There’s no two ways about it – the UK fat burner market is absolutely saturated with low quality products.
The problems with most fat burners vary in severity.
Some just rip you off by dosing the best ingredients too low while hiding everything behind a proprietary blend.
Others use powerful synthetic stimulants and appetite suppressants which pose a serious risk to health…and in rare cases a serious risk to life!
Of course, fat burners which can be considered genuinely dangerous are quite rare. The shady manufacturers that used to produce them can’t get away with using amphetamine analogues or exogenous hormones like they could a decade ago.
The UK fat burner market doesn’t have the same problems as the US market – we don’t have the same issue with life-threatening products.
Unfortunately, over-priced products are not so rare.
In fact, we’d go as far as to say that 90% of the fat burners on sale today are total crap.
In our experience, most fat loss aids will do one or more of the following:
- Use bogus, unproven ingredients
- Use proprietary blends
- Dose key ingredients too low
- Use low potency extracts
- Pass common substances off as exotic chemicals
- Use pro-hormones and other banned substances
- Rely heavily on stimulants
- Artificially suppress appetite – athletes need to be able to eat!
- Cause severe side effects
- Pose serious long-term health risks
- Possibly cause addiction
With so many pitfalls to watch out for, finding a good quality, safe, reasonably priced fat burner can be pretty difficult.
Even if you know a lot about bodybuilding supplementation, you can still end up getting ripped off by the clever tricks of supplement manufacturers. You can be well-versed in the science behind sports-specific supplementation, but we promise you that the big brands have ways to pull the wool over your eyes.
That’s where we come in!
We have collectively spent years researching, testing, and experimenting with the different fat burners on sale in the UK.
Our goals have differed – some of us used them to make weight for an MMA fight, some of us used them to get in peak condition for a summer vacation. But every member of our review team has experience using these products in a serious, dedicated manner.
On top of that, we spend hours every week reading the latest articles and scientific papers, making sure that we’re completely up-to-date with the latest research into fat burning supplements.
We bring all of this extensive research and personal experience to the table when doing our fat burner reviews. We take a close look at each product and construct our opinion based on what we know about the ingredients, how they’re stacked together, and so on.
After conducting dozens of reviews, we’re proud to present to our our rankings of the best fat burners in the UK right now!
Below you will find a breakdown of our top rated fat burners.
Each one has its own selling point. The best product overall may not necessarily be the best product for you. Read each section carefully, and if you have time we recommend reading each product review individually. All of these fat burners are available in the UK.
If you have any questions, please let us know in the comments section at the end. If you think you know of a product that deserves to be in the rankings – and we haven’t reviewed it yet – tell us!
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#1 Overall: Instant Knockout by Roar Ambition
Our Rating
9.6
Major Strength
Covers every angle
Instant Knockout is, hands down, the best fat burner on the market today. It covers every angle – enhanced lipolysis, less hunger, reduced over-eating, better blood sugar control, increased energy levels, and increased caloric expenditure. The ingredients all have a purpose, and they all contribute to faster fat loss. We literally can’t ask for much more from a professional fat burner.
If you’re a bodybuilder, competitive fighter, or weightlifter looking to drop more body fat during your next cut, Instant Knockout can definitely help.
It’s hardly a controversial choice for our top rated fat burner, but there’s just no arguing with the quality of the product here. Instant Knockout is one of the most popular fat burners in the world because it works. It is listed as the top product on numerous bodybuilding blogs and supplement review sites because it consistently delivers real results for a reasonable price. It has no dead weight, no waste, no fillers – just proven, effective, natural fat burners at good doses.
It set a new standard for fat burners when it was launched a few years ago, and that standard has still not been surpassed!
The benefits of using Instant Knockout include:
- Excellent servings of the most effective ingredients
- Serious appetite/over-eating support
- Keeps energy levels elevated throughout the day
- Increases fat metabolism directly
- Puts you in a relatively deeper caloric deficit without blocking carbs or fat
- No synthetic chemicals or pro-hormones
- Caffeine dosed sensibly
- Dose is divisible into smaller portions to be taken throughout the day
-Learn More From Our Full Review-
Pricing
Instant Knockout is priced very reasonably for a professional bodybuilding supplement. It obviously costs a little more than some other fat burners. You only ever get what you pay for. That said, if you purchase multiple boxes of Instant Knockout at once, it becomes cheaper than even some low quality fat burners!
We’re not too concerned about absolute price anyway. We’re more interested in value for money, and Instant Knockout provides some serious bang for your buck.
Cost For One-Off Buy
$59.00
Price With Mutli-Buy Discounts
$46.25
Cost Per Day
$1.54
What more can we say? This is a top quality supplement – nothing else could possibly take its place as our #1 recommended product. Instant Knockout is a true all-round fat burner. It ticks every box. It’s safe, reliable, and it works. Once you factor in multi-buy discounts too, it becomes an absolute bargain.
-Check Out The Website-
#1 Stimulant-Free: Performance Lab SPORT Fat Burner
Our Rating
9.4
Major Strength
Helps retain muscle mass
Performance Lab SPORT Fat Burner hasn’t been on the market for very long, but it has shot straight to number 2 on our list. This is a top quality supplement. It covers the most important aspects of a fat burner – increased lipolysis and increasing caloric deficit – extremely well. It is stimulant-free, which makes it ideal for anyone who also likes to use pre-workouts. However, the big selling point for us is the heavy dose of HMB. No other fat burner gets muscle preservation right. Performance Lab SPORT Fat Burner combines increased fat loss with better muscle retention.
This is a great product for anyone looking to drop some body fat while keeping hold of their gains. It’s particularly useful for those of you who don’t like to take stimulants, or for anyone currently using a high-caffeine pre-workout.
Performance Lab is a relatively new brand. It has caused serious ripples since its launch in 2018. The reason it has had such a big impact is because it is doing what other brands are not – focusing on quality ingredients proven by science while keeping things simple and affordable. No product exemplifies this more than their SPORT Fat Burner.
This may not be as much of a complete package as Instant Knockout, but if your specific goals are to retain as much muscle mass as possible while maximizing fat loss, this is probably the right product for you. If you’re looking to save some cash while still getting a top quality, professional supplement, look no further!
The main benefits of using Performance Lab SPORT Fat Burner are:
- Great price
- Significantly reduces muscle loss
- Increases fat metabolism
- Stimulant-free – can be easily stacked with pre-workouts
-Read Our Full Review-
Pricing
The biggest draw for most of you will be the price. Like all Performance Lab products, this procuct is designed to deliver real results for an affordable price. SPORT Fat Burner comes in at a significantly lower price point than most fat burners on the market today, even when buying a single box.
Cost For One-Off Buy
$50.00
Price With Mutli-Buy Discounts
$45.00
Cost Per Day
$1.50
In our opinion, this is the best option for those of you who are looking for a simple, straightforward fat burner that you can stack with your pre-workouts. It will help you keep your gains while you drop body fat, as well as making your cut a lot faster. The price tag is a very nice bonus. Well worth a try in our opinion!
-Check Out The Website-
#3 Runner-Up: BurnerTEK v2.0
Our Rating
8.5
Major Strength
Good range of ingredients
We think of BurnerTEK as a kind of weaker, more bloated version of Instant Knockout. It contains many of the same ingredients, but at lower doses, and with some serious dead weight thrown in on top. Not a great supplement, but not bad either.
The benefits of using this product include:
- Increased satiety after meals
- Increased energy levels
- Significantly increased caloric expenditure through thermogenesis
- Low side effect risks
-Read Our Full Review-
Pricing
BurnerTEK is quite a cheap fat burner. It is cheaper than Instant Knockout. It’s even cheaper than Performance Lab SPORT Fat Burner. This is to be expected; the doses used here are pretty low compared to the other fat burners on this list, and you always get what you pay for. However, for some of you, the fact that it is cheaper will be a major selling point. Sometimes, we just can’t afford to push the boat out!
Cost For One-Off Buy
$39.99
Price With Mutli-Buy Discounts
$33.99
Cost Per Day
$1.13
This is significantly cheaper than either of the other fat burners listed above. For us, this is just the consequence of lowering the doses of ingredients like Glucomannan and Caffeine Anhydrous. However, for some of you guys this will be a major selling point. It’s important that you figure out what your buying criteria are before you go ahead and spend your money.
That said, this is a decent supplement. It will no doubt deliver for a lot of people, and the extra $0.40 you can save per day using this instead of Instant Knockout can quickly add up!
-Check Out Our Detailed Review-
How To Choose The Right Fat Burner For You
The supplements listed above are, in our opinion, the best fat burners in the UK right now.
They all all top quality sports supplements.
That said, it’s important that you take note of the different benefits they offer.
Instant Knockout has long been the best fat burner in the UK; it is probably the most popular, widely used, and highly rated fat burner in Britain (not to mention in the USA, Canada, and much of Europe). It is a potent, caffeine-fueled fat burner. This is the best option for experienced athletes and serious bodybuilders.
Performance Lab SPORT Fat Burner, on the other hand, is a much less intense supplement. It is stimulant-free, making it ideal for those of you who react badly to stimulants, or for you guys who like to use caffeine-laden pre-workouts.
These products are both made by UK-based companies. They are excellent, professional-quality fat burners.
Evaluate your specific goals carefully, and choose the best fat burner for your needs.