Best Fat Burners UK 2023 – Your Ultimate Guide
We pick out five of the best 'fat burner' supplements available to buy in the UK to support you on your health and fitness journey
You probably already know that so-called ‘fat burner’ supplements can have a bit of a controversial reputation.
That’s mainly because many of them are aggressively marketed as ‘magic pills’ that claim to deliver results with little effort on your part.
Of course, if it sounds too good to be true, it usually is. The truth is that most supplements in this category haven’t been proven to ‘burn’ fat on their own.
The term ‘fat burner’ usually refers to a food supplement that contains a range of ingredients such as vitamins, minerals and plant extracts, each of which may (or may not) bring a potential benefit.
It’s important to remember that the most widely-accepted method for achieving fat loss is to stick to a diet and exercise regimen in which you’re burning slightly more calories than you’re consuming over time.
In other words, it’s about keeping yourself in a slight calorie deficit as part of a well-managed and healthy lifestyle.
However, there are still plenty of supplements out there that can offer some support on your health and fitness journey alongside sensible lifestyle choices.
Editor's note: The content on this website is meant to be informative in nature, but it should not be taken as medical advice. Our articles and the products featured in them are not intended for use as diagnosis, prevention, and/or treatment of health problems. Always speak with a certified medical professional before making any changes to your lifestyle, diet, exercise routine, and/or taking any supplements.
In this guide, we’re going to pick out five of the leading ‘fat burner’ supplements aimed at the UK market right now.
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Best Fat Burners UK – Five Top Supplements
|Instant Knockout Cut||• B Vitamins • Green Tea • Cayenne Pepper • Vegan Friendly||Buy Now|
|Leanbean||• Made For Women • 3g Glucomannan • Vegan Friendly • 90-day Guarantee||Buy Now|
|Burn Lab Pro||• Cayenne Pepper • Chromium • No Caffeine • Vegan Friendly||Buy Now|
|Cutting Edge||• Glucomannan • Caffeine • Vegan Friendly • UK/Europe Only||Buy Now|
|Thermopure||• Vitamins B6 & B12 • Caffeine • Cayenne • Chromium||Buy Now|
What Is A ‘Fat Burner’ Supplement?
As we have already mentioned, the term ‘fat burner’ usually refers to a food supplement that contains a range of ingredients such as vitamins, minerals and plant extracts.
Many are aggressively marketed as ‘magic solutions’ but it’s best not to buy into the marketing hype and do some research before committing to a product. Getting into shape takes time, effort and persistence, regardless of whether you are using supplements or not.
Supplements in this category often use ingredients that can help to contribute to a range of normal bodily functions.
They also sometimes contain stimulants such as Caffeine. The general idea behind the use of stimulants is that they may help you be active for exercise (and therefore burn calories). That being said, there’s a fine line between feeling the benefits of a stimulant such as Caffeine and over-doing it.
Herbal or plant extracts are also commonly used in supplements in this category. Some of them have some promising research behind them, and some of them do not. It’s generally best to read up on each of the ingredients yourself so you can find out a bit more about what is in the supplement you’re considering.
So, the bottom line here is that the term ‘fat burner’ usually refers to a food supplement that combines a range of ingredients, such as vitamins, minerals and plant extracts, each of which may bring a benefit to the table.
Some of the ingredients are widely accepted to be effective for certain purposes – but some are not – and so it’s important to do your research before committing to a product.
What To Expect From A ‘Fat Burner’
As we mentioned above, there are no miracle supplements out there that will work without any effort on your part.
It’s important to first make sure that you’re sticking to a healthy and varied diet, and that you’re also following a sensible workout plan, before even thinking about taking a supplement.
Food supplements are not intended to replace a varied diet and a healthy lifestyle, however they can help to make up for a potential shortfall in certain nutrients.
We’ve already mentioned that the products in this category are designed to be combined with the correct healthy lifestyle choices. If you’re looking to lose fat, this means that you’ll need to be in a slight calorie deficit as part of a well-managed and sensible diet and exercise regimen.
A supplement can then be considered as a means for providing certain important nutrients, such as vitamins and minerals. The idea is that its ingredients may be able to offer some support on your health and fitness journey.
So in terms of whether a ‘fat burner’ is worth it or not, it really very much depends on your situation.
If you’re willing to put in the effort required to be a slight calorie deficit with your (well-managed and sensible) diet and exercise programme – then some of the ingredients found in supplements may help to support you on your fitness journey.
What Are Some Of The Ingredients To Look For?
If you’ve done any research into supplements in this category before, you’ll probably have already come across some of the commonly-used ingredients.
As we mentioned above, most supplements use a blend of vitamins, minerals and plant extracts. Some also use stimulants such as Caffeine.
You may or may not know that in Europe, only a select number of health claims about food supplement ingredients are authorised. When a claim has been authorised for use, it’s usually a pretty good indication that the ingredient will bring some benefits to the table.
Editor's note: Any health claims about the ingredients mentioned in this article are listed as authorised on the EU Register at the time of publishing. Additionally, you should carefully check the ingredients information shown on the official website of any product you're considering purchasing, as formulas may change from time to time and therefore may differ from what's shown on this page.
Here are some of the most common ingredients found in supplements in this category, along with some of their benefits.
• Glucomannan – This is a dietary fibre which comes from the root of the Konjac plant. It’s probably one of the most effective ingredients in supplements in this category. When it’s used in a supplement or food that includes 3g per day (in three, separate 1g doses), Glucomannan contributes to weight loss in the context of an energy-restricted diet. It’s one of the common ingredients to look for in supplements of this type.
• Chromium – Chromium is an essential trace element that the body requires in small amounts. Amongst its benefits are the fact that it contributes to normal macronutrient metabolism and the maintenance of normal blood glucose (blood sugar) levels.
• Choline – This is an essential nutrient that contributes to normal lipid (fat) metabolism when included in doses of at least 82.5mg. It’s a common inclusion in supplements in this category.
• Vitamins – Many supplements in this category include essential vitamins in their formulas. For example, Vitamins B6 and B12 contribute to the reduction of tiredness and fatigue, as well as normal energy release. Vitamin D, on the other hand, contributes to the normal functioning of the immune system and normal muscle function.
• Minerals – Essential minerals are also often found the formulas of supplements in this category. For example, Zinc contributes to normal protein synthesis and normal macronutrient metabolism.
• Green Tea Extract – Green Tea is a popular hot drink which has some promising research behind it, and it’s a common inclusion in supplements in this category.
• Cayenne Pepper or Chilli Extract – Again, some sort of Cayenne or Chilli Extract is also often added in small amounts to supplements of this type.
• Caffeine or Other Stimulants – As mentioned above, many supplements in this category include small amounts of Caffeine or other stimulants. Caffeine is probably the most well-known stimulant in the world, and coffee drinkers will need no explanation of its benefits.
Best Fat Burner UK 2023 – Five Top Picks
So, let’s now look at our list of five of the leading supplements out there in the UK at the moment.
Each one of the supplements below has a clear ingredients label in which you can see the exact doses of all of the active ingredients, so you’ll know exactly what you’re getting in each capsule.
Editor's note: The writer of this article has not necessarily tried the products featured. All product information provided is purely research based.
1) Instant Knockout Cut
Top Pick For Men
Instant Knockout Cut is made and sold by the UK-based supplements company Roar Ambition. It’s been around for quite a few years now and it contains a carefully-selected array of ingredients, including vitamins, amino acids and plant extracts, in a clear and simple formula. Instant Knockout Cut is vegan friendly and contains 300mg of Caffeine Anhydrous per daily serving (75mg per capsule). Among the other ingredients in its formula is the dietary fiber Glucomannan, along with other popular inclusions such as Green Tea Extract, Green Coffee Bean Extract and Cayenne Pepper. Instant Knockout Cut also contains ingredients such as Vitamins B6 and B12, both of which contribute to normal energy release and the reduction of tiredness and fatigue. It also includes a 1800IU dose of Vitamin D3 per daily serving. It carries a premium price-tag, but you can save on the price per bottle if you buy more than one at a time from the official site.
Best Premium Option For Women
Leanbean is a vegan friendly, low-stimulant, female-focused supplement made by the UK-based company Ultimate Life. It’s sold online from the official website and contains a range of ingredients you’d expect to find in a product in this category. The Leanbean formula includes 3g of Glucomannan per daily dose, which helps with weight loss in the context of an energy restricted diet. Leanbean also uses important vitamins and minerals such as Choline, Chromium and Vitamins B6 and B12. Choline helps with normal lipid (fat) metabolism – and the B6 and B12 help with the reduction of tiredness and fatigue and normal energy release. Leanbean also contains plant extracts such as Turmeric, Green Coffee Bean Extract, and Garcinia Cambogia Extract. One bottle of Leanbean contains 180 capsules, which is around a month’s supply.
3) Burn Lab Pro
Best Caffeine Free Option
Burn Lab Pro is a low-stimulant, vegan friendly supplement that features a very simple and clear ingredients formula. It does not use pure Caffeine as an ingredient in its formula, which makes it an ideal choice if you prefer a low-stimulant product. It contains six active ingredients, and among them is Chromium, which contributes to normal macronutrient metabolism and the maintenance of normal blood glucose (blood sugar) levels. It also uses the commonly-used ingredient Cayenne Pepper in its formula. Other ingredients in the formula include a plant extract called Coleus Forskohlii and a small dose of the essential mineral Calcium. It has a very clear formula, with the only two additional ingredients being the Pullulan Capsule and Rice Concentrate. Each bottle contains 90 capsules.
4) Bulk Cutting Edge
Cutting Edge is a supplement made and marketed by the UK-based supplements powerhouse Bulk. It comes in a box and contains a range of the key ingredients you’d expect to find in a supplement in this category, including a 3g daily dose of Glucomannan, which contributes to weight loss in the context of an energy-restricted diet. Cutting Edge also uses 300mg of Caffeine per daily serving, so it may suit people looking for a bigger stimulant dose. Among the other ingredients in the formula are Choline, which contributes to normal lipid (fat) metabolism, and Chromium, which helps with normal macronutrient metabolism. It also uses Selenium and Green Coffee Extract among its ingredients. Each box contains 180 vegan friendly capsules.
5) Myprotein Thermopure
Thermopure is made by the UK-based supplements company Myprotein. It features a range of essential vitamins and minerals, combined with plant extracts and Caffeine. Among its ingredients are Vitamins B6 and B12, both of which contribute to normal energy release and the reduction of tiredness and fatigue. It also uses Chromium, which helps with normal macronutrient metabolism. Thermopure contains 198mg of total Caffeine per three-capsule serving (66mg of total Caffeine per capsule). Among its other ingredients are Green Tea Extract, L-Theanine and L-Tyrosine. Each bottle contains either 90 or 180 capsules. The significant Caffeine content in each serving means that this supplement won’t be a good choice for people looking for low-stimulant option.
Men’s vs Women’s Supplements
You may have noticed that a lot of the ‘fat burner’ supplements on the market these days are aimed mainly at men or both genders.
While it is probably true that there are fewer female-focused supplements on the market, there are also some good options available.
At the end of the day, the main difference between men’s and women’s supplements is likely to go no further than the marketing material, and perhaps some of the doses of certain ingredients.
Most of the products in this category contain a similar profile of ingredients, whether you opt for a men’s or women’s supplement or not.
That being said, some female-focused supplements may have smaller amounts of certain ingredients, such as Caffeine, compared to their men’s counterparts.
You can check out our specific guide to some of the best supplements for women in this category by clicking here.
Delivery And Where To Buy
This page is focused on products that are specifically available in the UK with fast delivery options. The five supplements featured on this page can all be bought directly from the official websites.
One of the advantages of buying a supplement from an official website is that it means you can be sure that the product you’re getting will be genuine and authentic.
Another advantage of buying directly from the manufacturer is that it may be easier for you to return a product if you’re not happy with it.
Most of the companies featured on this page offer fast delivery options in the UK. Some of them may charge more for express delivery opens.
Is There Anything Else To Bear In Mind?
You should always speak to your doctor or a certified medical professional before taking a new supplement or making any major lifestyle changes. This is especially important if you are taking any prescription medications or have an underlying health condition.
The supplements featured on this page are not intended for use by people under the age of 18, and they should not be used by pregnant or breastfeeding women.
It’s vitally important that you carefully check the label of any product you purchase, and that includes reading all of the warnings and directions associated with its consumption.
Some of the products on this list contain Caffeine. It’s always a good idea to keep track of your total Caffeine intake from all sources to make sure that you’re not overdoing it. Because of its half-life, it’s also probably best not to consume anything containing Caffeine within six hours of going to sleep.
As we mentioned above, supplements of this type are not going to work miracles on their own. They are designed to provide a range of potentially-helpful nutrients and be combined with a healthy, varied diet and a sensible workout plan.
Sticking to a workout and nutrition plan in which you are in a slight daily calorie deficit (burning more calories than you’re consuming) is generally considered to be the most widely-accepted method for achieving fat loss.
Conclusion – Our Final Thoughts
That brings us to the end of our look at five of the best ‘fat burner’ supplements in the UK at the moment.
We’ve walked you through the basic things you need to know about products in this category and why it’s important to have realistic expectations before trying one.
We’ve also pointed out that it’s key to ensure that your diet and exercise regimen are both on point, and that you’ve spoken to your doctor, before you think about trying a supplement in this category or making any major lifestyle changes.
Our list features five top products from five different manufacturers. Instant Knockout Cut is a good option for men, Leanbean is a good choice for women, and Burn Lab Pro could suit someone looking for a low-stimulant supplement in this category.