Best Fat Burners UK 2020 – Your Ultimate Guide

We pick out five of the best 'fat burner' supplements available to buy in the UK right now to support you on your health and fitness journey

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Best Fat Burner UK
So-called 'fat burners' usually contain vitamins, minerals and plant extracts

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 will deliver results with little effort on your part.

Of course, if it sounds too good to be true, it usually is. The simple fact of the matter 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 claim to be able to help support you 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. The content of our articles is not intended for use as diagnosis, prevention, and/or treatment of health problems. It’s always best to speak with your doctor or a certified medical professional before making any changes to your lifestyle, diet or exercise routine, or trying a new supplement.

In this guide, we’re going to pick out five of the leading ‘fat burner’ supplements aimed at the UK market right now. If you’re looking for a bigger selection of products, be sure to check out our main guide to ‘fat burners’. We also have a separate guide focused on supplements aimed at women.

Best Fat Burners UK – Five Top Supplements

Rating Summary Website
Instant Knockout Instant Knockout • Best For Men • Green Tea • Cayenne Pepper • 90-day Guarantee Buy Now
Leanbean Leanbean • Best For Women • 3g Glucomannan • Vegan Friendly • 90-day Guarantee Buy Now
SPORT Burn Performance Lab SPORT Fat Burner • Caffeine Free • Cayenne Pepper • Chromium • Vegan Capsules Buy Now
Cutting Edge Cutting Edge • Glucomannan • Caffeine • Choline • Vegan Friendly Buy Now
Thermopure Thermopure • Vitamins B6 & B12 • Caffeine • Cayenne • Green Tea 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 common sense tells us that this is unlikely to be the case. 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 more likely to be active and willing to 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.

Fat Burner Supplement

(Photo: Adobe Stock)

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.

Is Taking A ‘Fat Burner’ Worth It?

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 can 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 to be used. 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.

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 key 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.

Best Fat Burner UK Supplements

(Photo: Adobe Stock)

• 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 – Although not officially authorised for any health claims in Europe, 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. In case you were wondering, this doesn’t make the supplement taste spicy, as the ingredients are all swallowed together in a capsule form.

• 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 2020 – 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 transparent 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.

1) Instant Knockout

Top Pick For Men

Instant Knockout

Website: www.instantknockout.com

Instant Knockout 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, minerals and plant extracts, in a clear and simple formula. Instant Knockout 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 also contains Chromium, which contributes to normal macronutrient metabolism and the maintenance of normal blood glucose levels. Instant Knockout also includes ingredients such as Vitamins B6 and B12, along with the important mineral Zinc. You’re directed to take one capsule, four times per day, and one bottle is a month’s supply at that dose. 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.

2) Leanbean

Best Premium Option For Women

Leanbean Fat Burner Supplement Bottle

Website: www.leanbeanofficial.com

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. You are directed to take two capsules, three times per day, meaning that a bottle is the same as a month’s supply.

3) Performance Lab SPORT Burn

Best Caffeine Free Option

Performance Lab Sport BURN

Website: www.performancelab.com

Performance Lab’s SPORT Burn is a stimulant-free, vegan friendly supplement that features a clean and clear ingredients formula. It does not use Caffeine or any other stimulants in its formula, which makes it an ideal choice if you prefer a product without stimulants. 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 clean formula, with the only two additional ingredients being the Pullulan Capsule and Rice Concentrate. Each bottle contains 60 capsules and you’re advised to take two to four capsules before a workout.

4) Bulk Powders Cutting Edge

Bulk Powders Cutting Edge

Website: www.bulkpowders.com

Cutting Edge is a supplement made and marketed by the UK-based supplements powerhouse Bulk Powders. 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 capsules, and you’re advised to take two capsules, three times per day.

5) Myprotein Thermopure

Myprotein Thermopure

Website: www.myprotein.com

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 and you are directed to take one serving of three capsules around an hour before your morning workout. The significant Caffeine content in each serving means that this product is probably not suitable to be consumed later in the day or for those sensitive to stimulants.

Is There Anything Else To Bear In Mind?

It is always best to 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 products in this category are generally not intended for use by people under the age of 16, 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.

Fat burner supplement

(Photo: Adobe Stock)

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 is a good option for men, Leanbean is a good choice for women, and Performance Lab SPORT Burn could suit someone looking for a stimulant-free supplement in this category.

The information on this website is intended for entertainment purposes only and does not constitute professional, medical or healthcare advice or diagnosis.

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