6 Best Thermogenic Fat Burners

For those struggling to lose excess body fat, thermogenic fat burners are a blessing. These supplements aid your weight loss efforts by promoting fat burning, increasing your energy level, suppressing food cravings and even reducing the absorption of fat from foods.

The food and drinks that we take every day are converted into energy in our bodies. This is known as metabolism. It involves biochemical processes. The energy that is released is used by the body for its many functions.

If you have a high metabolism it means that your body is able to burn energy from food at a faster rate than your friends and family members or others of your age. Thermogenic supplements refer to those dietary foods that promote the body’s natural metabolic rate.

What Are Thermogenic Fat Burners?

Calories are often thought to be real things. In reality, is a unit of energy. You gain fat when your body has more energy than what is needed and it gets stored in the fat cells for later use. The system of metabolism decides whats gets broken down into energy, what gets used up and what is stored in the fat cells.

Thermogenic means inclining to produce heat. Almost all reactions of enzymes in the body are thermogenic. Fat burner supplements that contain components that increase the body’s metabolic rate are called Thermogenic Fat Burners. Stored fat and calories get burned and the health goal of weight loss gets realized.

Every living mammal has the thermogenic process in their bodies. A standard rate of this process will burn an average amount of calories during an active (exercise)  and an inactive (rest) period of time.

Thermogenic fat burners contain a variety of herbal and other natural elements. Many of them contain stimulants such as caffeine that increases metabolism and therefore more energy gets spent. Quality thermogenic supplements are well-balanced with a combination of natural constituents that helps you to burn more fat.

Summary: Thermogenic fat burners contain a variety of nutrients, herbs, and stimulants such as caffeine which boost metabolism and promote fat burning in the body.

How Do Thermogenic Fat Burners Work?

Thermogenics are devised to rave-up metabolism so that more energy is burned and more stored fat gets broken down. The purpose is to expend more energy during exercise and rest. The expenditure of more energy means that more calories are burned and along with nutrition and an exercise regimen the goal of weight loss is achievable.

Studies that looked into the effects of heat on fat-burning arrived at the same conclusion. A 2010 study was conducted to determine whole-body fat oxidation of endurance-trained and untrained participants in the heat. 10 trained and 10 untrained subjects took up intensive training in a hot and dry environment. The exercise duration varied.  It was found that trained subjects oxidized more fat than untrained subjects.

When you feel hot your body works harder to cool. It means that more energy is spent and metabolism would use the stored fat to keep the body functioning. The precise science of thermogenic fat burners is not documented however the agreed inference is that it produces heat which speeds up the metabolic rate in the body. The supplements are formulated to work irrespective of the activity of the user.  An increase in activity automatically increases metabolism.

Many ingredients in thermogenic fat burning supplements promote weight loss by suppressing appetite, reducing food craving, reducing the absorption of fat from the diet and/or preventing the conversion of excess calories to stored fat.

Summary: Thermogenic fat burners work in many different ways. They increase metabolism and fat burning, suppress appetite and food craving and may reduce the absorption of fat from foods.

Top 6 Thermogenic Fat Burners of 2020

There are plenty of weight loss products available in the market that claim to miraculously melt away your body fat. Don’t fall for these as many of them may contain harmful ingredients that mess with your health.

Here e have listed the top 6 weight loss supplements in the market from reputed brands. They contain different combinations of ingredients that benefit your health in many ways beyond just weight loss. Compare them and select one that seems the best for you. Remember that they will not work overnight. So set a goal of at least 3 to 6 months and use them regularly and consistently to enjoy their benefits.

#1 Instant Knockout Fat Burner

Instant Knockout Fat BurnerThe ingredients in Instant Knockout Fat Burner has been thoroughly researched and chosen for its fat-burning properties. This supplement has 10 high-quality ingredients. All ingredients in it are naturally sourced. The three most important fat burning ingredients are green tea, capsaicin, and glucomannan which is dietary fiber. The company manufactures the capsule under the highest quality standards following the cGMP protocol.

The facility is FDA registered. The product is made in the United States. Manufactured by Roat Ambition which is UK based is popular for its sports performance supplements. Initially, the supplements were made only for pro boxers and MMA fighters and later were made available to everybody.

The manufacturing facility is FDA registered. Each capsule has a content of 500mg. The bottle has 120 capsules. Four capsules per day is the recommended dosage taken in the morning, before lunch and before the evening meal.

As the supplement contains caffeine other diets containing this ingredient should be avoided while using this fat burner. Users with medical conditions should consult a doctor before using this supplement. The company provides worldwide free shipping for the purchase of 3 bottles and above.


  • All-natural ingredients
  • Follows cGMP practices
  • Contains vitamin B6 and vitamin B12
  • 90-day 100% money-back guarantee

#2 Phenq

PhenQPhenq fat burners work on the metabolic pathway of thermogenesis. It has been formulated in the US and UK. The facilities follow the norms of GMP and are FDA approved. Made from 100% natural ingredients, these fat burners can be used by vegans too. PhenQ should be taken 2 times a day, once with breakfast and the other with lunch or dinner.

Its components are capsicum, caffeine, piperine, and niacin (vitamin B3). Chromium has been included to prevent food cravings. This product contains caffeine for boosting metabolism.

Nopal cactus native of the South Western regions of the United States and Mexico. It has a moist crunchy texture and a citrus taste in its natural form. The company provides free shipping for one or more than one bottle. The purchased supplement gets delivered within one or two days. The product is 100% safe and is legal. The supplement does not interact with other substances. A medical prescription is not required for its consumption.

PhenQ offers a 60-day money-back guarantee. A full refund excluding shipping charges will be returned to users who are not fully satisfied with the supplement.


  • 100% vegetarian ingredients
  • Can be consumed by vegans
  • Prevents any energy dips caused by dieting
  • Offers 60-day money-back guarantee excluding shipping charges

#3 Burn XT Thermogenic Fat Burner

Burn Xt Thermogenic Fat Burners are scientifically formulated. They claim to have the cleanest and highest quality ingredients available in the market. All raw materials used for this supplement has been naturally sourced with total lab transparency. The capsules do not contain artificial fillers, preservatives or food dyes.

The company follows the practices of cGMP in manufacturing supplements. The capsules are keto-friendly. The product is manufactured in the USA. For those who are getting initiated to this dietary supplement should consume only one capsule a day, to check for tolerance. Thereafter one can follow the directions accordingly.

The recommendation is 2 capsules two times a day with water in the morning on waking; the second dose can be taken 5 to 6 hours later. These veggie capsules can be ingested by men and women. Each bottle contains 30 capsules.

The ingredients are green tea extract, caffeine anhydrous, capsimax, cayenne pepper fruit extract, Bioperine black pepper, Acetyl L-Carnitine HCL. The other ingredients are hypromellose (capsule) and leucine. The product does not contain any steroids, soy or milk.

It should not be taken before sleep. At no time should the advised dosage be exceeded. The supplement works best with a well-balanced diet and exercise. The diet supplement does not cause jitters or fast heartbeats. The product is intended for people above 18 years of age. The company offers a 100% money-back offer to users who are not fully satisfied with the supplement.


  • The company follows total lab transparency
  • Naturally sourced ingredients
  • Can be used by men and women
  • Veggie capsules

#4 Vintage Burn Fat Burner

VINTAGE BURN Fat BurnerVintage Burn Fat burners are made with premium ingredients that include green tea extract, Garcinia Cambogia, and raspberry ketones. This supplement does not have any artificial substances of synthetic additives and preservatives.

The company called Old School Labs has been making dietary supplements for 4 decades. It boasts of a team of experts who are constantly in touch with customers. The dietary supplement had been formulated in California.

The main components are ginseng root extract, ginkgo leaf extract, L-Theanine, caffeine, bacopa herb extract, blueberry fruit extract. The other ingredients that are contained in the capsule are vegetable capsule and vegetable stearate. All ingredients are naturally derived and safe for consumption. It does not contain any proprietary blends. They are non-GMO. The manufacturing process undergoes third-party testing. The product does not contain gluten. The company adheres to the norms of GMP practices. It provides a complete refund to those who are not satisfied with the product. The diet supplement is not intended for children. The recommended dosage is 2 capsules before or with meals. It should not be taken at bedtime. For best results, it is suggested to consume the capsules 15 to 30 minutes before activity. At no point in time should a user exceed 4 capsules within a 24 hour period.


  • Includes premium ingredients
  • Team of experts constantly in touch with users
  • No artificial substances, additives or preservatives
  • Guten-free and keto-friendly

#5 Animal Cuts

Animal CutsAnimal Cuts deliver multiple supplements in one package. The container has 42 servings. Each pack has 9 pills and the suggested dosage is to use 2 packs a day. The color of the capsules represents the benefit it delivers. The yellow capsule is for thermogenesis; the orange capsule for metabolism; the thyroid complex capsules are white or red. The nootropic capsules are white in color. The cortisol inhibitor is white or blue in color. The capsules that raise bioavailability are blue in color.

One pack should be taken after waking up with a light breakfast. A banana would be sufficient. Small diets are preferred when using these fat burners. The next pack is to be taken 5 to 6 hours later. The routine should be followed for 3 weeks without a break. An off-cycle of one week is suggested. You can again take on the routine until you meet your health goals.

A consultation with a doctor is highly recommended for the use of this dietary supplement. If you prefer not to have any stimulants because you drink coffee then you can avoid the red pill. This stimulant capsule contains 220 mg of caffeine.

All quality control checks are done from start to end in the manufacturing process of the product. The company has been manufacturing supplements for bodybuilders for over 30 years. Both men and women can consume these fat burner pills. This supplement should not be taken by those who are below 18 years of age, pregnant and lactating women, those with a medical condition and those who are on other medications.


  • Provides supplements for overall fitness
  • Not gender-specific
  • Made in a GMP registered facility
  • User can make informed choices between different beneficial capsules

#6 Quadralean Thermo

Quadralean ThermoQuadralean Thermo has ingredients that are the most effective. Backed by scientific evidence the ingredients deliver many health benefits. It contains green tea and bitter orange that promote thermogenic activity in the body. Cayenne pepper fruit extract adds to the process. Each container has 180 capsules and the dosage is 3 capsules per day. It serves 500mg of CLA (conjugated linoleic acid)in each serving.

300 mg of choline bitartrate and 50 mg of alpha GPC are present in each serving. 25 mg Paradoxine and 500mg of L-carnitine are also included as components. The product ingredients are fully disclosed along with its dosage. The consumption of this dietary supplement does not cause any jitters or crash. The manufacturing process has been GMP certified.

The other ingredients are gelatin, silicon dioxide, titanium dioxide, magnesium stearate, and plant cellulose. The company undertakes third-party testing that ensures the quality and integrity of the supplement.

The product is intended for adults only. Lactating and pregnant women should not consume this product. People who are taking other medications or have a medical condition should have a doctor’s consultation before using this supplement.


  • Third-party tested
  • Does not cause jitters or crashes
  • Science-backed ingredients
  • 180 capsules in each pack

Who Benefits From Using Thermogenics Fat Burners?

Though it’s not recommended for children, teenagers, pregnant women or breastfeeding moms, anyone looking to lose some extra pounds can benefit from using fat burning supplements.

1. Men of all ages

Anyone above the age of 18 years who wants to lose weight, even a large amount of weight can benefit from using a fat burner. Some men carry a good amount of fat in the abdomen region that came to be known as ‘beer belly’. Fat burners are advantageous as they can work along with a balanced diet and exercise.

2. Women of all ages

Men have less body fat than women. Fat on the hips, butt and tummy area can be shed with the help of thermogenic fat burners accompanied by a good diet and regular exercise.

3. Athletes and weightlifters

Anyone who undertakes intensive training like athletes, weightlifters and fitness enthusiasts can gain from consuming thermogenic supplements. The benefits of increased metabolism are realized early with the help of these fat burners.

Bodybuilders who have mass muscles consume huge amounts of food. These types of supplements will help them to avoid fat gain in the process. Cut and bulk cycles followed by bodybuilders have a greater boost because of thermogenic fat burners.

4. The Elderly

Metabolism tends to slow down at a certain age for most people. This is a natural process. It changes as we grow old and we may have to change our diet accordingly to be fit and stay in shape. By using a fat burner lean muscles can be developed and metabolism can be increased.

The 4 Basic Elements of Thermogenic Fat Burners

Thermogenic fat burners use a mix of fat-burning ingredients to achieve health goals. Let’s take a look at some of the common elements used in these supplements:-

1. Stimulants

Stimulants are considered among the most important components in these supplements. Some of the most popular stimulants are caffeine anhydrous, guarana extract, green tea extract, and green coffee extract.

2. Thermogenic Extracts and Herbs

Many herbal and natural compounds are part of these supplements for their effects on thermogenesis. Examples are raspberry ketones, coleus forskohlii, capsaicin is an acid that is found in spicy peppers which are often added to promote thermogenesis.

A 2003 study to examine the effects of capsaicin involved 91 moderately overweight participants who were divided into 2 groups. Both groups took relative measurements for the study. One group did not undertake metabolism measurements.

Both groups underwent a 4-week very low energy diet followed by a 3-month weight maintenance period. In this phase, one group was given 135 mg a day and the other was given a placebo. Body mass of both groups was measured before and after the low energy diet period and during the first, second and third months of weight maintenance. Oxidation of fat was higher in the group that took capsaicin.

3. Appetite Suppressants

Many times appetite suppressants are included in these supplements to help to check diet. It should be used in conjunction with less food intake and or exercise depending upon the health goal of the individual.

4. Energizing Ingredients

Energizing ingredients like Panax ginseng, B vitamins are added to the supplements. They naturally boost your energy levels, helping you stay physically active.

Health Benefits of Common Ingredients in Fat Burners

Though the ingredients vary between supplements the goals of each of these fat burners are the same, which is to aid weight loss and build muscles. The ingredients used serve benefits to the user. Let’s take a look at some of the active ingredients in a fat burner.

1.  Caffeine

Caffeine is a stimulant and found in over 60 different plants. Some of them are yerba mate, guarana, coffee, cocoa, tea, and kola nut. The amounts of caffeine consumed vary the world over. Coffee and tea are the most known resources. Caffeine is found in soft drinks as well and energy drinks. The average consumption of caffeine is considered safe. Recent studies have shown scientific evidence linking caffeine with weight loss.

Obesity results when there is an imbalance between energy intake (EI) and energy expenditure (EI). Weight loss occurs when EI decreases or EE increases. Caffeine influences this energy balance by promoting EE and reducing EI. It has the potential to be used as a bodyweight regulator. This is achieved through thermogenesis and fat oxidation.

2. Capsaicin

Capsaicin is found in peppers. Spicy peppers have more capsaicin in them. This ingredient stimulates the release of adrenaline that gears up metabolism and more calories and fat gets burned. Capsaicinoids tend to bring about the calorie restriction on body weight loss.

Similar molecules called capsinoids that is non-pungent increases energy expenditure. The supplementation of capsaicin halts the decrease in fat oxidation. This characteristic of the ingredient helps in maintaining body weight in a postobese stage. Studies also show that capsaicin has an indirect influence on energy balance through its pain-killing properties that could improve sleep and regulate energy.

All these inferences point out that capsaicin is a potential body energy regulator and more studies are necessary to evaluate its benefits on long-term consumption. The stimulant reduces the appetite and promotes metabolism that helps to burn more calories while less food is eaten.

3. Garcinia Cambogia

Garcinia Cambogia commonly known as brindleberry or Malabar tamarind is a tropical fruit that is often included in weight loss supplements. It has a compound HCA (hydroxycitric acid) that blocks the activity of the citrate lyase an enzyme that is involved in fat formation. This fruit is considered safe for weight loss management.

A calcium-potassium salt of HCA called HCA-SX (Super CitriMax) has positive indications of bioavailability when taken on an empty stomach. A study that involved 60 volunteers were given a 2000kcal diet per day. They walked for 30 minutes over a 5-day/week and were given an oral dose of placebo or 2.800 mg of HCA. It was taken in 3 equally divided quantities 30-60 min before meals.

Measurements of BMI, excretion of urinary fat metabolites (a biomarker of fat oxidation) lipid profiles, serum leptin, and serotonin were taken. After 8 weeks a 5.4% and 5.2% decrease in body weight and BMI were noticed. There was a noteworthy reduction in LDL, total cholesterol, food consumption, triglycerides, and serum leptin. This study has shown that HCA-SX has a significant effect on weight management.

4. Yohimbe

Many other ingredients like synephrine, a natural stimulant found in bitter orange, yohimbine a chemical obtained from the bark of an African tree with the same name and epigallocatechin gallate (EGCG) a compound acquired from green tea extract make up for the components added to weight loss supplements.

Yohimbe improves blood flow by expanding blood vessels. It provides an energy surge by blocking alpha 2 adrenergic receptors and freeing up adrenaline stores in the body. A 2006 study using 20 athletes noted that 20mg of yohimbine in 2 equal doses for 21 days reduced fat mass in test subjects in comparison to placebo.

5. Protein Powders

Fat burning supplements often contain protein powder sourced from whey, soy pea, hemp, etc. Protein promotes fat burning and weight loss by suppressing appetite and promoting metabolism. Adequate protein intake during a weight loss regimen helps prevent muscle loss.

Replacing carbohydrates, in fat-reduced diets, with protein was found to improve weight loss efforts in a study that used 65  overweight and obese subjects. Another study conducted in 2015, by researchers in Denmark, noted that reducing carbohydrate intake, choosing low glycemic index foods and increasing dietary protein content significantly boosted weight loss and it also prevented weight regaining.

6. Dietary Fiber

Fiber is a major component of weight loss supplements as it is quite filling and makes a person feel full while adding little or no calories. Dietary fiber reduces ghrelin levels and suppresses appetite. Ghrelin is the hunger hormone released by your body to prompt you to eat food.

A study, conducted by the Beltsville Human Nutrition Research Center in the USA, observed that increasing fiber intake reduced fat and protein digestibility. As the number of calories being absorbed from the food decreases, it positively benefits weight loss efforts. This also promotes fat burning as your body turns to its stored fat for fuel.

How to Take a Thermogenic Supplement?

You should follow the instruction given on the package which most often states to take the supplement in 2 to 3 servings per day. It’s best to start with one serving during breakfast and the other at lunchtime.

The duration of this dietary supplement is usually 1 to 3 months only. Taking these supplements for a long period will stop any positive effects as the body gets used to them. The dosage should not be exceeded without a consultation with your doctor. Thermogenics are formulated for short time periods only.

Side Effects of Thermogenic Supplement

A forehand knowledge of side effects will be useful. Side effects may vary from person to person depending on many factors. Some side effects though are more common among users. Examples are dizziness, nausea, headaches, increased heart rate, and jitters.

Fat burners work by increasing the metabolic rate of the body. Stimulants like caffeine taken in the latter part of the day may cause sleeplessness. To avoid this situation it is best not to take them after mid-afternoon.

Thermogenesis heats the body that can lead to dehydration. Sufficient water and fluids should be taken when using thermogenic fat burners. It is advisable to first speak with a doctor before commencing on a dosage of fat burners.

How To Pick A Good Thermogenic Fat Burner

There are innumerable weight loss products available in the market. They have different formulas and use various combinations of ingredients. Here are some things to look for when making your purchase:

1. Ingredients

The label on the container gives the list of ingredients and its amounts present in the supplement. Does it contain other minerals and vitamins like B6, B12, and folic acid? Getting to know the scientific evidence of the benefits of these ingredients will be helpful.

A wholesome product that delivers the essential nutrients especially during the pre and post-workout periods will be effective. What are the amounts of active ingredients available?

2. Caffeine content

If you are a coffee drinker then it is important to know the quantity of this stimulant as it can keep you awake overnight and cause other side effects. A cup of coffee contains 80 to 160 mg of caffeine. The user may be sensitive to caffeine or other stimulants. A fat burner that has mate, guarana, cola, and tea leaf extract will have caffeine in them.

3. Convenience factor

Most thermogenic products do not instruct to take more than 2 servings a day. However, there are some that suggest more than 4 times a day which may be difficult to follow through.

4. Other Important Information

Independent third-party testing of the supplement ensures the integrity of the fat burner. Money-back guarantees convey the confidence of the manufacturing firm. Formulations that have the backing of scientific experts and professionals add more value to the supplement.

Though proprietary blends are used for competition’s sake, getting to know what goes into your body is more important.

The Bottom Line

Thermogenic Fat burners should be used only for a short period of time. Make sure to check the label before choosing a weight loss supplement. Note the ingredients mentioned and their quantities to ensure you select an effective fat burner. Avoid ones with long lists of ingredients, chemical preservatives, artificial sweeteners, flavors, and colors.

Thermogenic fat burners are not miracle supplements or magic pills. To be effective, they should be accompanied with proper diet and exercise. After losing weight, it is important to maintain a strict diet and exercise regimen. It’s easier to lose weight than to keep it off. So consider it as a lifestyle change rather than a short term fat loss regimen. These supplements will aid you in your journey towards a healthier and happier you.