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Best Calorie Deficit Fat Burner Supplements for Men [UPDATED 2021]

Want a calorie deficit? Could a fat burner help? Read on to find out!

Looking to lose those love handles and get back your six pack? You can read hundreds of articles on the internet about how to achieve this, but there is really only one way – entering a calorie deficit.

You’ll know that it’s really, really hard to burn fat to show of your muscles, despite how many times you go to the gym. It’s a fact that we all consume more calories than we think, and if you don’t control your diet, your weight can increase.

That’s why you need to activate a calorie deficit and make your body feel the burn.

What is a calorie deficit?

As you’ll know, a calorie is a unit of energy, and your body stores excess calories as fat.

To enter a calorie deficit you need to use more calories than you are taking on. Which means you need to eat better, and exercise regularly.

Once you’re in a calorie deficit your body can access its stored fat and will get to work burning it off.

Can a supplement help achieve a calorie deficit?

There are lots of types of supplements which could help you on your path to a calorie deficit. The most common of which is the fat burner.

Fat burners are not a ‘magic pill’, regardless of advertisements. They combine natural, plant-based compounds that may support healthy fat loss alongside regular exercise and a healthy diet.

They often contain ingredients like cayenne pepper to help speed up your natural metabolic rate, potentially giving you and edge in burning fat. The best method is a great diet and plenty of exercise, but a good quality fat burner could also provide you with better results.

A great fat burner should be:

  • Safe
  • Effective
  • All-natural
  • Good value for money

If you’re eating clean, exercising and are in a calorie deficit, these supplements could help you realize your goals sooner. Healthy fat-loss isn’t always easy, but a high-quality fat burner can support it.

Check out the best fat burners for a calorie deficit below.


  • Cutting-edge, premium formula
  • Top quality
  • Natural ingredient profile
  • No proprietary blends
burn lab pro
  • Streamlined formula
  • Mental boost
  • Science-backed
  • Multi-buy discount
  • Natural formula
  • No additives
  • Plant based
  • Well researched

  • Low in stimulants
  • Holistic support
  • Natural ingredients
  • Suitable for men



Hunter Burn



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  • Six natural ingredients
  • Potent streamlined formula
  • Research backed
  • Clinically served
  • Bulk-buy deals offered to save users cash
  • No proprietary blends


  • Higher cost bracket
  • Not vegetarian or vegan friendly (gelatin capsule)
  • Can only be purchased direct from Hunter website

Meet Hunter Burn

Taking the runner up spot for The Best Calorie Deficit Fat Burner of 2021 is Hunter Burn.

Aimed at high-flying, ambitious men, this premium supplement claims to support the demand of their work-to-lifestyle balance by:

  • Raising metabolism
  • Boosting energy
  • Controlling appetite
  • Blocking carbs


Hunter Burn

Top Hunter Burn Ingredients


Also known as konjac root, glucomannan is a soluble fiber found in South East Asia. According to scientific research, it should be effective at reducing appetite and providing feelings of fullness [10].

Matcha Green Tea

Rather than opt for the commonly used caffeine anhydrous, Hunter have chosen matcha green tea. The safe natural caffeine content found within it should offer energy support, including enhanced attention [11] and additional fat burning benefits [12].

Vitamin D

Including vitamin D is an intelligent move as it’s shown to promote testosterone production [13]. In turn, healthy male hormone levels may result in increased lean mass, reduced body fat, and better energy levels [14].

White Kidney Bean

Unlike almost-all lower-tier competitors, Hunter Burn contains white kidney bean. This smart ingredient should work to help block the digestion of carbs [15].

What are people saying about Hunter Burn?


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Final thoughts on Hunter Burn

Hunter Burn broke onto the supplement market with an impressive cutting-edge formula and the most potent servings we’ve seen. We recommend this complete fat burner for men who can afford its premium price.



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Burn Lab Pro Fat Burner


burn lab pro

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  • Streamlined formula
  • Contains thermogenic ingredients
  • May help with appetite control
  • Should support anabolic muscle growth


  • Zero caffeine content
  • Less mental support
  • Fewer physique protecting vitamins and minerals

Meet Burn Lab Pro Fat Burner

Taking third place is the stimulant-free Burn Lab Pro Fat Burner. Not only does this supplement promise to burn fat, it also claims to support muscle too.

According to its creators it is designed to:

  • Increase metabolism
  • Help fasted training results
  • Support muscle
  • Provide energy

Burn Lab Pro Fat Burner should deliver good fat loss results because of its smart stacking strategy and ample potency. It’s stimulant free, as the creators decided to focus on supporting muscle-building to burn fat.

Top Ingredients in Burn Lab Pro

HMB (ß-Hydroxy ß-Methylbutyrate)

HMB (ß-Hydroxy ß-Methylbutyrate) at 1000mg has been added to optimize fasted training results. This metabolite of the amino acid leucine should protect your physique by neutralizing muscle-damaging enzymes. Protein synthesis can also increase after taking HMB too [16].

Coleus forskohlii

Coleus forskohlii, has been shown to optimize hormonal cell messengers to regulate thermogenesis and testosterone [17].

Not only that, but it should also activate the enzyme protein kinase, which encourages lipase to enable fat breakdown [17].

Cayenne Pepper Extract

Another regulator of thermogenesis is cayenne pepper extract. Studies have shown this spicy powder triggers thermogenic reactions inside the body, raising metabolism [1].

Black Pepper Extract

The thermogenic efforts of Burn Lab Pro Fat Burner are also backed up by black pepper extract, which can increase bioavailability. This ingredient limits adipogenesis, which is the generation of new fat cells.

What are people saying about Burn Lab Pro?

  • – “For the price, this is the best value for money fat burner on the market. It is cheaper than the other premium supplements out there, not only that, we’d say the quality is a lot better too.”
  • – “This supplement may help give you a slight fat-burning edge, but it’s unlikely to make a huge difference. However, the included ingredients are safe and relatively mild, so it may be worthwhile to try out.”


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Final thoughts on Burn Lab Pro

Burn Lab Pro is a great stimulant-free option. Its streamlined formula is also better suited to people on a budget. It is an innovative, streamlined, and stimulant free option for men who want a different approach. We recommend it for additional muscle building support.


burn lab pro


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PhysiqueSeries Fat Burner by Transparent Labs



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  • Natural ingredient choice
  • Potentially offers additional support for mental stress
  • Alternative approach to appetite control
  • Three-pronged thermogenic approach


  • Premium-quality price tag
  • Capsules not vegan or vegetarian friendly
  • Newer product so not many testimonials

Meet PhysiqueSeries fat burner

Securing fourth position is Transparent Labs PhysiqueSeries Fat Burner. Featuring a nine-ingredient profile, it looks to support fat burning with a three-pronged approach.

Once consumed, this fat burner should:

  • Increase metabolism
  • Offer mental support
  • Increase clean energy and focus
  • Reduce hunger and cravings

Thermogenic compounds forslean, green tea extract, and synephrine should increase resting metabolism. This trident of heat-inducing ingredients may help raise calorie burn more than diet alone.

In fact, the caffeine content of each serving is only 120 mg. This may appeal to stimulant sensitive users.

Top ingredients in PhysiqueSeries Fat Burner

Green Tea Extract

One of green tea’s body-benefiting factors is aiding fat loss. Research has shown that EGCG’s inside this ingredient decrease fat synthesis, increase fat breakdown, and promote better glucose utilization [18].


This ingredient should offer mental support for your fat loss-journey. It does this by helping promote serotonin secretion.

Studies have linked 5-HTP to suppressing appetite in overweight dieting individuals [19]. Plus, people who take 5-HTP have been found to have lower carb intake and show fat-loss while displaying reduced appetite [20].

Forslean (10% forskolin)

Forskolin is included to stimulate the release of stubborn fatty acids from body fat. In turn, this should make the weight-loss process easier.

One study published in Obesity Research and Clinical Practice discovered Forslean supplementation decreased body fat while increasing lean muscle in obese men [21].


This is the active form of tyrosine and is a strong anti-stress amino acid. Some research has even shown it can lower stress during extended periods of consciousness, as well as after intense exercise [22] [23].

According to Transparent Labs this ingredient could help to reduce the mental challenges of being on a diet and may influence adherence.

What are people saying about PhysiqueSeries Fat Burner?

  • – “The Physique Series Fat Burner contributes to eliminating excess belly fat thereby promoting a physically fit and healthy body. Moreover, the stress relieving hormones additionally helps in controlling stress levels associated with losing weight and dieting.”
  • – “Although PhysiqueSeries does contains some decent ingredients, there are too many things missing for us to class it as one of the very best products out there at the moment.”


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Final thoughts on PhysiqueSeries Fat Burner

PhysiqueSeries Fat Burner features a complete, comprehensive formula to aid fat loss. Although it contains traditional thermogenic ingredients, it also offers mental support. For this reason, we’d recommend this to men who want to remove stress from dieting.



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  • Natural
  • Free from stimulants
  • No proprietary blends
  • Vegetarian friendly


  • Low caffeine (some may find this a con)
  • Expensive
  • Less physique support

Meet Leanbean

In fifth place is Leanbean – the female fat burner that has surprising benefits for men.

Created using 12 ingredients, Leanbean offers a rich formula to aid fat loss, as well as supplying numerous superfoods. And although it is marketed toward women – the ingredients inside can impact fat burning for both sexes.

Men who take Leanbean should experience:

  • Boosted metabolism
  • Suppressed appetite
  • Better blood sugar levels
  • Reduced inflammation

Top ingredients in Leanbean

  1. Konjac Fibre (Glucomannan)

Glucomannan is a dietary fiber extracted from the root of the Konjac plant. It has been well documented as an aid to weight loss thanks to its ability to suppress appetite [6].

  1. B Vitamin Complex

B vitamins can also aid in warding off tiredness during calorie restriction. It’s because of this they’re commonly associated with energy and motivation [24].

3. Zinc

Its inclusion in Leanbean however is more to do with its effect on weight loss. Studies have shown that zinc supplementation can improve BMI, heighten weight lost and improve triglyceride levels [25].

  1. Turmeric

Leanbean call this their healthy alternative to Caffeine Anhydrous, a potent stimulant. It won’t provide the same alertness and energetic qualities but has similar thermogenic capabilities [26].

Turmeric also contains a compound called Curcumin, which has anti-inflammatory properties. Therefore, this ingredient may offer recovery from exercise [27].

What are people saying about Leanbean?

Although Leanbean is tailored for females, there’s no reason why it wouldn’t be beneficial for men too. Many users report feelings of curbed hunger and better energy levels, helping them dominate their workouts.


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Final thoughts on Leanbean

We recommend Leanbean to men who want a holistic fat burner with a less aggressive formula. The ingredients do have relevant studies proving their worth, meaning it also has a high level of potential effectiveness. If Leanbean is in your budget and you’d prefer a subtle fat burning supplement – this might be it.




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Our #1 – Instant Knockout CUT



Our top pick is Instant Knockout Cut. If you’d like to purchase, simply click below!


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  1. Ludy, MJ et al. The effects of capsaicin and capsiate on energy balance: critical review and meta-analyses of studies in humans. Chem Senses. 2012
  2. Hursel R, Viechtbauer W, Westerterp-Plantenga M. Effects of green tea on weight loss and weight maintenance. A meta-analysis. Appetite. 2009;52(3):838. doi:10.1016/j.appet.2009.04.099
  3. Dulloo A, Duret C, Rohrer D et al. Efficacy of a green tea extract rich in catechin polyphenols and caffeine in increasing 24-h energy expenditure and fat oxidation in humans. Am J Clin Nutr. 1999;70(6):1040-1045. doi:10.1093/ajcn/70.6.1040
  4. Dulloo A, Seydoux J, Girardier L, Chantre P, Vandermander J. Green tea and thermogenesis: interactions between catechin-polyphenols, caffeine and sympathetic activity. Int J Obes. 2000;24(2):252-258. doi:10.1038/sj.ijo.0801101
  5. Goldstein E, Ziegenfuss T, Kalman D et al. International society of sports nutrition position stand: caffeine and performance. J Int Soc Sports Nutr. 2010;7(1):5. doi:10.1186/1550-2783-7-5
  6. Zalewski, BM et al. The effect of glucomannan on body weight in overweight or obese children and adults: a systematic review of randomized controlled trials. Nutrition. 2015; 31(3): 437-42
  8. Giesbrecht T, Rycroft JA, Rowson MJ, De Bruin EA. The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness. Nutr Neurosci. 2010 Dec;13(6):283-90. doi: 10.1179/147683010X12611460764840. PMID: 21040626.
  9. Sarris J, Byrne GJ, Cribb L, Oliver G, Murphy J, Macdonald P, Nazareth S, Karamacoska D, Galea S, Short A, Ee C, Birling Y, Menon R, Ng CH. L-theanine in the adjunctive treatment of generalized anxiety disorder: A double-blind, randomised, placebo-controlled trial. J Psychiatr Res. 2019 Mar;110:31-37. doi: 10.1016/j.jpsychires.2018.12.014. Epub 2018 Dec 8. PMID: 30580081.
  10. Zalewski, BM et al. The effect of glucomannan on body weight in overweight or obese children and adults: a systematic review of randomized controlled trials. Nutrition. 2015; 31(3): 437-42
  11. Einöther S, Giesbrecht T. Caffeine as an attention enhancer: reviewing existing assumptions. Psychopharmacology (Berl). 2012;225(2):251-274. doi:10.1007/s00213-012-2917-4
  12. Astrup A, Toubro S, Cannon S, Hein P, Breum L, Madsen J. Caffeine: a double-blind, placebo-controlled study of its thermogenic, metabolic, and cardiovascular effects in healthy volunteers. Am J Clin Nutr. 1990;51(5):759-767. doi:10.1093/ajcn/51.5.759
  13. Pilz S, Frisch S, Koertke H et al. Effect of Vitamin D Supplementation on Testosterone Levels in Men. Hormone and Metabolic Research. 2010;43(03):223-225. doi:10.1055/s-0030-1269854
  14. Tyagi V, Scordo M, Yoon RS, Liporace FA, Greene LW. Revisiting the role of testosterone: Are we missing something?. Rev Urol. 2017;19(1):16-24.
  15. Celleno L, Tolaini MV, D’Amore A, Perricone NV, Preuss HG. A Dietary supplement containing standardized Phaseolus vulgaris extract influences body composition of overweight men and women. Int J Med Sci. 2007;4(1):45-52. Published 2007 Jan 24.
  16. Holeček M. Beta-hydroxy-beta-methylbutyrate supplementation and skeletal muscle in healthy and muscle-wasting conditions. J Cachexia Sarcopenia Muscle. 2017;8(4):529-541. doi:10.1002/jcsm.12208
  17. Godard M, Johnson B, Richmond S. Body Composition and Hormonal Adaptations Associated with Forskolin Consumption in Overweight and Obese Men. Obes Res. 2005;13(8):1335-1343. doi:10.1038/oby.2005.162
  18. Grove K, Lambert J. Laboratory, Epidemiological, and Human Intervention Studies Show That Tea (Camellia sinensis) May Be Useful in the Prevention of Obesity. J Nutr. 2010;140(3):446-453. doi:10.3945/jn.109.115972
  19. Rondanelli M, Klersy C, Iadarola P, Monteferrario F, Opizzi A. Satiety and amino-acid profile in overweight women after a new treatment using a natural plant extract sublingual spray formulation. Int J Obes. 2009;33(10):1174-1182. doi:10.1038/ijo.2009.155
  20. Cangiano C, Ceci F, Cascino A et al. Eating behavior and adherence to dietary prescriptions in obese adult subjects treated with 5-hydroxytryptophan. Am J Clin Nutr. 1992;56(5):863-867. doi:10.1093/ajcn/56.5.863
  21. Godard M, Johnson B, Richmond S. Body Composition and Hormonal Adaptations Associated with Forskolin Consumption in Overweight and Obese Men. Obes Res. 2005;13(8):1335-1343. doi:10.1038/oby.2005.162
  22. Neri, D. F., Wiegmann, D., Stanny, R. R., Shappell, S. A., McCardie, A., & DL, M. C. K. A. Y. (1995). The effects of tyrosine on cognitive performance during extended wakefulness.. Aviation, space, and environmental medicine, 66(4), 313–9. Retrieved from
  23. Medicine, I., Board, F. N., Research, C. M. N., & Marriott, B. M. (1994). Food Components to Enhance Performance: An Evaluation of Potential Performance-Enhancing Food Components for Operational Rations. Washington, DC, United States of America: National Academies Press.
  24. Vitamins and minerals – B vitamins and folic acid. Published 2019. Accessed July 18, 2019.
  25. Payahoo L, Ostadrahimi A, Mobasseri M, et al. Effects of zinc supplementation on the anthropometric measurements, lipid profiles and fasting blood glucose in the healthy obese adults. Adv Pharm Bull. 2013;3(1):161–165. doi:10.5681/apb.2013.027  
  26. Di Pierro F, Bressan A, Ranaldi D, Rapacioli G, Giacomelli L, Bertuciolli A. Potential role of bioavailable curcumin in weight loss and omental adipose tissue decrease: preliminary data of a randomized, controlled trial in overweight people with metabolic syndrome. Preliminary study. Eur Rev Med Pharmacol Sci. 2015;19(21):4195-202.
  27. Chainani-Wu N. Safety and Anti-Inflammatory Activity of Curcumin: A Component of Tumeric (Curcuma longa). The Journal of Alternative and Complementary Medicine. 2003;9(1):161-168. doi:10.1089/107555303321223035
[Note: We do not get paid to feature any supplements in our review. However, SpotMeBro may receive a small affiliate commission if a purchase is made through our links. Find out more here]

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