Instant Knockout Review: Can You Really Lose Weight and Burn Fat with a Natural Supplement?

By Amber Smith
Oct 6, 2023 5:00 AMOct 6, 2023 4:49 PM


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This is a review of the fat burner supplement Instant Knockout Cut. Created by Roar Ambition, Instant Knockout Cut is a market-leading fat-burning supplement that promises to burn fat, suppress appetite, reduce belly fat, and generally increase weight loss using only natural ingredients.

While it might sound too good to be true, our Instant Knockout review found that taking Instant Knockout regularly can really make a difference to body weight. Despite using only natural ingredients, it can have a visible impact on fat loss in just a few weeks, and, because the ingredients are all natural and scientifically supported, it's 100% safe to consume.

The main active ingredients in Instant Knockout, and the ones that distinguish it most from the competition, are glucomannan for appetite control, cayenne pepper seeds for thermogenic fat burning, caffeine for fat burning and boosting energy levels, L-Theanine to level out the effects of the high dose of caffeine, and a perfectly-formulated vitamin mix aimed at weight loss and weight maintenance.

As part of our research, we checked other Instant Knockout reviews and found an abundance of favourable ones. In general, Instant Knockout reviews were extremely positive, and we couldn't find a decent one that wasn't impressed by the product. Furthermore, Instant Knockout customer reviews over overwhelmingly positive, with many reporting rapid reductions in body weight, along with improvements in energy levels and less food cravings.

The Instant Knockout fat burner is one of if not the best natural weight loss supplement available for athletes and gym goers, but it is also a great option for anyone who wants to lose weight whatever your exercise schedule. We actually went as far as to rate it the best weight loss aid for men for 2023. That said, even the best fat burner will work better when combined with regular exercise and a balanced diet.

Instant Knockout Cut Is Available from:

Instant Knockout Review

Reducing one's body fat percentage can be a challenge even for the most active person. Using a fat burner supplement like Instant Knockout Cut can speed up the weight loss process by improving appetite control and helping you to consume fewer calories while maintaining energy levels.

There are a whole host of fat burners available, and knowing how to choose one that is both effective and safe can be a challenge. Especially since every product claims to be the best. In this Instant Knockout review, we'll explain who can benefit most from Instant Knockout Cut and why, how Instant Knockout Cut helps with losing fat, and what each of the ingredients adds to the product.

Who is Instant Knockout Cut For?

Originally designed to help athletes and professional fighters lose weight before a weigh-in, Instant Knockout Cut is now available to anyone with weight loss ambitions. Even now, despite being widely available, Instant Knockout Cut's rapid weight loss formula is recommended by MMA fighters and coaches who have used the product for over a decade for its ability to reduce body fat mass fast in a safe, healthy, and legal way having won multiple awards in the process.

Both male and female athletes can benefit from Instant Knockout Cut, but women should be careful of the caffeine content as high doses of caffeine can negatively affect some women. Although, unlike other caffeinated fat burners, Instant Knockout Cut does include L-Theanine, which reduces the negative impacts of caffeine (more on this later).

While best suited to active people (due to the high caffeine dose that is designed to keep you motivated in the gym even while running a calorie deficit), even fairly sedentary people who are struggling to lose weight or shed stubborn belly fat can benefit from Instant Knockout Cut, as it contains thermogenic fat burners that increase your metabolic rate and ingredients that will suppress your appetite.

How Does Instant Knockout Cut Work?

Given that the ingredients in Instant Knockout are all natural, and even household names in some cases, it might be surprising to learn about the powerful impact they can have on the weight loss process. It should be noted that the amounts included in Instant Knockout Cut are far higher than can be easily consumed at home. For example, to consume enough capsicum (the active ingredient in cayenne pepper seeds) by eating chillies would be an uncomfortable experience, to say the least. A major component in the effectiveness of Instant Knockout Cut is the doses. As with all fat-burning supplements, getting the doses right is as important as having the right ingredients.

The carefully-balanced, and effectively dosed formula used to create Instant Knockout Cut targets weight loss in a number of ways. First, it has effective appetite suppression abilities thanks to a high dose of glucomannan. Glucomannan is a dietary fiber that expands in the stomach and makes you feel full. This makes appetite control easier and helps people to consume fewer calories.

The second way Instant Knockout Cut works is by boosting metabolism and increasing calories burned. Using energy means burning calories, and Instant Knockout Cut increases energy levels and energy expenditure through a high dose of caffeine and green tea extract. What's more, both of these ingredients speed up fat metabolism in a number of ways, including altering or improving the way certain hormones function.

Third, Instant Knockout Cut targets your mental performance, ensuring you have the motivation and concentration to cut enough calories to lose weight and maintain an active exercise schedule. This effect is achieved with a dose of L-Theanine, which, in addition to reducing the negative effects of high caffeine intake, reduces stress and improves sleep quality. In addition, Instant Knockout Cut contains vitamin B6, vitamin D, and vitamin B12, a combination that is guaranteed to support a positive mental outlook, along with a host of other weight management benefits.

Ingredients in Instant Knockout

Glucomannan - Glucomannan is a dietary fiber derived from the root of the konjac plant. It is included in Instant Knockout Cut and other weight loss supplements due to its ability to promote feelings of fullness and reduce appetite. Instant Knockout Cut contains 1800mg of glucomannan per serving. When consumed, glucomannan absorbs water in the digestive tract, forming a viscous gel that slows down the emptying of the stomach and delays nutrient absorption. This leads to increased satiety and reduced calorie intake.

Several studies support the use of glucomannan for weight loss. For example, a study published in the Journal of the American College of Nutrition found that participants who used glucomannan supplements experienced significant weight loss compared to the placebo group [1]. Another study, published in the Journal of Obesity, found that glucomannan supplementation resulted in significant reductions in body weight, body fat, and waist circumference and it is widely considered one of the best commercially available weight loss aids [2,3].

Cayenne Pepper Seeds - Cayenne pepper seeds contain an active compound called capsaicin, which has been proven effective for weight loss. Capsaicin helps with weight loss through several mechanisms. Firstly, it increases thermogenesis, which is the process of heat production in the body. This results in an increased metabolic rate and calorie expenditure leading to faster weight loss [4]. Furthermore, capsaicin can have direct beneficial effects on fat metabolism. Preliminary studies show that it is able to stimulate the breakdown of fat cells and inhibit the formation of new fat cells [5]. Instant Knockout Cut contains 100mg of cayenne pepper seeds per serving, an adequate dosage to benefit from thermogenic fat burning.

Green Tea Extract - Green tea extract is a powerful natural weight loss supplement and can be found in many fat burners (although often at doses too low to be effective). Instant Knockout Cut contains 500mg per serving, which is plenty for it to be effective. Green tea extract contains high levels of catechins, particularly epigallocatechin gallate (EGCG), which are known to be responsible for weight loss. Studies show that green tea extract can increase fat oxidation and thermogenesis, which are processes that help the body burn calories and fat [6].

Green tea extract may also help with weight loss by reducing appetite. A study published in the journal Physiology & Behavior found that the consumption of green tea extract resulted in a reduction in appetite and an increase in satiety [7].

Black Pepper Extract - Black pepper extract, also known as piperine, is a natural compound. It does not directly contribute to weight loss but it does have potential benefits that can support weight management efforts and promote fat oxidation and fat burning. Instant Knockout Cut features 10mg of black pepper extract and its main function is to improve the bioavailability of the other ingredients which are included for their direct weight loss benefits.

Interestingly, new research also suggests a direct link between piperine and weight loss, because piperine can potentially inhibit the formation of new fat cells, known as adipogenesis, in the body, and it might also enhance thermogenesis. However, more research is needed to confirm these findings.

Caffeine - Another common ingredient in Instant Knockout Cut is caffeine. Found in numerous weight loss supplements, high doses of caffeine are a sure way to increase metabolism and burn fat. The Instant Knockout fat burner contains 300mg of caffeine androgens per serving. Caffeine promotes weight loss by increasing metabolism, and through appetite suppression by affecting certain hormones and neurotransmitters related to hunger and satiety. It can also increase energy expenditure and fat oxidation, thereby further promoting weight loss.

L-Theanine - While many fat burners contain caffeine for its weight loss properties, few contain the complimentary L-Theanine. Instant Knockout Cut boasts 100mg of L-Theanine and this has the effect of reducing the negative impact of caffeine. It reduces the jittery energy that high caffeine doses lead to, and it prevents any chance of anxiety by reducing stress levels. L-Theanine's inclusion in the Instant Knockout fat burner really gives it an advantage over other caffeine-based weight loss products.

Vitamin D3 - Vitamin D is a crucial nutrient that plays a significant role in various physiological processes, including weight management. While it may not have a direct impact on weight loss, several studies suggest that maintaining adequate levels of vitamin D can support weight loss. Each serving of Instant Knockout Cut contains 1800 IU of vitamin D, ensuring you enjoy the list of weight loss benefits it offers, including regulating appetite [8], increasing fat metabolism, improving insulin sensitivity, supporting muscle function, and increasing muscle mass. There is an abundance of scientific studies documenting the health benefits of vitamin D that can easily be found on the internet, so we won't list them all here.

Vitamin B6 - Vitamin B6 is involved with metabolism, energy production, and the breakdown of carbohydrates, proteins, and fats. Therefore, while it does not directly contribute to losing weight, it plays an important role in the processes that surround the weight loss journey. Instant Knockout Cut contains 5mg of vitamin B6, which is a significant dose. Studies show that people with higher levels of vitamin B6 tend to have a lower body mass index (BMI) and waist circumference [9].

Vitamin B12 - While it doesn't directly contribute to weight loss, vitamin B12 can indirectly support weight management efforts. In part because it can lead to mood improvements and better concentration resulting in more consistent dieting and exercise. In addition, vitamin B12 can improve weight loss by helping to maintain a healthy metabolism. Research suggests that a deficiency in vitamin B12 can lead to a slower metabolic rate, making it more difficult to burn calories efficiently.

Instant Knockout Review Conclusion

Like so many other Instant Knockout reviews, we found Instant Knockout Cut to be top-of-the-range fat burner that can help athletes, gym goers, and other active people achieve a healthy weight rapidly.

The combination of appetite suppression, thermogenic fat burners, energy boosters, and metabolism stimulators, means this product targets body fat from every angle. And, best of all, it does so with natural ingredients that are safe to consume.

The only thing to watch out for is the high caffeine dose, which might have negative effects on anyone particularly sensitive to caffeine. Although Instant Knockout Cut has reduced this chance as best it can with the inclusion of calming L-Theanine.

In conclusion, using Instant Knockout Cut, together with a healthy diet and regular exercise, will help you lose weight and attain a lean, fit physique safely and effectively. Tried and tested by professional athletes, Instant Knockout Cut is easily the best weight loss supplement for active people currently available.

Instant Knockout Cut Is Available from:


Chen, J., Tang, J., & White, J. (2007). Glucomannan and obesity: a critical review. Journal of the American College of Nutrition, 26(6), 639-646.

Walsh, D. E., Yaghoubian, V., Behforooz, A. (1984) Effect of glucomannan on obese patients: a clinical study. International journal of obesity, 8(4), 289-293.

Janssens, P.L., Hursel, R., Martens, E.A., & Westerterp-Plantenga, M.S. (2013). Acute effects of capsaicin on energy expenditure and fat oxidation in negative energy balance. PLoS ONE, 8(7), e67786.

Kang, J.H., Goto, T., Han, I.S., Kawada, T., & Kim, Y.M. (2010). Dietary capsaicin reduces obesity-induced insulin resistance and hepatic steatosis in obese mice fed a high-fat diet. Obesity, 18(4), 780-787.

Dulloo AG, et al. (1999) Efficacy of a green tea extract rich in catechin polyphenols and caffeine in increasing 24-h energy expenditure and fat oxidation in humans. The American Journal of Clinical Nutrition, 70(6):1040-1045.

Westerterp-Plantenga MS, et al. (2006) Metabolic effects of spices, teas, and caffeine. Physiology & Behavior, 89(1):85-91.

Lenders CM, et al. (2013) Vitamin B-6 status is associated with indices of body composition in young adults. Journal of the Academy of Nutrition and Dietetics, 113(11):1552-1559.

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