Best Belly Fat Burner In 2024: Top 6 Stomach Fat Burner Pills That Actually Work

Best Belly Fat Burner
Best Belly Fat Burner on the MarketPhoto: Team Design

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Excess belly fat is a common problem that many people face. It can be difficult to get rid of, but there are many products on the market that claim to help. Do they really work?

If you’re looking for the best belly fat burner, this list can help you start. Remember that none of these supplements is a magic bullet. They’re designed to work best with a good diet and regular workouts.

Some of these products’ ingredients are fairly well-supported by scientific evidence, while others are more anecdotal. They also aim at different niches — men, women, intense athletes, and ordinary joes. Find the best fat-burning supplement for you, and start your health journey.

Best Belly Fat Burners In 2024

Best Belly Fat Burners On The Market In 2024


  • 60-day money-back guarantee.
  • 15% discount for subscriptions.
  • Contains some natural ingredients like nopal cactus and capsicum.
  • Can be bought on the official website only.

PhenQ is a popular stomach fat burner that has been named Editor’s Choice. It contains several ingredients that have been shown to aid in weight loss and fat burning, including α-Lacy’s Reset  Ⓡ, caffeine, capsimax powder,[1] and nopal cactus.

Caffeine is a natural stimulant[2] that can help increase metabolism and suppress appetite. PhenQ contains 100 milligrams of caffeine, which is about the same amount as an average cup of coffee. For people sensitive to caffeine, this might be a lot. However, it’s a normal amount for most people, and you can even have another cup or two of coffee if you’re used to having several.

α-Lacey’s Reset is composed of alpha-lipoic acid,[3] cysteine,[4] and magnesium[5] combined to produce appetite suppression, weight loss, and sustained energy.

Nopal cactus, also known as prickly pear cactus, is high in polyphenols,[6] amino acids, and fiber and has been used in traditional medicine to fight obesity. Research has shown little clinical significance[7] in the effect of nopal cactus on reducing body mass index or weight. A more recent 2022 study showed that combining nopal cactus with a calorie deficit and exercise produced healthy changes in the gut[8] microbiota, positively affecting metabolism in obese women.


  • All-natural and vegan.
  • Transparent about ingredients.
  • Designed for women.
  • Scientifically proven ingredients.
  • Little caffeine.
  • Customer service quality varies.
  • Some people report delayed results.

Leanbean is a belly fat burner specifically designed for women. Their most advertised component is glucomannan,[9] which has been reliably shown to reduce weight through its affects on appetite. This review found an average weight difference[10] of nearly two kilograms, or four pounds, in 8-week studies of supplementation in women.

Other major weight-loss ingredients include konjac fiber, choline, and chromium picolinate. Konjac fiber is a type of soluble fiber that can help reduce appetite[11] and promote feelings of fullness, as many types of fiber do. Choline is a nutrient that helps burn fat,[12] and chromium picolinate is a mineral that can help regulate blood sugar levels.

Leanbean also contains less caffeine than many other supplements, at only 10 milligrams. Remember that a cup of coffee is about 100 mg of caffeine, so even people sensitive to caffeine should be able to take Leanbean, which has only one-tenth that amount safely. Even people who aren’t sensitive to caffeine may prefer this, so they can still enjoy their coffee or tea while taking a belly fat burner.

Instant Knockout

  • Vegan and all-natural.
  • Designed for athletes.
  • Free shipping on bulk orders.
  • Very high caffeine content.
  • Requires four capsules a day.
  • Returns only for unused packages.

Instant Knockout might be the best fat burner for men, but it’s a potentially good fat burner for women too. The company claims it is designed for high-intensity fat burning and building lean muscle mass. It contains several ingredients that have been shown to aid in weight loss and fat burning, including green tea extract, cayenne pepper seeds,[13] L-theanine,[14] and glucomannan.[9]

Green tea extract is high in antioxidants[15] and can help increase metabolism. As discussed above, capsaicin[16] (found in cayenne pepper seeds) helps burn fat, and glucomannan also improves weight loss through its effect on satiety. The seeds may not be as good as advertised, though, since seeds contain little capsaicin, and its benefits[13] are still in the early stages of scientific proof.

This product contains 300 mg of caffeine, but that dose is being taken four times a day, so it may be enough to cause side effects like insomnia and shakiness. According to the FDA,[17] 1,200 mg can cause serious side effects like seizures, but only when taken very quickly. Monitor your reactions, especially at the beginning, and stop taking it immediately if you notice any serious side effects.


  • More scientific than some options.
  • Made in the USA.
  • May improve mood, focus, and energy.
  • High caffeine content.
  • Must be taken three times a day.

PhenGold is unusual on this list in that it has an accessible list of references for anyone interested in the research behind its ingredients. Some of their claims are very specific and clear.

One of PhenGold’s major focuses is on hormone-sensitive lipase[18] or HSL. This hormone inhibits the creation of new fat, and many of their ingredients, such as caffeine, L-tyrosine, Rhodiola,[19] green tea, and capsaicin,[20] have been shown to increase levels of HSL.[21] Among fat-burning pills, this emphasis is fairly unique.

Each serving of PhenGold contains 225 mg of pure caffeine, as well as some tea and coffee extracts, which may contain more. This is already a lot of caffeine; when multiplied by three servings, it becomes 675 mg. Although this amount should be safe for most people, it’s quite a bit, and you may experience jitters or sleeplessness.

Keto Charge

  • Made in the USA.
  • Designed for keto diets.
  • 60-day money-back guarantee.
  • Slightly less expensive than some others.
  • Difficult to find ingredients. 
  • Proprietary blend.

Keto Charge is a proprietary blend of ingredients in a belly fat burner specifically designed for those following a ketogenic diet. It’s simple and great for helping you follow a keto diet or for detox.

The supplement is composed of three active ingredients: calcium beta-hydroxybutyrate or BHB, sodium BHB, and magnesium BHB. There’s little difference between these three, and they’re usually referred to collectively in scientific literature as BHB salts. BHB compounds are part of how the body enters ketosis, so taking them as supplements can help encourage ketosis without such a strict diet.

There is little research on the subject, but this small study[22] where study participants took 3.7 grams suggests that many of Keto Charge’s claims are true. However, Keto Charge only includes 800 mg of the salts in its ingredient list, falling short of the amount used in the study to achieve effective results. 

Supplementing with BHB salts can induce ketogenesis and even help minimize some of the negative side effects often felt at the start of a keto diet; thus, it seems like an effective product if the small dose is enough to accomplish claims.


  • 60-day money-back guarantee.
  • Price is reasonable considering it’s two supplements.
  • Vegan.
  • Free shipping on all orders.
  • Scientific sources listed.
  • Two separate pills.

Phen24 is a unique belly fat burner because it works both day and night. The daytime formula contains several ingredients that have been shown to aid in weight loss and fat burning, including caffeine, guarana extract[23] — also containing caffeine — and cayenne powder. It also includes ashwagandha and L-phenylalanine, both of which can improve your mood and reduce stress.

The nighttime formula contains several ingredients that have been shown to improve sleep quality, promote relaxation, and burn fat. For example, L-theanine, an extract from tea, has been shown to transform white fat into brown fat,[14] which is more easily burned and more commonly found in healthy people. It also contains the amino acid L-arginine.[24]

The Day capsule contains 150 mg of caffeine or about one and a half cups of coffee. Unless you’re sensitive to caffeine, this is a very reasonable amount of caffeine and should cause no problems.

Phen24 is another company that cites many of its scientific sources. The sources are tucked away at the bottom of a long webpage, but they’re there for people who want to look for them.

Do Belly Fat-Burning Pills Actually Work?

There are many different types of belly fat-burning pills on the market, but do they actually work? The answer is not straightforward.

Some studies have shown that certain ingredients in these pills can help with weight loss and fat burning, while others have shown no effect. Inconsistent results are often unreliable and difficult to interpret.

It’s important to note that these pills are not a magic solution and should be used in conjunction with a healthy diet and exercise. Perhaps this lack of lifestyle enhancement accounts for some of the differences often seen between studies.

In this list, we’ve tried to point out what claims are supported by evidence and which are clouded with conjecture and uncertainty. No supplement is perfect, but some are a lot better than others, so doing your research is essential.

How Do Fat Burner Supplements Work To Burn Stomach Fat?

Unfortunately, you cannot spot reduce any fat on your body. However, as you burn fat throughout, you will likely notice your stomach starting to slim down. Being patient with the weight loss process is important, as everyone’s body works differently.

Effective fat burner supplements work in several ways to help you lose body weight and reduce fat in general. The methods depend on the brand, but many of them use some combination of these mechanisms:

  • Increasing metabolism: Many fat burners contain ingredients that can potentially help increase your metabolism, which can help you burn more calories throughout the day. Ingredients like caffeine increase your energy and metabolism, while the ingredient capsaicin is an effective fat burner. 
  • Suppressing appetite: Some fat burners contain ingredients that they claim can help reduce your appetite, which can help you eat less and lose weight. Glucomannan is one popular ingredient that reduces appetite, decreasing calorie intake, but many other ingredients fulfill similar functions.
  • Boosting energy levels: Caffeine is one of the ingredients commonly chosen for this purpose, and so are vitamins, especially vitamin B, which can improve your energy and mood. When your energy is kept up, you can be more active and burn more calories.

Health Benefits Of Using Belly Fat Burners

It is important to note that choosing an effective fat burner depends on the ingredients they decide to use and how effective they are in the doses used. The FDA does not regulate supplements, so companies have control over what is on their labels without a higher authority looking over their shoulder. This may put some users at risk of side effects or purchasing a product that does nothing for them.

Despite all of this, some fat burners can make a positive difference in metabolizing stubborn belly fat, and they may induce the following health benefits:

Weight Loss

Fat-burning supplements can help you lose weight by increasing your metabolism and, at the same time, reducing your appetite. This two-pronged approach to weight loss not only helps you shed excess abdominal fat but also contributes to improving your overall health.

Losing weight reduces your risk of various diseases, from heart diseases like stroke and heart attacks to autoimmune diseases, diabetes, and many more. Not to mention, excess body fat is a risk factor for complications in diseases like COVID-19. Losing weight is one of the best things you can do for your health.

Reduced Inflammation

Some ingredients in belly fat burners have anti-inflammatory properties, which can help reduce inflammation in the body. Micronutrients like vitamin B are a great example.

Anti-inflammatory compounds can help mitigate the risks associated with chronic inflammation, such as arthritis, diabetes, obesity, and even certain types of cancer. However, the best way to reduce inflammation is a healthy diet, so always make sure you live a healthy lifestyle, not just rely on a supplement to solve all your problems.

Increased Energy Levels

Many belly fat burners contain ingredients that can potentially help boost your energy levels, which can help you stay active and improve your overall health. These natural fat burner supplements include green tea and caffeine, two popular ingredients in our top choices. This is especially helpful when you’re also trying to eat healthier and start a diet since a calorie deficit can leave you feeling tired and lethargic.

Whether it’s caffeine to kickstart your mornings or another natural fat burning supplement, these components can help elevate your energy levels and lower body weight, keeping you motivated and active throughout the day. With higher energy levels, getting exercise and staying active will be easier — contributing to weight loss, better cardiovascular health, increased muscle tone, and an overall sense of vitality.

Side Effects Of Belly Fat Burners

The side effects depend on the formula and ingredients. For example, common side effects of caffeine include jitteriness, insomnia, nausea, headaches, and increased heart rate. On the other hand, high choline levels can increase the risk of heart disease, although this is unlikely in the dose most supplements contain.

A lot of the side effects will also depend on the person taking the supplement. Allergic reactions are often reported to natural ingredients, and certain people who are highly sensitive to caffeine may not be able to handle most products. People with uncontrolled diabetes or who are on insulin should stay far away from the Keto Charge weight loss supplement — ketosis is a dangerous complication in diabetes, not a useful way to lose weight.

It’s important to talk to your doctor before taking any new supplements, especially if you have any underlying health conditions. If you ever feel negative side effects on a supplement, especially when just starting, stop taking it immediately. Talk to your doctor about the side effects before you start taking the supplement again.

Who Should Use Pills To Lose Belly Fat?

Essentially, no one needs to use pills to lose belly fat, and no method or tool will target belly fat. However, in combination with a healthy diet and consistent exercise regimen, certain fat burners may help speed up your progress. It is still important that you stick to losing one to two pounds per week to reduce your chance of gaining the weight back in the future.

Tips To Choose The Right Belly Fat Burner

When choosing a belly fat burner, there are a lot of factors to consider. So many products are on the market, and choosing the best one for you can be hard. This list selected only the best natural supplements to lose belly fat, but it can still be confusing, so here are a few tips.

Consider Goals

The most important thing is knowing what you want and your goals. For example, you might choose Keto Charge if you’re on the keto diet, but if you want lots of energy for athletic fitness as well as weight loss, you might be more attracted to Instant Knockout; Leanbean is great for women, but Phen24 cuts down on cravings while you sleep. Pay attention to what you want to achieve, and choose the supplement that best fits your own goals. 

Look for a belly fat burners with ingredients shown to aid in weight loss and fat burning. Do your research and make sure any sources cited actually say what the company claims. 

Read Reviews

Read reviews from other users to get an idea of the product’s effectiveness. Ideally, find reviews on a third-party site like Amazon, not on the company’s own site. This is difficult because many of them sell only on their own site, but find what you can.

Carefully read a company’s return and money-back policy. You might want to try a few different brands before you decide which one is right for you, and it could be a problem if you’re trying something like Instant Knockout, where returns are only accepted if the package is unopened and unused.

Price is usually also a concern. On this list, though, most of the supplements are very close in price to each other. Of course, sales or bundle deals can affect this, but scientifically chosen ingredients are a much more important consideration than price.

Potential Side Effects

You should also consider side effects — as mentioned above, different people are more likely to experience different side effects, so consider everything from your own perspective. If you have a few problems with caffeine, avoid items with very high amounts, and if you have larger problems with caffeine, steer clear of supplements with any or almost any. Think about allergies, too, and pay close attention to labels.


If you’re struggling with belly fat, there are many belly fat burner supplement options out there. We’ve tried to compile the best in this list, but it’s still a large number to choose from. Some of the most important considerations for this choice are personal goals, scientific basis, reviews, price, and return policy.

Using belly fat-removing supplements can sometimes be a healthy choice, as some brands offer a product that could deliver numerous health benefits. The most likely source of side effects is caffeine, as some of these supplements have very high levels of it, but for people who are not unusually sensitive to caffeine, it should all be safe. 

When using supplements, remember that no supplement is ever a magic bullet. A healthy diet, full of healthy fruits and vegetables and whole food, can never be replaced by vitamins and greens, and exercise can never be replaced by diet pills.

We hope this article has helped you understand some of the most popular belly fat burner supplements and given you more resources to make your choice. Choose carefully and be clear on what you want from a supplement. Enjoy the journey.

Frequently Asked Questions

Is there a pill to lose belly fat?

Many different pills are on the market aimed at belly fat loss. However, it’s important to note that these pills are not a magic solution and should be used in conjunction with a healthy diet and exercise.

Should I exercise while using belly fat burner pills?

Yes, it’s important to exercise while using belly fat burner pills. Exercise can help increase your metabolism and burn more calories throughout the day. Many supplements are specifically designed with energy boosts to help you exercise.

How long does it take to see results with supplements to lose belly fat?

The amount of time it takes to see results with supplements varies depending on the product and individual factors such as diet and exercise habits. It’s important to be patient and consistent with using these products.

Are there any natural alternatives to belly fat-burning supplements?

Natural alternatives to belly fat-burning supplements include eating healthy and doing exercises like walking, running, biking, rowing, swimming, cycling, high-intensity interval training, strength training, Pilates, and yoga.

What burns the most belly fat?

The best exercise to lose belly fat depends on your preference, but aerobic exercises like walking, running, biking, swimming, and cycling are great options, along with HIIT or high-intensity interval training. Supplements help burn fat, but exercise will still do more.

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EHproject has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. We work mostly with peer-reviewed studies to ensure accurate information. We avoid using tertiary references. You can learn more about how we ensure our content is accurate and current by reading our editorial policy.

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Christine is a certified personal trainer and nutritionist with an undergraduate degree from Missouri State University. Her passion is helping others learn how strong and healthy they can become by transforming their daily habits. Christine spends… See More