Best Fat Burners

Our PT and nutrition expert James Dixon examines the best fat burners available to buy in the UK. Find out below which is most suitable for you.

The only real way to sustain long term weight loss or management is to sort out your caloric and macronutrient intake – you need to eat less than you use to lose weight, and exactly balance what you lose to maintain the same weight.

This being said, there are some fantastic products out there that you can think of as the cherry on the top when it comes to gearing your lifestyle towards weight loss. Fat burners are amongst the top echelon of dietary weight loss aids.

They won’t cause you to lose weight in themselves, but they will make it far easier to maintain a caloric deficit and can ramp up your metabolism to make it more efficient at burning fat.

If you’re looking to lose weight and want to maximise fat burning efficiency as part of a balanced diet and active lifestyle, I would thoroughly recommend using a high quality fat burner to give your body the last little kick it needs and today we are rounding up the best fat burners available in the UK after a thorough period of testing.

Our Top Fat Burners

Let’s take a look at the best fat burner supplements available to buy in the UK.

PhenQ

Having assessed a wide range of fat burners, PhenQ is the one that takes the top spot on our list. Compared to some of the others listed, it is a relatively new product which the manufacturers like to refer to as five powerful weight loss pills in one.

It’s actually a very cleverly designed, simply made formula that I really like. It takes a multi-prong approach to aiding with your weight loss and has thus far helped thousands of people to achieve their goals. This kind of thing has been done before, but I can’t think of a single example where everything has been so comprehensive.

Essentially, PhenQ simultaneously boosts your metabolic rate whilst acting as an appetite suppressant, meaning that users won’t be tempted to overeat. The body’s ability to create new fat will also be impeded. To cap it all off, PhenQ aims to raise mood and energy levels, thus undoing some of the side effects which are perhaps harder to live with.

The main fat burning properties come from improved thermogenesis, raising the amount of fat being burned more generally every day. You will end up using more calories to do anything – including thinking and breathing – if you can ramp up thermogenesis like this.

Everything involved in PhenQ is rigorously tested and evidence based – this should be a given, but in the supplement industry it really, really isn’t. The formula itself is well mixed, giving a potent combination of trusted favourites such as capsicum powder, chromium picolinate, caffeine, nopal, and l-carnitine fumarate (many of which will be present in other products as we travel through this list).

It really is a top tier fat burner, representing a fantastic supplementary tool in anyone’s weight loss arsenal and without a doubt is one of our top picks and a personal favourite of many on our team. It will suit both men and women alike.

For best results and to take advantage of the bundle pricing we’d suggest opting for at least a 3 month supply – and after 60 days if you see no impact you can make use of the money back guarantee – but the chances are you’ll be entirely happy with the results.

Check The Best Deals On PhenQ

Burn By Capsiplex

A relatively new product to the market, Burn by Capsiplex takes a multi-faceted approach to its role as a fat burner. Just a quick look at the ingredients list and it will become clear to you that it focuses on increasing metabolic rate – but that’s not all.

It also aims to suppress appetite and give you more energy as you look to drop in to a caloric deficit to lose weight. These two additional benefits and the ability of Capsiplex Burn to actually deliver on them are the reason we have selected this supplement as our overall number one fat burner.

It literally ticks every box. The inclusion of Capsimax, green coffee, green tea and caffeine anhydrous are all powerful metabolism boosters and will combine to help you burn an extra 50-100 calories per day. So far, that’s pretty standard stuff.

You also get a vitamin B complex made up of vitamin B3, B6 and B12 which will boost energy and mental clarity – combatting the dreaded brain fog that often accompanies a caloric deficit.

Innoslim and Capsimax also combine to act as appetite inhibitors. Other than the low energy that comes from under-eating, it is often the desire to eat that derails any kind of calorie deficit or cut. Burn by Capsiplex takes care of this for you.

In our testing, we found Burn to be the most easy to live with of all the supplements we used. A 60 day testing period saw our tester lose weight at a level associated with the calorie restriction they were under, but they told us the ease of undertaking the daily calorie restriction was much higher than usual.

The only real negative to Burn is the amount of caffeine it contains. With 200mg of caffeine anhydrous you will want to keep a careful check on any additional caffeine you consume. Anyone sensitive to caffeine will likely do better to look at Trimtone which has around half the amount of caffeine as Burn does.

We’d suggest opting for a 3 month supply (and take advantage of the 3 bottles for the price of 2 offer) which makes Burn better value for money, with 3 months being a good marker for progress. 3 months for a calorie deficit is enough for most people and if you do need to cut further it might be a good idea to eat at a calorie maintenance level for a month before starting another 2-3 month cycle.

However long you opt to take Burn for, you should find just about the best results from using it as you can get from any natural fat burning supplement.

Check Best 3 For 2 Deals On Burn By Capsiplex

TrimTone (For women)

TrimTone is an all-natural fat burning supplement geared towards women.

I have a slight issue with this. Though some supplementation does need to be different for men and women, more tailored to their differing genetics and hormonal needs, I can’t see why fat burners need to be (except as a form of marketing.)

This doesn’t undercut TrimTone’s efficacy. It’s just that I don’t know why it’s aimed at women – men will benefit from it just as much, as many women will benefit from plenty of the offerings aimed at men.

Far from disputing TrimTone’s efficacy, I have to say that I was really impressed with this product.

As with most products on this list, its primary goal is improving thermogenesis and raising your metabolic rate. It also helps to reduce hunger pangs and keep your energy levels up. It contains plenty of caffeine, which as we have seen acts both to boost your metabolism and raise your energy levels, at least temporarily.

Glucomannan is one of the key ingredients to TrimTone’s success. It is a dietary fibre that has been scientifically proven to aid in appetite suppression, hence weight loss. It expands in your stomach when it absorbs water, making you feel fuller for longer (actually a bit bloated if you overdo it, so handle with care and don’t exceed recommended dosing.)

Glucomannan is also good for controlling your blood pressure, cholesterol and glucose levels, all of which are often closely tied to weight loss.

TrimTone also uses Grains of Paradise (Aframomum Melegueta). This is a great herb for improving thermogenesis. Coming from the same family as ginger, it has a lovely, spicy, peppery flavour with almost citrusy notes, so is quite good in everyday cooking. As a compound in this supplement, it helps to stabilise blood sugar levels, decreasing hunger pangs and energy crashes, and allowing for greater insulin sensitivity. It also acts to increase energy levels, boost your mood, and ultimately burn more calories. It also activates brown adipose tissue, which are the cells we’re looking to diminish in order to lose weight.

As a side note, TrimTone claims that this makes it able to hit even the most stubborn areas of fat… this isn’t a lie at all, but it’s such an oversimplification that it’s actually kind of no longer true.

If you’re down to the last few pounds of weight loss needed and you stall, unable to shift any more, a fat burner will be great. If you want to focus on fat loss, great. However, taking one won’t magically allow you to target any specific area for weight loss – where you lose weight will depend far more on genetic factors than anything taken in exogenously.

Be wary of taking this kind of claim too much to heart.

TrimTone also includes trusted favourites like caffeine, green tea, and green coffee in its formula and is great choice – whether you are male or female!

Check Latest Deals On TrimTone

PhenGold

The battle for top spot in our fat burner testing comes down to PhenGold, Burn by Capsiplex and PhenQ.

PhenGold has a similar thermogenic ingredient profile to PhenQ but takes a slightly different approach to how it supports the user. In fact, we really like the approach that PhenGold takes.

In addition to the thermogenenic enhancing ingredients it contains, it also has a clear focus on mood, energy and concentration – three things that can be found to be lacking when you undertake any kind of calorie deficit. Essentially, it achieves this by including some top tier nootropics as part of its blend.

Like PhenQ, PhenGold is fairly reliant on caffeine to create a heightened rate of thermogenesis – with 225mg of caffeine anhydrous included per serving. This is in addition to green tea extract and green coffee which also contains some caffeine content. The latter two are also included for long lasting energy – which feeds in to the whole concept of PhenGold.

You also get a very healthy dose of 200mg of cayenne pepper – one of the most well known and respected thermogenic compounds. You could consume this through your diet, but 200mg daily would be hard to achieve.

These ingredients alone should have a decent impact on your metabolic rate and thus help to burn potentially an extra 50-100 calories per day. This isn’t huge and you will of course still need to be in a calorie deficit, but it’s a bonus and compounded over time, this could be 3000 calories extra per month – just for taking the supplement.

As mentioned above and in our PhenGold review, it sees you right in terms of your mood and energy levels. This is where it really earns its place in our top 3 fat burners. Although it doesn’t give too much in the way of appetite suppression, it goes a very long way to dealing with the other negative side effects associated with diets.

Namely – lethargy, brain fog and lack of motivation.

The inclusion of 4 or 5 ingredients often found in nootropics means that you are going to mentally manage your cut much better. A solid vitamin B complex, 150mg of DMAE, 350mg of L-Tyrosine and 250mg of L-Theanine are all very welcome additions.

Having tested PhenGold myself I would recommend it as a highly effective fat burner. You can take all three pills before breakfast each day and be set up without the need to remember to take them through the course of the day. Alternatively you can spread them out through the day if you wish, but be careful not to take them too late in the day as you might struggle to sleep.

Unless you are particularly adverse to caffeine then PhenGold is a top fat burner and the one we’d recommend.

Check Best Deals On PhenGold Here

Capsiplex Trim

Next on our list is our best fat burner for women. We say it’s the best for women because Capsiplex market it that way and the formula is slightly different to their Burn version (which is aimed at men). The core formula remains the same however, but what you do get with Trim is a much more targeted vitamin and mineral complex which is designed specifically for women.

Like Burn, Trim by Capsiplex relies on their Capsimax and Innoslim compounds to fire up the metabolism and curb the appetite. The formula is very well designed and what helps Trim to stand out amongst the plethora of other fat burners on the market is the focus on hormones and hormonal balance. It does this be including some very carefully selected vitamins and minerals with Iron in particular being a worthwhile inclusion.

You get a comprehensive vitamin complex with vitamin B6, B9, C and D included in Trim – and of course you still get the caffeine content to give you the energy that can sometimes be lacking when you are undertaking a calorie controlled diet.

In fact, energy is one of the key words I’d associate with Capsiplex Trim. Not only do you get the caffeine anhydrous, but you also get clean energy from green tea and green coffee extract as well as L-Arginine that helps to keep your blood sugar levels under control – again, this is often problematic when restricting calories.

Like Burn, you can buy Trim at three different bundle sizes. Single bottles, a two bottle bundle and a three bottle bundle. Each bottle will last one month and to get the best results I’d suggest opting for at least two to three bottles.

At the time of writing, you can order here to claim two free bottles on three bottle orders – making Trim incredibly cost effective for mid-long term use considering the quality of ingredients contained in each capsule.

The serving size is also pretty hefty with 3 capsules per serving. This is to be taken 30 minutes prior to exercise on workout days and before breakfast on non-workout days. The obvious caveat here is if you work out in the evenings then it’s best to take Trim no later than 1pm to make sure the caffeine doesn’t interfere with your sleep pattern – the last thing you want as sleep is crucial to weight loss.

Like all the fat burners I reviewed, you will need to be in a calorie deficit for Trim to work. It’s not a magic pill. But, you can expect to squeeze a little more calorie expenditure per day (50-100 is likely) – but the key point is that Trim makes the whole process easier by helping to prevent cravings, balancing blood sugar and giving you greater energy – three things that can derail a diet if not addressed.

Overall, Trim is an excellent fat burner and is ideal for women – so long as you are not averse to caffeine, it’s a winner.

Check Best Bundle Offers On Capsiplex Trim

Clenbutrol

Clenbutrol is another incredibly potent, natural fat burner that is completely legal and safe to use for most people. With just 4 natural ingredients, it is one of the simplest fat burners we tested – but can be stacked with other supplements depending on your exact aims.

Brought to us by Crazy Bulk, Clenbutrol is very much aimed at those looking to burn fat but also minimise muscle loss – something that really anyone should be aiming for.

Like all fat burning supplements, you will need to be in a caloric deficit to see results, but Clenbutrol aims to make the process much easier to manage and thanks to its thermogenic properties, it can also make the whole process much more efficient.

One of the biggest downsides of any cutting cycle is the feeling of lethargy and energy dips that occur. This makes it tough to maintain and even hard to feel motivated to increase or even maintain your usual activity levels – Clenbutrol aims to address this issue head on.

The main ingredient that tackles the issues with energy is Guarana Extract (that contains 22% caffeine) – with 342mg per serving. This is a very adequate (and pretty high) dose that comes from Paullinia Sorbilis seed and has a strong thermogenic effect and provides instant and long lasting energy.

This has a few benefits, with the main ones being that it works as an appetite suppressant and is thought to prevent the body storing excess energy as fat. In addition to this, Garcinia Cambogia is thought to lower cholesterol and keep blood sugar balanced – which is not only good for your health but also good at preventing those blood sugar crashes which can lead to snacking.

You also get a very healthy dose of 63mg of Vitamin B3. It has a wide range of benefits but the key ones we are interested in here are linked to improving blood fat levels. There have been a number of studies that show Niacin (Vitamin B3) can increase your HDL (good cholesterol) and reduce your LDL (bad cholesterol). It also helps to eliminate brain fog which is crucial for a good quality fat burner.

All in all, Clenbutrol is an excellent fat burner that works well when taken prior to a workout. So for those who want to maintain or build muscle during their cut, this is the ideal choice and is highly effective in helping you shed the body fat.

Check Latest Deals On Clenbutrol

Phen24

Phen24 is not only one of the best fat burners available to buy in the UK, it is also one of the cleverest. It packs some of the most potent natural ingredients designed to provide maximum appetite suppression whilst giving your body (and mind) the energy that can sometimes be lacking during a calorie deficit.

Now, let’s not get carried away. Like any of the fat burners on this page, Phen24 is not going to make you miraculously shred all body fat without any effort on your part – but it will make the whole process much easier and with such an impressive set of ingredients, it is also highly likely to improve your thermogenic fat burning potential – some of which is done whilst you sleep!

There is one thing that sets Phen24 apart from any other supplement we tested – and that is that it comes with two separate pills that perform two different functions – one is for night time fat burning, and the other is for day time fat burning.

One of the many pitfalls for people who are on a calorie deficit is to snack in the evening. This is not inherently bad, but if you have already had your daily calorie allowance and are left feeling hungry then this is the time that many people will start snacking – and thus reducing their calorie deficit – leading to less weight loss.

But PhenQ has an evening pill that not only increases your metabolism whilst you sleep, it also suppresses your appetite during the evening which can help with the issue of snacking. Most fat burners cannot be taken in the evening due to them containing too many stimulants which would in turn impact on your sleep.

Getting the right amount of sleep is crucial to weight loss and so this one thing really makes Phen24 stand out. On top of this, the morning pill really kickstarts the metabolism and gives you slow release energy to keep you performing at your best during the day.

The daytime pill does contain caffeine (so isn’t stimulant free) but we like this, especially as it’s backed up with guarana and cayenne which are both well known for their metabolism boosting properties. At night you get glucomannan which is great for providing that feeling of fullness and griffonia and choline which both have great sleep enhancing properties as well as having plenty of evidence to support them as fat burners.

There are some great bulk buy deals on Phen24 and if you can stretch to a 3 month supply then you should see some great results when combining this supplement with a calorie deficit and well balanced diet.

Check Latest Deals On Phen24

PrimeShred Fat Burner

Let’s continue with a fat burner aimed at men, in the form of PrimeShred. This falls into the same trap as the likes of TrimTone – I can’t see anything in the ingredients list that would make it anything less than perfectly effective for women. Realistically, it’s a matter of branding – I suppose the thinking is that women want to be trim and toned, whilst men want to shred, primally…

It’s a load of nonsense. However, this isn’t to detract from the quality of the product itself. It really is quite hardcore.

PrimeShred have aimed for something of a triple threat, here, with a three-pronged assault on your fat reserves.

Firstly, PrimeShred works as a metabolic booster, increasing thermogenesis, so that you will always be burning an optimal number of calories, no matter what you’re doing. As well as this, it contains ingredients that will activate certain hormones known to have an effect on the breakdown of body fat.

Finally, there is a cognitive, mood-based, energy aspect to PrimeShred. Cognitive and mental health concerns can be common during a caloric deficit, as low blood sugar and inadequate energy intake lead to crashes and low mood. PrimeShred contains nootropics known to improve cognitive function, diminishing the effects to your mood and energy levels brought about by eating too little.

You should be able to stay sharp, focussed, and alert using PrimeShred in a caloric deficit, even as the fat melts from your body.

All the ingredients are good, too, with PrimeShred being completely transparent about what they use in their formula (no proprietary blends here.) Mostly, we have some of the more standard ingredients mentioned above – caffeine, green coffee, black pepper, and cayenne pepper make up the bulk of the natural ingredients listed.

Then there are a couple of more specialised compounds. These include 150 mg of dimethylaminoethanol (DMAE). DMAE increases the creation of acetylcholine, which is a neurotransmitter associated with improved cognitive performance – hence PrimeShred’s nootropic nature. You also get 250 mg of L-Theanine, a great metabolism booster, and 250 mg of Rhodiola Rosea Root, which can activate a fat-burning enzyme called hormone-sensitive lipase, thus leading to greater fat breakdown.

The company offer an incredibly good 100-day money back guarantee and a fuss-free refund process if you find that PrimeShred isn’t working for you.

It’s one of the cleverest formulas out there, run by a genuinely decent company – just don’t buy too much into their branding.

Save Up To £144 On PrimeShred Deals

BrutalForce CCUT

CCUT is an all-natural fat-burning supplement that seeks to imitate the effects of the powerful drug Clenbuterol, an anabolic steroid often taken by bodybuilders. Clenbuterol is often used to treat asthma, and as such is a prescription drug in most countries. However, bodybuilders tend to use it (or abuse it, depending on your point of view) to run a recomp – losing bodyfat whilst maintaining or even building muscle mass.

Clenbuterol can have serious side effects such as heart palpitations, high blood sugar, anxiety, mood swings, insomnia, muscle cramps, or even cardiac arrest, however, so using it for such a frivolous reason as aesthetics is unwise in the extreme.

This is where CCUT comes into it. It seeks to mimic the effects of such a harsh drug without any of the negatives, giving a natural boost to your training without side effects. Such compounds can work wonders. This one does – I thoroughly respect the direction this kind of supplement takes, and the inspiration behind them all.

CCUT features a blend of natural stimulants, herbal extracts, and vitamins all geared towards shredding body fat whilst allowing you to retain your hard-fought for lean muscle mass – exactly what Clenbuterol users will be after.

It works by controlling your body’s ability to make fat whilst regulating (and boosting) your metabolic rate, without any of the harsh side-effects noted above.

Firstly, we have improved thermogenesis, the promotion of which can obviously significantly improve weight loss whilst reducing appetite. Then we have the resting metabolic rate (RMR) boost that CCUT elicits. As with many of the items on this list, it can cause you to burn more energy (thus fat, in a caloric deficit) at rest, helping you to lose weight.

CCUT is also an appetite suppressant, with several of their ingredients working to reduce hunger pangs and cravings. Though you should be wary of under-eating too much (a deficit of 500 to 1000 calories daily will suffice for steady weight loss), supplements like CCUT can make it a lot easier for you to keep this modest deficit going.

The results will not be the same as Clenbuterol can offer (otherwise nobody would abuse Clenbuterol.) However, the effects are similar, in a diluted form, everything is legal, and there are no harsh, health-threatening side effects to worry about.

Check Latest Deals On BrutalForce CCUT

Hunter Burn

Again, we have a very butch sounding product designed to appeal to a certain type of athlete – male, alpha, with dreams of being some kind of apex creature. When I say designed, I don’t mean in the lab – I mean in the marketing department, of course (the company who sell it are called Roar Ambition, which should tell you everything you need to know about their branding ethos!)

Hunter Burn is targeted at men, but this is rubbish. Anyone can use it in conjunction with an active lifestyle and a modest caloric deficit to lose weight and feel more energised. This is its main aim, in fact – to aid weight loss whilst giving you plenty of energy and focus.

Hunter Burn isn’t cheap – Roar Ambition market it as a premium product, and they price it accordingly. But do they deserve the price tag? Do they deserve the kind of overconfidence that Roar Ambition show?

This price tag and confidence may be reasonable. Roar Ambition don’t use a proprietary blend with this supplement, which is great – we can see exactly what goes into Hunter Burn. The formula contains plenty of high quality ingredients like vitamin D3, konjac root, L-Theanine, matcha green tea, and cayenne pepper. These are all usual suspects in a fat burner, all deserving of their place.

There are no stimulants in their formula. There is no caffeine – no tea, no green tea, nothing. This makes Hunter Burn something of a rarity. Though I would generally recommend caffeinated products for the energy release and the broader health benefits they can deliver, they are far from suitable for everyone. If you’re looking for a stimulant free fat burner that works, Hunter Burn is a solid option.

The range of high-quality ingredients – and the absence of caffeine – make Hunter Burn a contender. It isn’t to be sniffed at. Other than the caffeine content, there is little to separate it from its peers in a practical sense. However, it’s a strong option, if a little aggressively marketed and priced.

Check Latest Deals On Hunter Burn

Instant Knockout Cut

Instant Knockout Cut is quite a fun supplement. It comes in a fist-shaped bottle of 120 capsules which cheered me up no-end when I first saw it.

It’s not all about the gimmicks, either. It was developed specifically for MMA fighters and pro boxers, hence the branding, but is obviously of great use to any athlete looking for an effective cut.

Instant Knockout Cut contains a very good blend of ingredients in its formula, from essential vitamins and minerals (always handy to take in as a supplement when restricting food intake) to various plant extracts designed to give you the weight-loss boost you need. It also contains caffeine, aiding energy levels, giving you plenty of antioxidants, and further raising your RMR.

Each four capsule serving will give you more than your RDA of vitamins B6, B12, and D3, alongside large doses of l-theanine, cayenne pepper, green tea extract, glucomannan, black pepper extract, and caffeine. These are all common ingredients that we have obviously seen time and time again on this list. There is a good reason for this – they are fantastic, giving you the fat burning, appetite suppressing, energising kick that we all need during a caloric deficit.

Check Latest Deals On Instant Knockout Cut

Verdict

There is something here for everyone – and, despite much of the branding on show, everyone will benefit from them all. If you fancy the look of something that doesn’t appear to be aimed at you and your demographic, go for it anyway – it will have near identical ingredients to any other thing, or at least variations on the same theme – likewise, if you are approaching fat loss as a couple, you don’t need to buy separate fat burners.

If you want a no stimulant, good quality fat burner, and you’re a man, there is no reason to avoid Hourglass Fit. There is every reason to go with it, in fact. Similarly, if you want to go for a hardcore version, and you happen to be a woman, don’t shy away from Hunter Burn. You will get fantastic results from it.

If you want something with plenty of stimulant action, most of the items on this list will suit you well; if you want to combine this with a decent appetite suppressor, then TrimTone will suit you well. If you struggle with cognitive function on a cut (which many people do, as their bodies struggle to cope with depleted energy levels) I would recommend PrimeShred.

Then again, if you’re looking for something that is able to mimic the effect of well-known steroids, to give you the edge in bodybuilding or whatever athletic discipline you train in, and want to keep things clean and legal, Brutal Force’s CCUT will be for you (no matter who you are, if you have the relevant goals, it will be of use!)

As an all-rounder, I personally like PrimeShred – I favour cognitive enhancement with plenty of energy. That being said, I also value sleep and not feeling hungry during it – and for that reason I’d have to go with the clever formula that is brought to us by Phen24.

However, find the one that seems right for you, no matter who they think they’re aiming at. Anything from this list will help you to lose body fat – the manner in which you do so is completely up to you.

More About Natural Fat Burners

Most fat burners will use a combination of several well-known, natural ingredients. These have all been scientifically proven to aid in weight loss, across its various aspects. There are appetite suppressors, which will make it easier to maintain your caloric deficit. There are those that boost thermogenesis (simply put, the rate at which you burn fat). There are those that aid your mood, energy levels, and cognitive function, even as you go into a calorie deficit (these all typically take a bit of a beating, especially at first).

All of the following ingredients will be present on our list at some point (at several points, actually), as will derivations and variations that elicit similar effects.

First up, we have caffeine. In your diet, you’ll usually find it in coffee, tea, and chocolate. However, it’s generally used in fat burners for a couple of reasons.

Number one, it can help to boost your metabolic rate, making your body far more efficient at burning energy. It can also help to gear your body specifically towards burning fat, rather than other body tissue.

Number two, it can give you an energy boost and clear your head if you’re feeling a little low from restricting calories.

Next up, we have green tea extract. It is caffeinated, giving you the above benefits. It’s also rich in polyphenol epigallocatechin gallate, which can also aid in burning fat. Together, they will lead to far more efficient thermogenesis, burning up to 80 extra calories per day if taken at regular intervals.

Protein intake is also important for burning fat. In your supplement regime, this can be protein powder or any form of amino acid.

Protein is slow digesting, meaning that it keeps you feeling fuller for longer and parcels out energy slowly and steadily. You’ll experience fewer crashes and dips if you take protein in regularly. It is also key to building lean muscle, which will further boost your metabolic rate.

Finally, we have fibre – in particular, soluble fibre. Fibre absorbs water in the digestive tract, helping to keep you regular and healthy. This can be crucial during a calorie cut, when bathroom habits are often… disrupted.

Soluble fibre can also work wonders as an appetite suppressant, keeping you feeling fuller for longer. It increases the body’s levels of fullness hormones like PYY and GLP-1 (protein does this too, FYI) whilst decreasing levels of the hunger hormone ghrelin. Then there is the fact that it actually keeps you physically fuller for longer, slowing down the digestion and release of nutrients so that energy levels remain stable and hunger pangs disappear.

Of course, you could simply take these ingredients in as part of your diet, on their own. However, fat burners cut out the hassle, giving you everything you need in one hit, they are often cheaper than the base ingredients would be, and they are all dosed at the levels you will need.