].
  62. ‌Khaliq, W., Andreis, D., Kleyman, A., Gräler, M. and Singer, M. (2015). Reductions in tyrosine levels are associated with thyroid hormone and catecholamine disturbances in sepsis. Intensive Care Medicine Experimental, [online] 3(S1). Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4798095/ [Accessed 11 Dec. 2021].
  63. ‌Attipoe, S., Zeno, S.A., Lee, C., Crawford, C., Khorsan, R., Walter, A.R. and Deuster, P.A. (2015). Tyrosine for Mitigating Stress and Enhancing Performance in Healthy Adult Humans, a Rapid Evidence Assessment of the Literature. Military Medicine, [online] 180(7), pp.754–765. Available at: https://academic.oup.com/milmed/article/180/7/754/4160625 [Accessed 11 Dec. 2021].
  64. ‌Williams, J.L., Everett, J.M., D’Cunha, N.M., Sergi, D., Georgousopoulou, E.N., Keegan, R.J., McKune, A.J., Mellor, D.D., Anstice, N. and Naumovski, N. (2019). The Effects of Green Tea Amino Acid L-Theanine Consumption on the Ability to Manage Stress and Anxiety Levels: a Systematic Review. Plant Foods for Human Nutrition, [online] 75(1), pp.12–23. Available at: https://pubmed.ncbi.nlm.nih.gov/31758301/ [Accessed 11 Dec. 2021].
  65. ‌Purdue.edu. (2011). Study: Reasonable quantities of red pepper may help curb appetite. [online] Available at: https://www.purdue.edu/newsroom/research/2011/110425MattesPepper.html [Accessed 11 Dec. 2021].
  66. ‌Shah, S., Shah, G., Singh, S., Gohil, P., Chauhan, K., Shah, K. and Chorawala, M. (2011). Effect of piperine in the regulation of obesity-induced dyslipidemia in high-fat diet rats. Indian Journal of Pharmacology, [online] 43(3), p.296. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3113382/ [Accessed 11 Dec. 2021].
  67. ‌Debski, B., Bertrandt, J., Klos, A. and Gralak, M. (2007). The Influence of Folic Acid, Vitamins B2and B6Supplementation on Feed Intake, Body and Organs Weight, and Liver Fatty Acids Composition of Rats Subjected to 3 months Moderate Protein Deprivation. Journal of Veterinary Medicine Series A, [online] 54(2), pp.57–61. Available at: https://pubmed.ncbi.nlm.nih.gov/17305966/ [Accessed 11 Dec. 2021].
  68. ‌Onakpoya, I., Terry, R. and Ernst, E. (2011). The Use of Green Coffee Extract as a Weight Loss Supplement: A Systematic Review and Meta-Analysis of Randomised Clinical Trials. Gastroenterology Research and Practice, [online] 2011, pp.1–6. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2943088/ [Accessed 11 Dec. 2021].
mitchelle-Morgan

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Mitchelle Morgan is a health and wellness writer with over 10 years of experience. She holds a Master's in Communication. Her mission is to provide readers with information that helps them live a better lifestyle. All her work is backed by scientific evidence to ensure readers get valuable and actionable content.

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