Best Fat Burner Supplements – 10 Pills for Weight Loss 2023

Blanca Garcia

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

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PhenQ Supplement


  • Vegan 
  • Cacti fiber
  • Good money-back guarantee

Up To 50% Off When Buying In Bulk



  • Formulated for women
  • Caffeine-free
  • Vegan, gluten-free, non-GMO, soy-free



  • Good money-back guarantee
  • Manufactured in FDA registered facility
  • Transparent to ingredients

Up to 55% Off When Buying in Bulk

Fat burners sound like the ultimate solution to get rid of stubborn fat. Most people looking for a fat burner tend to want to lose abdominal fat and gain muscle mass. 

It’s easy to want a quick solution and not do much to get there. 

The reality is it doesn’t work like that; to achieve an effective weight loss journey, it takes a combination of a healthy diet and exercise. Once those are in line, high-quality fat burners can get the body to burn some stored fat. 

Fat burners are popular because of their proposed health benefits such as an increase in performance, a boost in metabolism, and weight loss. 

By choosing the best fat burner supplements, training, and healthy eating, the body burns calories from stored fat or prevents body fat from accumulating in the body[1]

Best Fat Burner On The Market 2023

Does Fat Burner Actually Work?

It’s up in the air[2]; many dietary supplements promise to help you lose weight or get rid of stubborn belly fat. These thermogenic fat burner supplements come with a blend of ingredients that help raise resting metabolic rate (RMR) to help with fat burning. But in a recent study[3], it was shown that although they do increase the RMR, there needs to be more research on its promotion of actual fat loss over time. So we just don’t know for sure. 

Let’s dive into the top seven fat-burning pills. 

Top 7 Best Fat Burning Pills 2023


PhenQ Supplement

Up To 50% Off When Buying In Bulk

PhenQ’s trademarked formula is ɑ-Lacys Reset® which contains blends of top quality ingredients making this the Editor’s Choice.

  • Vegan 
  • Cacti fiber
  • 60-day money-back guarantee
  • More than 50% discount per bottle if buying in bulk
  • Available only online

To burn fat with the best natural fat burners, choosing PhenQ is a good choice. PhenQ has a proprietary blend that helps burn fat, stop fat production, suppress the appetite, boost energy, and improve mood. It includes capsimax powder containing a combination of capsicum (red pepper), piperine (black pepper), caffeine, and vitamin B3 that increases the resting metabolic rate for weight loss. Other ingredients include chromium picolinate, caffeine, nopal (cacti), and L-carnitine fumarate. 

Together these thermogenic ingredients create a powerful thermogenic fat burner. It is vegan friendly, and nopal acts as the appetite suppressant. This is a fat burner for men and women. The recommended dosage for PhenQ is two pills per day, one for breakfast and one for lunch, and each bottle comes with a 30 day supply. 

It comes with a 60-day money-back guarantee. Simply send back any unused product in its original package within 67 days, and you get your money back minus the shipping costs. For more significant discounts, buy in bulk with bonus materials, including a logbook, nutrition, and workout guides with meal plans.


A unique fat-burning supplement with low stimulants, it is the best thermogenic fat burner for those sensitive to caffeine.

  • Formulated for women
  • Caffeine-free
  • Vegan, gluten-free, non-GMO (genetically modified organisms), soy-free
  • Complicated return policy
  • Available only online

A fat burner for women, unlike other fat burners, helps you lose weight with low stimulants and is vegan-friendly gluten-free, non-GMO, and soy-free. It includes 11 low-stimulant alternatives to support fat burning. Its ingredients are impressive, making it a unique fat-burning supplement. Fiber taken from the Konjac plant, a southeast Asian plant known as glucomannan, manages cravings[4]

Another exciting ingredient is turmeric, instead of caffeine anhydrous (dehydrated caffeine), which creates uncomfortable side effects. This weight loss pill also contains choline, chromium picolinate, vitamin B2, vitamin B12, chloride, zinc, green coffee, Garcinia cambogia, acai berry. 

It is vital to take the recommended dosage. That is six capsules per day; two capsules, three times a day, to be taken 30 minutes before breakfast, lunch, and dinner. The return policy is a 90-day money-back guarantee only for the complete bundle and must follow instructions on shipping the product back.



Up to 55% Off When Buying in Bulk

PhenGold is the fat burner supplement with the most transparent information. This weight loss pill helps one understand which stimulants will help burn excess fat.

  • Transparent to ingredients
  • Manufactured in FDA registered facility
  • 100-day money-back guaranteed
  • High concentration of caffeine
  • Reports of side effects

When looking to get rid of excess fat and it’s time to evaluate dietary supplements, it can be confusing without knowing the exact amount each stimulant has. PhenGold is excellent at sharing each ingredient’s amount for ease of choice. 

PhenGold’s ingredients come with two amino acids, L-theanine and L-tyrosine; green tea, green coffee, Rhodiola rosea, cayenne pepper, caffeine, and Vitamins B3, B6, B12. Manufactured in the U..S. in FDA-registered facilities. It is a vegetarian, vegan-friendly, and dairy-free fat burner. 

Dosage indicates two capsules per day, one 20 minutes before breakfast and one before a workout. PhenQ also has the most outstanding money-back guarantee of 100 days for any product that has been purchased with more than one month’s supply. The return policy will only be allowed after the product is used for 50 days, and the guarantee only is used with the first purchase.

Instant Knockout

Athletes designed fat burning supplement that anyone can use. This supplement comes with a high caffeine concentration and is made with all-natural ingredients.

  • Vegan
  • All-natural ingredients
  • GMCA, GMP., and FDA registered facilities
  • High concentration of caffeine
  • Not recommended with other supplements with stimulants

Instant Knockout with its high concentration of caffeine helps optimize the burning of fat. It’s the best fat burner for men, but women can use it too. It has added nutrients that help with reducing appetite and, at the same time, increase energy levels. 

Everyone has different fat loss goals and is looking for a weight loss supplement that increases energy and burns stored fat. The ingredients that make this fat burner supplement unique are vitamins D3, B6, B12, and the supplements are caffeine, L-theanine, green tea extract, cayenne pepper, black pepper extract, and glucomannan.

It’s manufactured in a Food and Drug Administration (FDA) and a Greater Manchester Combined Authority (GMCA) registered facilities. As well as certified to be made with Good Manufacturing Practices (GMP). 

The recommended dosage is one capsule four times a day, one in the morning and one before each meal. It has a 30-day return policy for the USA/Canada and 14 days for all other countries. All products can be returned as long as they are sealed, unused, and unopened.


Formulated with women in mind, reduces cravings, and minimizes calorie intake. Powher, a great belly fat burner supplement, was developed in consultation with Registered Dietitians.

  • Formulated for women
  • Developed alongside Registered Dietitians
  • Variety of products
  • Artificial sweetener
  • Not optimal for men

Looking for a line of products that work in sync with women’s bodies that provide more than just a fat burner? Powher has a fat-burning supplement, a pre-workout low stimulant, and multivitamins. Of the many fat burner product lines, Powher is the only one with a pre-workout supplement and multivitamin that you can pair.

The ingredients are simple and to the point. They include glucomannan, caffeine from coffee arabica, choline, chromium picolinate, magnesium, and selenium. The pre-workout can be purchased for additional mild stimulants, and for increased vitamin intake, multivitamin is also available. 

You can only find this product through its website, and the recommended dosage is two capsules before breakfast, lunch, and dinner for a total of six capsules per day. The money-back guarantee only applies to the purchase of the ultimate pack. Used empty bottles and all unopened packages are to be returned within 90 days of purchase.

Hourglass Fit

Offering full-day support for keeping hunger controlled, it helps to reduce calorie intake and beat food cravings.

  • Caffeine-free
  • Vegan, non-GMO, gluten-free, soy-free
  • Mild stimulant
  • Only available through manufacturer
  • Four capsules per day

Want another alternative to the typical caffeine-based fat burners? Hourglass Fit is caffeine-free, and its ingredients are top quality. They help beat sugar cravings with Capsimax, an extract of capsaicinoids made from hot red chili peppers. Its common ingredients to other fat burners are glucomannan, vitamins B2, B6, B12, chromium, and zinc. The ingredient that stands out in this fat burner is the amino acid 5-HTP[5], a precursor to serotonin that can help boost serotonin levels and improve mood. It has also been shown to counter hunger feeling hormones[6].

This product has natural ingredients that, when used alongside exercise and eating well, help a woman lose weight without the use of caffeine.

According to dosage, four capsules per day, one in the morning, at lunch, in the evening, and with the evening meal. It has a 30-day return policy for the USA/Canada and 14 days for all other countries. All products can be returned as long as they are sealed, unused, and unopened.


With 100% natural ingredients and formulated for women with a good caffeine concentration.

  • Simple ingredient list
  • All-natural ingredients
  • Caffeine concentration in a safe range
  • Not Vegan
  • Taken 30 minutes before breakfast

Another woman-inspired fat-burning supplement. Trimtone is a simple-to-use fat-burner, one pill before breakfast. That’s it. The ingredients are simple but effective. The ingredients are caffeine, grains of paradise, green coffee, green tea, and glucomannan. 

Trimtone is a great product for busy people that just can’t seem to remember to take their supplements. It can be used as a pre-workout with caffeine to get you focused and boost your energy. 

The great advantage is that it has a 100-day money-back guarantee for more than one month of purchasing a product. Remember that the claim is only applicable on the first purchase and will only assess money-back claims after the product is used for 50 days.

How We Chose The Best Fat Burners?

Now are all fat burners the same? Definitely not. 

Depending on their ingredients, concentration, dosage, and usage, each may have different levels of functions. They can function as fat burners, suppress fat absorption, or provide appetite suppression. 

Some factors are to be considered when evaluating dietary supplements to recommend, specifically fat-burning supplements. We examined those with natural ingredients,  with caffeine or stimulant-free fat burners, those that are vegan, manufactured in FDA-registered facilities, and ones formulated for women or both genders. We also looked at those that have good return policies and customer reviews. These are all quality indicators of a good supplement.  


Most fat burners will have similar fat-burning ingredients with differing concentrations. The following are some popular ingredients. 

  • Black pepper extract (Bioperine)
  • Caffeine
  • Cayenne pepper
  • Dietary fiber
  • Glucomannan (a type of fiber)
  • Green tea
  • Green tea leaf extract
  • Vitamin B6
  • Vitamin B12

Some less common ingredients are

  • Proprietary blends
  • Grains of paradise
  • Nopal (Cacti)
  • Turmeric
  • Garcinia cambogia
  • Acai berry
  • Piperine
  • Rhodiola rosea
  • 5-HTP


Generally, the prices are within the range of $45-$70 for one bottle. You can find discounts through bundle purchases, subscriptions, and email subscriptions with package supplements. 

The return policies vary per product; all offer a 30, 60, or 90-day money-back guarantee. Some provide a full refund for any product opened or not, and others provide refunds for bundles only. 

Each product calculates shipping at checkout, and some even offer duty paid for international purchases. Each of these offers a list of countries it does not deliver to and will have instructions on what to do if customs rules have changed. 


​​When choosing a fat burner, the dosage is very important. The dosage depends on each product, and some are one capsule per day or up to six capsules per day. The variations will depend on the ingredient quantity and concentration. If choosing a product with a high amount of pills per day, consider your level of commitment. 

Customer Reviews

Customer reviews typically give us further insight into a product’s effectiveness, whether side-effects were experienced, customer satisfaction with the supplier, product quality, and whether any problems were experienced. Some of these customer reviews are listed here.

“After six months on PhenQ I have lost 30 pounds. It is still a good idea to exercise and count your calories (I use My weight-loss warrior is Phen.”


“Great fab burner but be careful, I took these with a low-calorie diet and exercise and lost three stone in three months. I stopped taking them to stabilize weight.”


“The product produces loads of heat! It caused me nausea and caused sores on my lips! It’s not a safe product. I would not recommend it.”

Sumeet Arora

How Do Thermogenic Fat Burners Work?

Commonly known as fat-burning supplements, thermogenic fat burners include a blend of ingredients designed to help improve the way the body looks, its performance, or improved recovery[7]. The ingredients are bioactive compounds that are naturally found, such as caffeine, green tea extract, and L-carnitine, to name a few. 

These work by increasing the resting metabolic rate (RMR), increasing heat production in the body, and increasing energy use. But it does not mean that no extra effort is needed. A healthy diet and exercise program are essential for weight loss. 

Potential Side Effects

Fat burners claim to not have any side effects due to their natural ingredients. But most of these fat burners have the same ingredients with some stimulant levels. Some people may be sensitive to stimulants or have sensitivity at certain times of the day. These can cause side effects of dizziness, shakiness, headaches, nausea, or sleeplessness. 

It is important to communicate with your physician if side effects are present and report them to the company for product improvement. Side-effects of products should also be reported to the FDA’s adverse event monitoring program.

Final Thought

The reality is that although the attraction is there for fast results to lose weight and encourage the body to burn fat, each person will react differently. There is no guarantee that a weight loss supplement will work even with exercise and eating well. 

Although fat burners have ingredients like caffeine and green tea, which are the top researched thermogenic ingredients proven to increase the resting metabolic rate (RMR), they do not guarantee burning fat and losing weight. Even if each product has a variety of ingredients in differing concentrations, the body will react individually.

Frequently Asked Questions

1. Who should not take fat burning supplements?

Fat burner supplements are not for pregnant women, lactating, or anyone under 18 years of age. Fat burners are for healthy adults who want to lose body fat through supplements, a healthy diet, and an exercise program.

How fast will I see results?

To lose fat is entirely dependent on the body’s metabolism, eating habits, and exercise.

Are there any side effects?

Each fat burner states having natural ingredients and has no reported side effects. However, the ingredients in the fat burner, such as caffeine, can have some side effects like dizziness, shakiness, headaches, nausea, or sleeplessness.

Do I have to diet and exercise?

Yes, no supplement is a magic pill that doesn’t require some work. Exercise and diet are essential for losing weight. 

Do the fat burners interact with medications?

The fat-burning supplement companies recommend that you consult your physician before consuming it if you are taking any medication. Some medications may not pair well with over-the-counter supplements. 

Can I use these fat burners with other supplements?

Most supplements have varying concentrations of stimulants, and it’s wise to avoid any other supplements that also contain the common fat burner ingredients. Otherwise, you risk having side effects like dizziness, shakiness, headaches, nausea, or sleeplessness.

+ 6 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. Jeukendrup, A.E. and Randell, R. (2011). Fat burners: nutrition supplements that increase fat metabolism. Obesity Reviews, [online] 12(10), pp.841–851. Available at:
  2. Campbell, B.I., Colquhoun, R.J., Zito, G., Martinez, N., Kendall, K., Buchanan, L., Lehn, M., Johnson, M., St. Louis, C., Smith, Y. and Cloer, B. (2016). The effects of a fat loss supplement on resting metabolic rate and hemodynamic variables in resistance trained males: a randomized, double-blind, placebo-controlled, cross-over trial. Journal of the International Society of Sports Nutrition, [online] 13(1). Available at:
  3. Campbell, B.I., Colquhoun, R.J., Zito, G., Martinez, N., Kendall, K., Buchanan, L., Lehn, M., Johnson, M., St. Louis, C., Smith, Y. and Cloer, B. (2016). The effects of a fat loss supplement on resting metabolic rate and hemodynamic variables in resistance trained males: a randomized, double-blind, placebo-controlled, cross-over trial. Journal of the International Society of Sports Nutrition, [online] 13(1). Available at:
  4. Walsh (2017). Effect of glucomannan on obese patients: a clinical study. International journal of obesity, [online] 8(4). Available at:
  5. Bakshi, A. and Prasanna Tadi (2021). Biochemistry, Serotonin. [online] Available at:
  6. Heisler, L.K., Jobst, E.E., Sutton, G.M., Zhou, L., Borok, E., Thornton-Jones, Z., Liu, H.Y., Zigman, J.M., Balthasar, N., Kishi, T., Lee, C.E., Aschkenasi, C.J., Zhang, C.-Y., Yu, J., Boss, O., Mountjoy, K.G., Clifton, P.G., Lowell, B.B., Friedman, J.M. and Horvath, T. (2006). Serotonin Reciprocally Regulates Melanocortin Neurons to Modulate Food Intake. Neuron, [online] 51(2), pp.239–249. Available at:
  7. Tinsley, G.M., Urbina, S., Mullins, J., Outlaw, J., Hayward, S., Stone, M., Foster, C., Wilborn, C. and Taylor, L. (2017). Influence of A Thermogenic Dietary Supplement on Safety Markers, Body Composition, Energy Expenditure, Muscular Performance and Hormone Concentrations: A Randomized, Placebo-Controlled, Double-Blind Trial. Journal of sports science & medicine, [online] 16(4), pp.459–467. Available at:
Blanca Garcia

Written by:

Blanca Garcia, RDN

Medically reviewed by:

Kathy Shattler

Blanca is a Registered Dietitian Nutritionist and freelance nutrition writer from Los Angeles, CA. She has more than 8 year’s experience in nutrition and dietetics. She is a Latina and enjoys traditional Mexican and Salvadoran cooking, eating flavorful meals and sharing her knowledge about food and nutrition with others through her writing.

Medically reviewed by:

Kathy Shattler

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