An Overview on Fat Burners for Men

Fat burner supplements are a great addition to any fitness or weight loss regimen. They'll help you get the best results possible from your workouts and healthy diet. A good one will give you a little boost, so that you don't have to work out to the point of overexertion or implement an overly-strict diet.

New scientific research is published every year showing the effectiveness of safe, natural fat burning compounds. Nevertheless, not all of them are created equal. Not only are some more effective than others, but there are also a lot of factors that go into deciding on the right fat burner for you.

For example, do you want gentle energy or a powerful kick? Do you have any nutrient deficiencies that need addressing? Or, is there an underlying condition causing your weight problem?

For example, if insomnia and sleep deprivation have caused you to gain weight, then you'll see the best results if you opt for a fat burner that includes ingredients that improve sleep, such as magnesium.

5 Best Fat Burners for Men

In my opinion, the following are the 5 best options currently on the market that are specifically formulated for men. Each is a little different, taking a unique approach. Every man will see a product listed here that will work well for him.


Instant Knockout is a fat burner that was originally developed for pro boxers and MMA fighters. Made with all-natural ingredients, it will help cut your most stubborn areas of fat.

Instant Knockout is endorsed by pro MMA fighter Diego Sanchez as well as world-class MMA coach Greg Jackson.

Instant Knockout is made only with the highest-quality ingredients, with no cost-cutting whatsoever. It's made in FDA-certified and cGMP-certified facilities.

So, you know this is a pure, quality, and safe product.

The active ingredients of Instant Knockout are all natural and include:

  • Vitamin B6 - 250% DV
  • Vitamin B12 - 166% DV
  • Chromium - 82% DV
  • Zinc - 150% DV
  • Green tea extract
  • Cayenne pepper seeds
  • Piperine, an extract of black pepper
  • Glucomannan, a fiber extracted from the konjac plant
  • Green coffee bean
  • Caffeine

These ingredients all work together to increase metabolism, reduce appetite, reduce junk food cravings, and help you burn more calories when you work out. It may also help you build more muscle and increase your insulin sensitivity.

The makers of Instant Knockout provide a lot of legitimate, credible, and specific scientific studies to back up their claims for what the ingredients can do.

You can get a 1 month supply for a good price. The best deal offered is the 3 bottle deal. The company offers a 90-day money-back guarantee as well as worldwide shipping. They accept Visa, MasterCard, American Express, and PayPal. I love that you can use PayPal to buy this, since it's extra secure.


  • All-natural ingredients
  • Very scientifically supported
  • Secure payment options


  • Contains artificial color
  • The zinc content may cause nausea if taken without food

PhysiqueSeries Fat Burner and Stim-Free Fat Burner

The PhysiqueSeries Fat Burner from Transparent Labs is a good option if you want increased basal metabolism and clean energy. It contains no artificial sweeteners, artificial colors, artificial preservatives, or GMOs.

The ingredients are:

  • Caffeine
  • White willow bark extract
  • Cayenne pepper
  • Forskohlin extract
  • Green tea extract
  • 5-HTP, a precursor for the neurotransmitter serotonin
  • Synephrine HCI, also known as bitter orange extract
  • L-tyrosine, an amino acid
  • L-theanine, an amino acid

One bottle is a two-month supply.  You can see on their website that it is secured by Norton Shopping Guarantee, so your personal information will be safe. They offer worldwide shipping.

Transparent Labs also makes a stimulant-free version of this product. This version's ingredients list keeps it short and sweet with just forskohlin extract, rhodiola rosea, cayenne pepper, fucoxanthin (a pigment of brown seaweed), vitamin B12, acetyl L-carnitine, and 5-HTP.

If you have heart problems, blood pressure problems, or caffeine sensitivity, then you should opt for the stim-free version.


  • Affordable
  • Gentler, stimulant-free version available
  • Amino acids to preserve muscle


  • The regular version contains bitter orange extract, which is not recommended for people with heart or blood pressure problems.


The Ripped Freak hybrid weight loss supplement is made by the company PharmaFreak. It has a relatively short ingredients list, but it is well-formulated and high quality. Ripped Freak features the following natural ingredients:

  • Olive leaf
  • Sweet red pepper
  • Raspberry ketone
  • Green tea extract
  • Green coffee

These ingredients work together to give you energy, help you burn more fat, and reduce fat absorption. It doesn't contain any active ingredients that are artificial or synthesized in a lab.

The company that makes Pharma Freak had it clinically tested. The study showed that it is effective and has no side effects.

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However, although the study did not report any side effects, you still might have some. I noticed that it contains a whopping 350 milligrams of caffeine per single capsule! That's the equivalent of three 8-ounce cups of coffee, all at once.

So, if you are sensitive to caffeine Ripped Freak might be a bit too much for you. You may get caffeine-related side effects like headache and sweating. Because of the high caffeine content I also think that Ripped Freak would be best taken in the morning, and let it fuel your morning workout.

You can only buy Ripped Freak directly from the manufacturer if you live in Canada. If you live in the United States or elsewhere you will have to go through a third-party online vendor, which may drive up the price a bit.


  • All-natural plant based actives
  • Only 1 capsule per day


  • Some people may not tolerate the high caffeine content
  • Harder to find outside of Canada


Another great option for natural plant-based fat burners is Vintage Burn by Old School Labs. This supplement helps you burn fat while preserving muscle. It als‚Äčo gives you better mood, focus, and energy. You can't go wrong with an all-natural, vegan fat burner.

Vintage Burn has a similar formula to Ripped Freak, but with a lower caffeine content for a more gentle boost of energy. The formula contains:

  • Green coffee bean extract
  • Green tea extract
  • Raspberry ketones
  • Olive leaf extract
  • Bacopa leaf extract
  • Garcinia fruit extract
  • Forskohlii root extract
  • Chrysin (a naturally occurring compound in passionflower)
  • 150 milligrams caffeine
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Vintage Burn is on the more affordable side, especially when you consider its wide variety of active ingredients that make it well worth the money. 


  • Affordable
  • All-natural
  • Mild energy boost
  • Boost mood and focus


  • Doesn't include any synergistic vitamins or minerals


The Genius Burn product from The Genius Brand is a combined nootropic and fat burning supplement. It will help you lose fat while enhancing cognition, mental clarity, and mental performance.

This product is extremely well-formulated, and includes:

  • Ashwagandha
  • Withania somnifera root
  • Capsicum fruit extract
  • Gymnema sylvestre leaf extract
  • Panax notoginseng extract (Chinese ginseng)
  • Huperzia serrata extract
  • Aframomum melegueta seed extract
  • Theacrine
  • L-theanine
  • Gamma-Butyrobetaine ethyl ester (a nootropic)
  • Citicholine, a brain chemical associated with memory and other cognitive functions 
Genius Fat Burner - Thermogenic Weight Loss & Nootropic Focus Supplement - Natural Metabolism & Energy Booster for Men & Women | Thyroid Support and Appetite Suppressant w/ Gymnema Sylvestre, 60 Pills

The great thing about Genius Burn is that it provides powerful energy without making you hyper, causing a caffeine addiction, or building tolerance. Since it's caffeine free, it's awesome for stacking. You can take it with your pre-workout or morning cup of joe without overdosing on caffeine.

The Genius fat burner is able to do this because of three ingredients: Theacrine, ginseng, and L-theanine.

Theacrine is an energy-boosting molecule similar to caffeine. It works in the same pathways in your brain as caffeine does, yet does not form tolerance that makes you have to up your dose.

Ginseng is an herb that has been used for millenia for its energy and vitality. It adds to the energy provided by the theacrine.

Lastly, the L-theanine promotes relaxation without causing drowsiness, therefore taking the edge off of the theacrine and ginseng and giving you clean, gentle energy and mental clarity.


  • Non habit-forming, clean energy
  • Improves focus and mental clarity
  • Expertly-crafted formula


  • May be too subtle of an energy boost if you're used to high-caffeine fat burners

What You Need to Know About Fat Burner Supplements

The world of supplements is complicated. There are many hundreds of herbs, plant extracts, nutrients, amino acids, and nootropics out there. Throw in the fact that some ingredients are actually useless and you will see why it's crucial to do your research before deciding on what one to buy.

Do Fat Burners Really Work?

The short answer is yes! They really do work. However, not all ingredients are scientifically proven. Some fat burners are formulated with herbs that perhaps are used for fat loss in traditional Eastern medicines, but that have yet to be scientifically proven in clinical trials.

Though certainly some people will see success with these types of supplements, I always prefer to go the scientific route. That's why all five of the fat burners I've provided here have sound evidence to back them up.

That's not to say that traditional herbs aren't backed up by science. In fact, quite a few of them are! For example, ashwagandha is an herb used in Ayurveda (traditional Indian medicine) that has been scientifically proven to have many benefits.

Do Fat Burners Make You Lose Muscle?

A quality fat burner, in and of itself, shouldn't make you lose any muscle. Whether that's even physically possible depends on what kinds of ingredients it has. For instance, some of them work by making your body store less fat in the first place, while others work by increasing your metabolism as a whole.

It's these fat burners that work by increasing your metabolism that you need to be careful with. When your metabolism goes up, and you don't compensate by eating more calories, then your body doesn't distinguish between burning fat and burning muscle.

So, if you're taking a metabolism-boosting fat burner, such as one with a high caffeine content or strong stimulant effect, you need to keep working out just the same as before, if not a little extra. By keeping all your muscles in use, your body will learn to only burn fat.

Not working out is pretty much the only way that a fat burner supplement would make you lose muscle. Always remember that these supplements are meant to be used with diet and exercise, not as a replacement for them!

Are Fat Burners Dangerous?

As a whole, no. Fat burners are safe to take. Some of them use to contain dangerous compounds in decades past, but these ingredients have been outlawed. Any legal product is safe for the general public to take.

There are a couple exceptions, however. If you have a medical condition, especially a condition related to the heart, blood, kidneys, or liver, your body may not be able to tolerate certain supplement actives.

Also, if you're taking any type of prescription medication there is the possibility of your medication interacting with the supplement. If you have a medical condition or are taking medication, check with your doctor to see whether the fat burner you're interested in is safe for you to take.

So, What's the Best Fat Burner for Men?

The ones I listed earlier are, in my opinion, the best ones currently on the market. Given their high quality formulation and great reviews, it's easy to see why!

Though, you might be wondering which of these five fat burners is the very best. Honestly, that really depends on your needs. They are all basically the same high quality but are suited for different things.

If you want to boost testosterone to help you keep muscle mass, then I recommend Instant Knockout. It has zinc and other nutrients that will help your body maintain testosterone levels naturally. Instant Knockout is also great if you're eating at a caloric deficit, because it has a lot of vitamins and minerals that you might be needing more of.

If you want a high-caffeine fat burner to use before your workout, definitely go for Ripped Freak hybrid fat burner. The caffeine plus the all-natural plant extracts will help you be more active all day, even after your workout.

If what you are most interested in is preserving the muscle mass you've worked so hard to build, opt for Vintage Burn. Preserving muscle is one of its main features, and it does so with all-natural botanical extracts.

Now, it might not necessarily be "the best", but my personal favorite is Genius Fat Burner. It gives you a boost of clean energy while being caffeine-free. This means not only is it non-habit forming, but I can also combine it with other supplements that contain caffeine, my pre-workout, or my coffee, depending on the day.

Fat burners are a must-have for men who are passionate about fitness. Whether it's for competitive sports, bodybuilding, or just general health, a great fat burner will help you reach your goals.

This list I've compiled has something for everyone, so be sure to check them out and give them a try. You'll wish you started taking a fat burner sooner!

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