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Instant Knockout Reviews 2023 – Is It A Legit Fat Burner Or A Scam?

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  • Increases Fat Burning
  • Reduces Fat Storage
  • Suppresses Appetite
  • Boosts Metabolism

Brand Information

  • Headquarters in Tennessee
  • Delivery time is 2 to 3 days
  • Efficient customer support
  • Easy ordering process

Medical Benefits

  • Suppresses appetite
  • It may help burn fat
  • It can help boost energy
  • Made of natural ingredients

About The Brand

If you want to lose weight, several things need to be handled first. This includes suppressing your appetite, boosting your energy for an active lifestyle, and improving your metabolism. This may be possible if you use an Instant Knockout fat burner. 

It is always great when you can get a product that can promote fat loss safely. That is why this Instant Knockout review exists. It is all about helping you learn more about the product and why you should pick it for your weight loss journey.

What is Instant Knockout?

Instant Knockout was first developed for MMA fighters. However, its popularity among other fat burners has made it available to the masses. You can now buy some from the official company website and start using them once it is delivered. 

If you have always wanted to get ripped like the fighters, this product would be a nice way to start. Of course, you have to include workouts too. Since the product promises to deliver on more energy, you can always work out even longer. 

The product also promises to help improve insulin sensitivity, boost metabolism, increase fat burning, and so much more. Let us see if this is true by analyzing its ingredients in detail.

Where to Buy Instant Knockout?

After reading this Instant Knockout review, you may be ready to consider buying the fat-burning supplement. To do that, head over to the Instant Knockout official website to place your order. 

The company has a simple method to follow when placing your order. You will also get several options when buying the product. You can get a one-month supply or several months supply. It all depends on your needs. 

If you are new to using it, consider choosing a one-month supply before ramping up your supply later. 

You will get a tracking number in 24 hours once the order is shipped. Most USA clients get their product within two to four working days. If you are in other countries, you will be given a timeline on when to expect delivery. 

If you ever want to return unwanted or unused Instant Knockout products, get in touch with customer support for more information.


Here are some of the pros you will get with the product. 

  • An impressive appetite suppressant 
  • Safe due to the use of natural ingredients
  • It lacks artificial sweeteners
  • The formula has studies backing each ingredient 
  • It may boost your energy levels


Some cons associated with Instant Knockout include:

  • It is an expensive product
  • The caffeine content might be too high for some people
  • Only sold through the company’s official website

Health Benefits of Instant Knockout

The health benefits of this supplement are mostly based on the different Instant Knockout ingredients. A good example is green tea extract which is vital for enhancing your metabolism. As such, you can expect to have more energy and burn more fat stored in the body. 

The manufacturer also uses high-quality ingredients such as caffeine anhydrous, black pepper extract, zinc, and more to assure the users of a better weight loss journey. Since these ingredients are also natural, they help minimize the chances of ending up with allergies. 

Appetite suppressants that also work as metabolism boosters are a welcomed idea. That is what you get with this weight loss supplement. It can help lower your food cravings so that you do not have to eat all the time. When your body is at a calorie deficit, you should lose weight and achieve your weight loss goals.  

Any Instant Knockout fat burner review will show you how it also helps improve insulin sensitivity. Anyone who has had trouble with regulating blood sugar understands how important this is for their bodies. Even if you do not have blood sugar regulation problems, having better insulin sensitivity is vital for your health. 

You will be able to experience more benefits as you continue to use this product for a long time.

Instant Knockout Ingredients Reviews 2023

instant knockout

Best Choice

Instant Knockout

  • Natural weight loss ingredients
  • Boost the body’s metabolism
  • suppress food cravings

Instant Knockout Nutrition Facts

After looking at the various ingredients, below is a chart detailing each ingredient and its amount per serving of the Instant Knockout supplement.

Serving Size: 4 Capsules
Servings per Container: 30
Per Serving% DV
Vitamin B6 (as pyridoxine HCI)5mg250
Vitamin B12 (as cyanocobalamin)10mcg166
Zinc (as zinc oxide)10mg150
GTF Chromium (as picolinate)100mcg82
Green Tea Extract (leaf)500mg**
Green Coffee Extract (bean)100mg**
Cayenne Powder (fruit)100mg**
Glucomannan (konjac fruit)500mg**
Caffeine Anhydrous350mg**
Black Pepper Extract (standardized to 95% PE)10mg**

Still, each ingredient used in the product has scientific backing. Consumers would feel the manufacturer took enough time to research and come up with a safe product for them to use for weight loss.

Instant Knockout fat burner is many things. Such include appetite suppressants, fat burning, metabolism boosters, and more. All this is possible because of the various ingredients contained in the supplement. 

Each ingredient in the supplement in some way leads to fat loss. If you are trying to lose weight, then chances are you would want such ingredients. So, which are these ingredients? Below is a detailed look at the ingredients in the weight loss supplement.

Green Tea Extract

This is probably the most commonly used ingredient in many other weight loss products. It is used for its safety and efficacy. 

The green tea extract stands out as a powerhouse for fat burning as it contains bioactive polyphenols known as catechins. Catechins offer caffeine-like benefits where you get the stimulation you need to go through your workouts. 

These green tea extract nutrients will also help in attacking the fat on your body from different angles. As such, you should end up burning fat more effectively. 

The extract works by ramping up your metabolism and breaking down the stored energy so that you have elevated energy levels. It is why after using the product, you would feel like plowing through the workouts even better. 

It is not just all talk, as there is still scientific evidence that green tea is effective in weight loss[1]. The study found that green tea can help with weight loss and still keep the weight off too. 
Another study found that catechins, which are the main nutrients in green tea, would boost fat oxidation up to 16% in just 24 hours[2]. This should be more reason for someone to feel it is worth using Instant Knockout for their weight loss journey.

Cayenne Pepper Seeds

Since there are many weight loss theories associated with using pepper, it is nice to see it also on the list of Instant Knockout ingredients. 

In this case, Instant Knockout contains cayenne pepper seeds, which are packed with vitamins A, C, and B6. Such a concentration of nutrients will deliver quite the punch when the supplement is more often. 

Do not worry that your supplement would be too spicy. The manufacturer has craftily balanced it so that you do not find it too hot to use. 

Cayenne pepper contains capsaicin as the main fat-burning component. This nutrient will boost your insulin sensitivity, thus improving how you process and store carbs. 

Still, cayenne is known as a thermogenic ingredient too. This is because it is still able to boost your overall metabolism. This should result in more fat burning. You will also experience increased energy expenditure and fat oxidation due to cayenne pepper.


This is probably the reason Instant Knockout is categorized under appetite suppressants. This is because of how this nutrient works. 

Unlike most of the other ingredients on this list, this one does not boost metabolism or improve insulin sensitivity. Its work is to suppress your appetite and food cravings mostly. 

Glucomannan is a natural fiber that can be categorized as a complex carbohydrate. It contains both beta D-mannose and beta D-glucose compounds. These are long-chain carbohydrates that can pass through your stomach without being digested. This should make the consumer feel fuller for longer. 
Several critical studies on glucomannan have shown that it can help with short-term weight loss[3]. Once you combine it with other ingredients such as those in Instant Knockout, you should end up with long-term weight loss.

Caffeine Anhydrous

Instant Knockout contains caffeine anhydrous as a way of giving you the boost you need to power through workouts. 

The work of this nutrient is to stimulate the nervous system and get it into overdrive. The same is also good at inhibiting the adenosine receptors. The result of these actions is that you can now have more energy and power to go through different workouts. 

The nutrient is also good for improving your focus. It will do this by reducing fatigue and ramping up your cognitive abilities. The result is that you would now be more alert and ready to handle any task at hand. Well, working out at the gym also needs a focused mind. 

Other than just helping with the gym workouts, the nutrient is still good for reducing fatigue generally. You should now have enough energy to do other activities too. It will also improve your overall insulin sensitivity.

Vitamin B6

The B vitamins are also present in the Instant Knockout supplement. In this case, we look at vitamin B6 or also known as pyridoxine. 

This is an all-rounder ingredient as it promotes a healthy lifestyle. It does this by improving how the body synthesizes energy. When the body synthesizes the fat cells for energy, you end up losing weight and still have a boost in your metabolism. 

B6 also helps the body to absorb more amino acids. These are then used in building your muscles

This vitamin is still important for helping you control your diet. The result is that you can easily achieve a calorie deficit, leading to weight loss over time.

Vitamin B12

This is another B vitamin as part of the ingredients in Instant Knockout. The vitamin is crucial for helping you convert the food into usable energy. 

You will also find that metabolism increases when this vitamin is introduced into the body. The result is that you now have more energy to last you longer in the gym. You also have the stamina to train harder. 

The consumers of the Instant Knockout supplement would be able to tolerate their diets for longer. Most people also experience improved moods and immune systems even when they cut out some food types from their diet. 
Vitamin B12 is still vital for breaking down fatty acids, maximizing the protein synthesis process, and improving your carbohydrate digestion. As you can see, the vitamin can help you achieve a leaner and athletic body. Do not forget about physical performance too[4].

GTF Chromium

GTF Chromium is probably the most underrated nutrient as a fat burner supplement. This nutrient can lead to some interesting benefits if you try it out. 

This essential trace element is not in the minds of most people. To make it worse, most people today eat foods high in sugar. This leads to the elimination of chromium through urine; thus you end up with chromium deficiencies. 

This nutrient plays an important role in controlling insulin. Since insulin is vital in the storage of carbs, it is vital to have it in check always. This type of control leads to better insulin sensitivity in the body. 

Other than controlling insulin, the nutrient also boosts the energy levels in a person, improves metabolism, and reduces most food cravings. 

All the processes mentioned above affect how you can lose weight. 

With the increase in energy levels in the body, you can expect to work out better in the gym. 
Some other studies show how GTF chromium can help in reducing cravings and appetite[5]. If you do not eat as much as before, you will be at a calorie deficit. That is good to help with your weight loss process.


Protein synthesis is important if you want to become lean. To make this possible, there is the need to have enough Zinc in the body. Zinc will boost testosterone vital for ensuring your body can make lean muscles just as you want. 

Zinc has many other benefits for the body too. This is because it also helps the body process carbohydrates, proteins, and fat into usable energy. It is why you would have high energy levels after you use the Instant Knockout fat burner. 
Several studies have shown that supplementing zinc in your diet[6] can improve fat and glucose metabolism in the body. If this happens regularly, there are chances of losing weight steadily too. Of course, you also have to combine it with working out.


Piperine is a black pepper extract that contains bioactive chemicals that help in weight loss. Some of the things the extract would do are boost thermogenesis, aid in digestion, increase metabolism, and suppress fat cells’ formation. 

The nutrient also acts as an on-switch for TRPA-1 and TPRV-1 fat-burning receptors. Once these receptors have been triggered, they will lead to elevated energy levels and new fat cell formation suppression.

Green Coffee Bean

The chances are you have come across green coffee beans before. If you are new to such a term, these are unroasted coffee beans. 

The green coffee beans do not have caffeine content; however, they compensate for this by offering the chlorogenic acid compound. The acid is crucial for slowing down the rate of fat absorption from food. 

Chlorogenic acid also reduces any sugar cravings you might be having. This should be a great way to help stick to your diet. 

It may also help lower cholesterol which can, in turn, improve your body composition and overall health.

Is Instant Knockout Safe?

You will find Instant Knockout as one of the safest fat-burning supplements on the market right now. Considering it uses natural ingredients to develop this product, it gives the consumers the confidence that they are consuming a safe product. 

Since the formula also lacks proprietary blends, it stands out as a safe option for vegans too. 

Even though some might be concerned about the caffeine content, it is not too much to make you feel uncomfortable using the product. Having caffeine in manageable amounts is good to boost your energy for the day. Just don’t take the capsule before bedtime.

How Does Instant Knockout Work?

The Instant Knockout fat burner approaches weight loss in three main ways. They include increasing the body’s metabolism, suppressing food cravings, and improving your energy levels to maintain an active lifestyle. 

Your body needs enough energy if it is going to keep various functions of the body running right. It is why there is a need to increase metabolism. Having a slower metabolism generally means less fat is burned for energy. As such, an increase in metabolism should help you burn more fat. 

The ingredients such as green coffee beans, green tea, and more will be great in improving your natural metabolism. As a result, you even burn more fat than before while at rest. 

Considering that the Instant Knockout supplement can suppress food cravings, you would be able to eat healthier and only when necessary as recommended by a dietitian. Constant snacking and eating are what can result in more fat storage. So, now you will have the chance to suppress your appetite and food cravings. 

If you have to maintain an active lifestyle, then you need more energy. Let us say you love weight lifting. Without the necessary energy, it becomes harder to work out. As such, you need such a supplement to boost fat metabolism for more energy necessary for working out. 

Several users who have tried out this supplement claim they enjoyed elevated energy levels throughout their workout sessions.

Instant Knockout Review: What Real Users Say?

“On day one, I got not much sleep after taking Instant Knockout. This part was on me as I took it only an hour before my bedtime. Other than lacking sleep, so far, the progress is great.”

Owen Bush

“This is the second month I am using Instant Knockout. Normally, I would have already given up if it was another supplement. That is not the case with this one. I am still using it and enjoying the results.”

Jim R. 

“When I saw it was developed for MMA fighters, I figured that it is not a bad thing to be ripped. Let us just say it is a great product. Well, it might take more trips to the gym to be ripped like an MMA fighter, but I am slowly getting there.”

Richard G.

“Sometimes you might not be sure what to use for weight loss. This is because there are so many options, and some might have an effect on your hormonal balance. I am enjoying Instant Knockout for the last three months I have been using it. I also workout, so the results are significant too.”

Martha Gardner

Potential Side Effects

The ingredients in Instant Knockout products can help with fat burning; however, they could also have some side effects. 

One of the biggest worries is caffeine content. To some, it might not be much, but to others, it is a significant amount. As such, take it easy when you first start using the product in the first few days. 

Some of the effects of using caffeine in high amounts are that you might end up with a rapid heart rate, addiction, digestive issues, insomnia, and increased anxiety. 

The caffeine in the product makes this not the best product before going to bed. This is because you might have issues sleeping since caffeine is a stimulant. 

Pregnant women are advised not to use this product. Also, talk to a doctor first if you have any underlying condition before using the product.

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How To Take Instant Knockout?

If you are going to take Instant Knockout, follow the manufacturer’s information on using the supplement. The manufacturer recommends that you take up to four capsules in a day. 

Take the first capsule half an hour before breakfast, the second capsule half an hour before lunch, the third capsule during mid-afternoon, and the fourth capsule half an hour before your evening meal. 

If you want to see results, make sure to use the supplement consistently for a couple of weeks. 

Take the last capsule at least 5 hours before bedtime. This is to prevent caffeine in the product from keeping you awake.

Is It Worth Buying?

The Instant Knockout review above shows you what you can expect when looking for the best fat burner. This product will boost your metabolism, suppress appetite, and increase your energy levels. These are all important processes if you ever want to lose more weight. 

Since the product is also made of natural ingredients, the chances of allergies being triggered are minimal. Even vegans can enjoy using this product. 

There have been a few complaints about caffeine levels, but they are still within the manageable level for most people. However, make sure to take the capsule at least five hours before bedtime so that you can sleep better.

Frequently Asked Questions

What is the legality of buying Instant Knockout?

It is legal to buy and use Instant Knockout anywhere in the US. This is because its ingredients are natural and legal.

How long will it take for Instant Knockout to work?

Energy boost and appetite suppression effects start on the same day. However, weight loss will take a few more weeks to notice.

Is Instant Knockout FDA approved?

Like any other dietary supplement, Instant Knockout is not FDA evaluated or approved. Always talk to your doctor before using it.

Can you buy Instant Knockout from local stores?

No. You can only buy from the official Instant Knockout online store. It is even not available in popular stores such as Walmart, CVS, or Walgreens.

How long will it take to receive the Instant Knockout product?

It takes up to four days for US clients. If you are in other countries, it might take up to 10 days. You will receive a tracking number to help track your shipment’s progress once it is sent for shipping from the company.

+ 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. Hursel, R., Viechtbauer, W. & 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://pubmed.ncbi.nlm.nih.gov/19597519/
  2. Hursel, R., Viechtbauer, W., Dulloo, A.G., Tremblay, et al. M.S. (2011). The effects of catechin rich teas and caffeine on energy expenditure and fat oxidation: a meta-analysis. Obesity Reviews, [online] 12(7), pp.e573–e581. Available at: https://pubmed.ncbi.nlm.nih.gov/21366839/
  3. Zalewski, B.M., Chmielewska, A. & 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/
  4. Lukaski, H.C. (2004). Vitamin and mineral status: effects on physical performance. Nutrition, [online] 20(7-8), pp.632–644. Available at: https://pubmed.ncbi.nlm.nih.gov/15212745/
  5. Anderson, R.A. (2009). Effects of Chromium on Body Composition and Weight Loss. Nutrition Reviews, [online] 56(9), pp.266–270. Available at: https://pubmed.ncbi.nlm.nih.gov/9763876/
  6. Kelishadi, R., Hashemipour, M., Adeli, K., Tavakoli, N., Movahedian-Attar, A., Shapouri, J., Poursafa, P. & Rouzbahani, A. (2010). Effect of Zinc Supplementation on Markers of Insulin Resistance, Oxidative Stress, and Inflammation among Prepubescent Children with Metabolic Syndrome. Metabolic Syndrome and Related Disorders, [online] 8(6), pp.505–510. Available at: https://pubmed.ncbi.nlm.nih.gov/21028969/
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Written by:

Healthcanal Staff

Medically reviewed by:

Kimberly Langdon

HealthCanal Editorial team is a team of high standard writers, who qualified the strict entrance test of Health Canal. The team involves in both topic researching and writting, which are under supervision and controlled by medical doctors of medical team.

Medically reviewed by:

Kimberly Langdon

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