Best Fat Burners for Men

Written by John Dixon

Fact Checked by: Roger Thomas


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Fat burners represent a fantastic weight loss aid for men and in this post we will be taking a look at the best fat burners for men.

They are not magic pills – far from it. You cannot take them and simply expect the weight to evaporate overnight. It will take time. And, as with any weight loss regime, it will require a calorie deficit for any fat loss efforts to be viable. You will need to maintain a daily deficit of 500 calories (that is, eat 500 fewer daily calories than your body needs to maintain its current weight) in order to lose about a pound per week. A deficit of 1000 calories will have you losing around two pounds per week.

Most of your deficit will be made up through your diet – simply eating less. Some will come from exercise – doing more to burn more.

However, though this is the main area from which your weight loss should come, it can be slightly sub-optimal. It can be hard to maintain, too, as energy loss and hunger pangs kick in. This is where fat burners really become useful. They will simultaneously burn more fat, release more energy, and keep you feeling fuller for longer, all through a clever combination of natural ingredients.

Our Best Fat Burners for Men

The list below represents some of the top fat burners on the market.

Some fat burning supplements will be better for men than women, and vice versa. These will generally be ones that take aim at testosterone or estrogen production. However, the vast majority of supplements are appropriate and useful to all genders. This list falls into the latter category on the whole. We’re talking mainly about male weight loss, here, but women will be able to use any of these fat burners with great success too.


phenq 3 bottles

Let’s start with one of the most popular, most dependable fat burning supplements for men – PhenQ. It is made by one of the foremost supplement manufacturers in the world, Wolfson Berg, a company we know well and have featured on PathMed a fair amount thanks to their rock solid reputation and quality supplement offering.

PhenQ brings about greater rates of thermogenesis – fat burning for energy – as do most male fat burners. It’s a common way of doing things in the weight loss supplements game.

Thermogenesis is a completely natural process that all our bodies go through all day. Fat burners like PhenQ simply intensify the process.

They do this with the help of a rogue’s gallery of natural ingredients. Again, there are certain compounds we will see time and again in this kind of product. In the case of PhenQ’s formula, we are looking at a few powerful ingredients which combine to allow you to burn fat more effectively whilst reducing new fat cell production. These include niacin, chromium picolinate, calcium carbonate, nopal, l-carnitine fumarate, and the stars of the show, capsicum extract, Lacy’s Reset, piperine extract, and caffeine anhydrous.

These ingredients come from a background of intense scientific research, with a wealth of data to prove their efficacy. As well as allowing you to burn more fat, they will aid in satiation. This means that your appetite will be lower, and you’ll experience fewer cravings. The caffeine will give you a much needed thermogenic spike and energy boost.

As stated in our PhenQ review, this supplement can make you more energetic, with greater mental clarity and a heightened mood. Everything is natural and completely vegan friendly, and everything is well-researched and backed up.

  • Ingredients are all natural and vegan friendly
  • No side effects
  • Fantastic body of research behind it all
  • Very effective fat burner
  • Stops new fat cells from being created
  • Suppresses the appetite whilst elevating mood and energy levels
  • Caffeine contents might not be good for all users

PrimeShred Male Fat Burner

prime shred fat burner

PrimeShred is another potent supplement aimed at maximizing fat loss, largely for bodybuilders and physique competitors (though it works well for anyone looking to shed a little extra weight). Any athletes looking to lose a little weight whilst maintaining high muscle mass and training hard at the gym would do well to look into it.

Each serving contains a lot of the high-potency, natural ingredients that we will often see in this list. They are all delivered in high doses. In fact, PrimeShred bills itself as the most up to date, cutting edge formula for fast, effective fat burning. Though this might be overstating the case a bit, it’s not an entirely unjustified claim.

All their ingredients are contained in dosages used in the clinical studies on which their work is built. These ingredients include things like green tea, green coffee, caffeine, bioperene, DMAE, L-tyrosine, L-theanine, cayenne pepper, and B vitamins. Together, these will optimize your fat burning potential whilst giving you plenty of energy and antioxidants for you to train and recover at your best.

Ingredients are all natural, as is everything on this list, and PrimeShred’s capsules are all suitable for those following a plant-based lifestyle. They really are everything a growing boy needs, with nothing nasty added in.

  • Their ingredients are all highly effective
  • Doses are perfectly optimized
  • Suitable for vegetarians and vegans
  • Great for explosive workouts and active lifestyles
  • Caffeine isn’t appropriate for everyone, especially in the quantities offered with PrimeShred
  • May initially cause gastric discomfort


phen 24 bottle

Our next men’s fat burner, Phen24, is a particularly clever offering. Where most fat burners are a daytime business, ramping up fat burning potential and giving you plenty of energy during daylight hours, Phen24 goes a little deeper. It comes in two parts, one for use during the day, one for use at night.

The first part, the daytime pill, is exactly what you would expect from anything on this list. It is designed to give you a better rate of fat burn, to halt the creation of new fat cells, to make your calorie deficit easier to maintain, and to give you a bit more energy.

With this in mind, daytime ingredients include various stimulants and thermogenesis inducing ingredients. These include the likes of caffeine and guarana, alongside micronutrients like iodine, zinc, and copper known for promoting healthy energy levels.

Then there are the night time pills, designed to allow you to sleep whilst still burning fat in an efficient manner, and designed to stop midnight snacking tendencies. It includes glucomannan.  Glucomannan is a great fiber for giving lasting fullness and a boost to your digestive health. Ingredients such as thiamine, chromium, pyridoxine HDL, and ascorbic acid should boost metabolic health.

  • Phen24 is very clever, giving you round the clock fat burning optimisation
  • Ingredients will allow for faster fat burning and lasting fullness and
  • Should help to stabilize metabolic and blood sugar rates
  • The caffeine may not be suitable for all users
  • It can get fiddly the more components you add to any supplement regime

Instant Knockout 

instant knockout fat burner boxes

There are a few sports specific fat burners out there that nevertheless have very wide ranging applications. One example of such is what we have here with Instant Knockout. It was originally developed for MMA fighters and professional boxers, with the aim of giving them the high-octane energy they need to carry on being explosive and powerful even in the depths of a calorie deficit.

If you’re a fighter looking to lose a bit of weight, Instant Knockout can be a valuable ally. It can also be a great ally to anybody more generally looking to maintain an active, athletic lifestyle whilst cutting down the body fat.

It works by both reducing appetite and boosting metabolic rates, as most of the prodcuts on this list do. Then there is a fair amount of added stimulant – mostly from caffeine, with a whopping 350 milligrams of the stuff – for improved mental clarity and higher energy levels (much needed for those looking to spar). Just be aware that if you are opting for Instant Knockout that these are pretty high caffeine levels and taking for a prolonged period of time might not be wise – a few months however is likely not going to be an issue however.

Instant Knockout uses all-natural cayenne pepper, black pepper extract, green tea extract, and vitamins D and B to heighten thermogenesis rates.

It should also help to improve insulin sensitivity. This will keep energy crashes at bay, halt the worst of your cravings, and make Instant Knockout perfect for diabetics looking to keep stable during training.

Instant Knockout capsules are also entirely vegan friendly.

  • Very high caffeine kick for extra energy
  • Great pre-workout supplement
  • Ingredients are fully natural
  • It is suitable for vegans
  • Solid list of ingredients promises thermogenesis and weight loss
  • The high caffeine content may not be suitable for all users


phengold 3 bottles

Finally, we have Swiss Research Labs’ PhenGold, a very popular, very potent fat loss supplement that is perfectly suitable for men.

PhenGold stays on script with the rest of this list, using all-natural, well-researched, high-quality ingredients. All together, these ingredients make for a solid formula. It should improve metabolic processes in the body and support healthy weight loss.

Where some products focus more at stimulation or satiation in combination with thermogenesis, PhenGold pretty much sticks to ramping up metabolic rates. It aims to improve energy levels overall by speeding up the fat burning and energy usage. This in turn should lead to lasting clarity and fairly even energy levels, rather than the spikes and dips associated with high caffeine and guarana contents.

This isn’t to say it slacks on the stimulants – far from it. It contains green tea extract, a high dose of 225 milligrams of caffeine, and cayenne pepper. This should all combine to increase energy levels and metabolic rates. However, it also includes 150 mg of the nootropic dimethylaminoethanol, which is where the magic happens. This should lead to improved brain function and mental clarity. At the same time, the l-theanine included will relieve stress symptoms, once more keeping your mind clear.

PhenGold is completely vegan-friendly and rounds of our top male fat burner nicely.

  • Speeds up the metabolism very ably
  • Improves and evens out energy levels
  • Aids in mental clarity
  • There are some good multi-buy discounts
  • Not much by way of appetite suppressing/ satiation
  • Caffeine content may be unsuitable for some

If you still aren’t convinced whether a thermogenic fat burner is for you then read on as we answer some frequently asked questions to help you choose the best option for you.

Do Fat Burners for Men Work?

The name ‘fat burner’ is a bit misleading. It makes them sound like some kind of magical potion, like something that is too good to be true. Fat burners do not magically burn through fat – this isn’t what they are for. What they do is give you the final ten percent. They make your weight loss far more efficient, raise your energy levels as you go through a calorie deficit, mildly raise the amount of fat you get through, and keep hunger pangs and cravings at bay.

In this regard, they work very well. They are amongst the best weight loss tools going. An intelligently designed fat burner can work incredibly well for anyone.

How To Choose Good Fat Burners for Men

The items on our list are amongst the best fat burners for men that money can buy. If you like the look of any of them, go for it and invest in them. They will serve you very well. Otherwise, practice some caution as you look for fat burners – there are myriad ‘weight loss cures’ on the market. Plenty of these unscrupulously bill themselves as ‘fat burners’. Most of them are a waste of money. Some are dangerous.

The main thing you want to look out for when choosing a fat burner is the ingredients list. This is where we always start. What is included, and in what doses? There are plenty of compounds you would expect to see in some form. We have seen most, if not all, of them in our list: things like caffeine, l-carnitine, capsaicin, vitamin B6, green tea extracts, glucomannan, and cayenne pepper. If these make it into a product in useful doses, the product will probably work quite well. Look at what the doses are measured in. Compounds such as caffeine and cayenne pepper – the larger, key ingredients, should be measured in the tens or hundreds of milligrams.

With this in mind, if a product doesn’t give you an ingredients list, don’t buy it, ever.

The wider health and fitness community is often a good resource, too. Reviews are very helpful and very easy to come by. Testimonials from users will tell you everything you need to know. If a product has thousands of people saying it doesn’t work, then it probably doesn’t work. If it has legions of people who swear by it and say it helped them to achieve their goals, it’s worth looking into.

Look for reviews wherever you can. Companies’ own sites can be a good place to look, though watch out for bias. Buyer sites like Amazon will have plenty of good information and reviews from past customers. Then there are the people like us – we are independent reviewers who give the unvarnished truth.

What To Avoid When Buying Fat Burners for Men

As with many supplements, there are good choices, and there is snake oil – useless ingredients that do nothing but waste your money. You want to make sure that you are buying products that are proven to work.

To know that it will work, you will need to see a supplement’s ingredients list. If something doesn’t list all of its ingredients don’t buy it, as above. You should at least be able to get a list of active ingredients. Also steer clear of anything that doesn’t contain the active ingredients mentioned in this list at any point – they really are required for something to work.

However, uselessness isn’t the worst of our concerns. Some supplements will be actively dangerous or unhealthy to take. Check for health warnings, consult your medical provider if you’re unsure about a supplement, and absolutely stay away from the following ingredients:

  • Dinitrophenol (DNP) is a heavy hitting metabolism booster that can be fatal. It is also highly illegal, so if you come across a product claiming to contain it, report it to the relevant authorities. Do not be tempted to buy.
  • Ephedra increases your blood pressure and heart rate as well as helping you to lose weight. Increases to both will put you at risk of chronic conditions such as heart disease and stroke.
  • M-synephrine also increases blood pressure and heart rate, though less noticeably than ephedra. It can be safe enough by itself but can be very dangerous when combined with stimulants such as caffeine. It can also cross the blood-brain barrier, so you really don’t want to be putting it in your body. It’s also often sold as p-synephrine or o-synephrine, so be careful of these, too.

Further FAQs

Which fat burner is most effective?

PhenQ and Phen24 have fantastic reputations for helping people to lose unwanted body fat as part of a healthy nutrition and training plan.

Do You Have Any Weight Loss Tips for Men?

There are a few things you can do to maximise your weight loss efficiency. Firstly, you should include plenty of protein, healthy vegetables and other fiber sources, and drink more water. You should also cut down on refined carbohydrates like sugar and white flour. Intermittent fasting alongside fat burning supplements has been shown to be particularly effective for weight loss.

What fat burners do bodybuilders use?

Natural bodybuilders use products like those in our list. Enhanced bodybuilders (i.e. those who abuse steroids and other non-natural products) use a dangerous steroid called clenbuterol. However, there are plenty of natural steroid alternatives that can help you to retain a lean physique.

Are fat burners worth it?

Yes. Though evidence is patchy in some areas, plenty of the ingredients included in common fat burners have been shown to work. In particular, caffeine, cayenne pepper and glucomannan have been heavily researched and been shown to be effective.

What drink helps burn fat?

Water is a great weight loss tool as staying properly hydrated has been linked to weight loss. In addition, as protein has also been linked to weight loss, whey and soya protein shakes can be very useful. Finally, anything with caffeine can help, so moderate amounts of coffee and green tea are a good idea.

How can I reduce my stomach fat?

You reduce stomach fat by reducing overall body fat. This means following a calorie deficit, taking part in an active lifestyle, and following all the advice above. Eat plenty of protein, healthy vegetables and other fiber sources, drink water, protein shakes, coffee and green tea, and try one of the fat burners from our list. It isn’t possible to reduce fat in one targeted area so you will need to aim to reduce overall body fat in order to reduce stomach fat – as the stomach is an area that men tend to increase fat in easily it can also be hard to reduce quickly.

What causes a lower belly pooch?

Excess body fat combined with a propensity to carry weight in the abdomen, a lack of abdominal musculature, and poor posture all contribute to a pot belly. Strengthen your core and maintain good posture – exercise systems like yoga and Pilates can help, here. In addition, losing overall body weight will reduce the amount of fat carried around the belly.

Our Overall Top Pick

Supplementation is highly personal – it is inherently individualistic. What works best for some will be different to what works best for others. We all have different bodies, goals, and lifestyles. For instance, if you struggle for energy, but really like to train hard, something like PrimeShred might be perfect for you. On the other hand, if you find yourself growing mentally sluggish on a weight loss regime, the nootropics included in PhenGold might be better suited to your needs.

However, we need a starting point, a product that will work well for everyone, that is of unparalleled quality, and that is firmly rooted in the science underpinning its efficacy.

For us, this is PhenQ. It is hands down the best far burner for men we have been able to find.

PhenQ has something for everyone – it is effective without being overly specialist, so that anyone can benefit from it. It is also about as researched as anything we have ever reviewed. Everything about it is driven by high quality research and reliable data.

It will help you to burn excess fat, improve your energy levels, stay feeling fuller for longer, and ultimately achieve your goals more efficiently and more comfortably.

Written by John Dixon

John is a personal trainer and part time (although he might say full time) writer here at PathMed. He uses his knowledge of fitness and physiotherapy to deliver real insight in to our reviews and health guides.

John’s military background also brings a real-life perspective to his work.