If you’ve ever seriously wanted to lose weight, chances are you contemplated using fat burners. Who would say no to magic pills that make the extra weight go “poof!”, right? Well, fat burners are not designed to do the work by themselves but to help users get a boost in shedding weight while they exercise and eat well.
This guide will list the ten most popular fat-burner brands in the UK. By the end, you'll learn which supplement is best for men and which one is best for women, among other helpful information. We hope to help you get all the info you need to find the best product for yourself.
Best Fat Burners UK - Quick Overview:
1. PhenQ: Best Overall
2. Leanbean: Best For Women
3. Instant Knockout: Best For Energy
5. Prime Shred
7. Powher Cut
9. Hunter Burn
Are fat burners effective?
There’s a lot of debate in the fitness world about whether fat burners work or not. You’ve got a lot of personal trainers and fitness experts denying their efficacy due to the lack of scientific evidence behind them. Then, there are the reviews by the people who have used them, seen great results, and sworn that they work.
The truth is, like most times, somewhere in between. Even the best fat burners will not get rid of your fat while you sit and eat junk food all day. They’re called “supplements” for a reason; they supplement your diet and your exercise regimen.
So, are fat burners effective? On their own: It’s a big maybe. With proper diet and exercise: If you choose a trustworthy brand, most likely.
Top 5 fat burners in the UK
- Averts the accumulation of fat
- Diminishes food cravings and appetite
- Speed up metabolism
- Decreases food cravings
- Reduces symptoms of fatigue
- Kickstarts metabolism
- Enhances gym performance
- Increases thermogenesis
- Enhances cognitive function
- Limits junk food cravings
- Boosts confidence
- Suppresses appetite
- Overcome weight-loss plateaus
- Shed fat with keeping the muscle mass intact
- Get rid of the stubborn last few pounds of fat.
PhenQ is relatively new compared to some fat burners on our list. Its manufacturer, Wolfson Berg Ltd, promotes it as a "natural weight management system that targets 5 key areas of metabolic health".
Those areas are:
PhenQ is made entirely of ingredients that have undergone extensive testing and are supported by scientific research. While this might be something that you'd expect from all fat burner products placed on the market, it's not the case.
PhenQ mechanism of action starts with your body’s fat deposits and revving up your metabolism. It converts your body fat into ready-for-use energy. You'd make the best use of it if you engage in moderate-to-strenuous physical activity a few days per week.
Additionally, PhenQ will reduce your cravings for sugar and processed foods so you will feel fuller for longer periods. When your hunger is reduced, your body will begin utilizing the healthy nutrients from the meals you consume — granted, if you stick to a healthy diet throughout the day. It also stops the formation of fat.
You will experience significantly greater benefits from this particular component combination than from any other weight-loss product on the market.
Pros & Cons
It takes one second on Leanbean's website to learn that it's marketed for women who are looking to gain their college-years waistline and confidence back.
One might comment on the similarity between Leanbean and Hourglass Fit since their primary component is glucomannan. Additionally, they both contain zinc, chromium, and vitamin B.
The appetite-suppressing effect is exclusive to glucomannan, a water-soluble fiber. It gets fermented in the colon, allowing it to absorb 50 times its weight in water. Hence, it expands into a gel-like substance that makes you feel fuller.
Chromium is one of Leanbean's most crucial elements, but it is nearly an afterthought in Hourglass. Leanbean also makes use of a number of questionable substances. For instance, the evidence supporting the effectiveness of green coffee extract on weight loss in humans is currently inconclusive, despite showing promise in mice.
Pros & Cons
3. Instant Knockout Cut
A product produced by Roar Ambition — a UK-based supplement company, Instant Knockout Cut is a fan favorite among MMA fighters, gym rats, and people — men or women — who are looking to get a respectable beach body. At least, it’s marketed that way with the pro boxer model posing for the products’ landing page.
This product is made in an FDA-approved and GMP-compliant facility. This means that the product passes the highest safety standards and is definitely not harmful to the human body.
Weight loss, lower cholesterol, and insulin sensitivity regulation are all possible health benefits of Instant Knockout. Its ingredients have been scientifically validated and are well-known for their beneficial effects.
A notable ingredient on Instant Knockout’s label is L-theanine. A randomized controlled trial investigated the combined effect of L-theanine and caffeine on alertness and switch-task attention. The combined effect resulted in increased alertness and better performance while switch-tasking within 60 to 90 minutes after consuming both substances, an effect greater than what can be achieved with the caffeine alone.
While it may seem like common sense to spread the supplements doses three times throughout the day, you should avoid taking them in the evenings to avoid sleep disruption caused by the supplement's stimulants.
Pros & Cons
Much like Leanbean, Trimtone is another fat burner supplement on our list that’s marketed to women. It can be used by men as well if they don’t mind the packaging that’s a bit feminine.
Continuing the comparison with LeanBean, Trimtone's formula also contains glucomannan, although in a lower quantity. This gives LeanBean the upper hand as an appetite suppressant.
In fact, Trimtone contains a negligible dose of glucomannan at 0.1 grams. Sure, the effective dose differs from one source to another, but the suggested safe dose ranges between 1 gram and 13 grams, with one study suggesting that 2-4 grams would help people with obesity consume less food.
Unlike LeanBean, which has 11 ingredients in its premium formula, Trimtone’s formula contains only 5. According to their website, the creators aimed to include only essential ingredients and eliminate fillers to improve its weight-loss effects as possible.
The one similarity Trimtone shares with PhenGold is the one-a-day dose. On the other hand, at only 120 mg per day, Trimtone contains less caffeine.
Pros & Cons
5. Prime Shred
Despite its appearance and marketing, Prime Shred is another fat burner that’s beneficial for all sexes and genders. Nothing in its ingredients list is specifically designed for either men or women.
You can consider Prime Shred a direct competitor to Instant Knockout since both are targeted at men looking to have that gladiator aesthetic.
PrimeShred takes pride in being a triple threat, attacking your fat reserves in three ways.
To begin, it acts as a metabolic booster. How? By improving thermogenesis so that you always burn more calories regardless of what activities you do. Second, it contains ingredients that will activate certain hormones known to have an effect on body fat mobilization and breakdown. Lastly, PrimeShred has cognitive, mood-based, and energy components. One might be concerned about their mood on a caloric deficit. Low mood, grogginess, sluggishness, and other cognitive impairments are symptoms of insufficient energy reserves and low blood sugar. Certain nootropics in PrimeShred counteract those negative effects.
Prime Shred contains special ingredients that aren’t found in the rest of the supplements on the list, except for PhenGold.
DAME boosts the production of acetylcholine, a neurotransmitter linked to enhanced cognitive function, which results in a better mind-muscle connection during your workouts.
Rhodiola Rosea Root increases fat breakdown through the effect of thermogenesis by activating the fat-burning enzyme hormone-sensitive lipase.
Pros & Cons
Right off the bat, Clenbutrol positions itself as a Clenbuterol alternative — a substance that has been suggested to aid in muscle gain and weight loss.
Clenbuterol, the original substance, is a popular substance in the bodybuilding scene. Unfortunately, due to its chemical components, its misuse led to plenty of adverse and life-threatening effects on some of its users.
Clenbutrol claims to be a safe replica of Clenbuterol with a safe formula that’ll enhance the body’s thermogenic effect, burn fat, build muscle, and help with recovery.
With its alternative formula, Clenbutrol seeks to eliminate the negative symptoms of a cutting cycle that includes feeling tired and lethargic. This will ensure that you stay on track with your workouts and have the mental toughness to stick to your diet.
Guarana Extract, which contains about 340 mg of caffeine per serving, is the main component that addresses the issue of low energy. This dose is considered to be quite high, has potent thermogenic action, and offers both immediate and long-lasting energy.
Another superstar ingredient is Garcinia Cambogia (450mg per serving). Its main advantages lie in its appetite-suppressing properties. It's also believed to prevent extra fat storage. Moreover, Garcinia Cambogia is believed to lower cholesterol and maintain a healthy blood sugar level, which is advantageous for your health as well as for avoiding blood sugar falls that can encourage munching.
Pros & Cons
There’s not much to be said here. Clenbutrol is a great fat burner that works effectively when taken as a pre-workout. It’s a no-brainer option if you want to maintain or add muscle during your cut, and it works wonders for reducing body fat. Keep in mind that the high dosage of guarana extract can cause issues with people sensitive to stimulants.
7. Powher Cut
Powher is geared toward women; the name is a clever wordplay on Power + Her. The company offers 3 products:
For the sake of this article, we’re sticking to Powher Cut.
When working out, stimulants have been suggested to enhance performance, focus, and endurance. However, Powher prides itself on its low-stimulant content. Instead, they prioritize the mental focus and energetic aspect of exercise. In short, the company claims that you’ll feel energized and more alert without the possible adverse effects of stimulants (e.g., jitters).
Chromium picolinate, a mineral ingredient of this supplement, has been suggested to regulate appetite and might even suppress it.
One study looking at its effects on food intake and satiety outlines three different parameters: hunger levels, fat cravings, and body weight. Compared to the placebo group, the group who ingested Chromium picolinate ate less, craved less fat, and overall lost more body weight.
Pros & Cons
As already mentioned, Powher cut is advertised for women looking to lose extra pounds and are adverse to stimulants. It comprises a variety of plant and mineral extracts, each of which has unique advantages that can help you along the way.
The daily 3g dose of glucomannan is of great help with satiety and digestion when users are following an energy-restricted diet.
The addition of certain minerals counteracts the negative effects of running low on fuel by lifting the mood, among other regular biological processes.
The primary drawbacks are that it doesn't include any vitamins and that some people may find the daily dosing quantity of six capsules to be excessive.
However, if you can look past that, Powher Cut might be the supplement for you.
PhenGold and PhenQ both contain thermogenic ingredients yet, they support users in slightly different ways.
The ingredients list also clearly focuses on mood, energy, and concentration. When on a calorie deficit, these three areas are where you'd be lacking most. In addition, PhenGold contains components that increase thermogenesis.
It accomplishes all of these benefits primarily by incorporating some of the best nootropics into its combination.
PhenGold has 225 mg of caffeine in each dose, which is comparable to the amount found in two cups of coffee. It's also considered a high dose compared to other fat burners.
For the majority of people, the dose is A-okay. However, you might want to steer clear from PhenGold if you're sensitive to caffeine or stimulants in general.
As a fat burner, PhenGold performs superbly. The substantial dose of cayenne pepper extract is responsible for much of its fat-burning abilities.
This substance is one of the top natural fat-burning spices. It works well to suppress the appetite. Its effectiveness in both of these areas is supported by a wealth of clinical data. The capsaicin it contains expedites fat reduction and acts as an effective anti-obesity superfood.
Pros & Cons
PhenGold is a decent fat burner and is very much worth a shot. Its ingredients also seem to be dosed correctly and on top of that, it's suitable for vegans and vegetarians. It also has plenty of positive user feedback to confirm its effectiveness beyond what’s written on its label.
9. Hunter Burn
Just like Instant Knockout, Hunter Burn is created and manufactured by Roar Ambition. This explains some of the similarities and targeting between both supplements. They both stress that they melt fat without sacrificing any muscle mass.
Athletes, gym rats, and anyone who has tried to drop down below 15% body fat knows the struggle that comes with that. Cutting usually burns off a bit of muscle despite all the bulking that previously occurred, which is frustrating.
Hunter burn claims to help with all of that through its premium and scientifically-backed ingredients like cayenne pepper, matcha green tea, and vitamin D.
So, let's look at a few of its ingredients.
Konjac Root Extract — otherwise known as Glucomannan — is a soluble fiber. Soluble fibers fuse with water to form a "gel-like" substance, which in turn helps reduce blood cholesterol and regulate blood sugar levels. It also regulates bowel movements by softening the stool.
White Kidney Bean Extract, on the other hand, has evidence behind it supporting its role in inducing weight loss in high-carb diets by limiting and blocking the absorption of carbohydrates.
So, the claims bear some truth to them.
Pros & Cons
Hunter Burn is a contender because of the variety of its premium ingredients and lack of caffeine. There isn't anything that sets it apart from its competitors except for the caffeine content. Although marketed and priced a touch too aggressively, it's still a solid choice.
What do I need to do to get the best results?
When taking fat-burner supplements, people fall under one of the following categories:
Take a moment to guess which of the following scenarios induces the best results.
You can be sure that the first scenario yields the worst results out of the 4 scenarios.
Scenario number 2 is a tiny bit better than scenario 3, and scenario 4 is the best.
Diet is a crucial component of any attempt to lose weight. You can take the best fat burner supplement and do low-to-moderate-intensity cardio 5 days a week for 45-60 minutes a day, and you still won’t see any results if you’re eating more than what your body needs.
It’s imperative that your diet consists of at least 70%-80% of unprocessed — and preferably — home-made food (e,g. Fruits & vegetables, legumes, whole wheat, lean protein, nuts & seeds).
Make sure to be in a calorie deficit of about 500 Kcal per day (roughly equating to 1 lbs loss per week).
Exercise — a combination of cardio and resistance training — is the cherry on top. It’ll help you speed up your metabolism, burn extra calories, and maintain/build lean muscle mass.
Is this stuff natural?
Fat-burner supplements are usually composed of natural ingredients, rarely anything synthetic. Natural ingredients give users peace of mind that they are not putting something harmful into their bodies and are one of the bigger selling points for most popular brands.
Customers are becoming less and less trustful of foreign and synthetic substances. Therefore, companies market fat burner supplements as beneficial products made out of natural ingredients while striving to be true to their word.
However, the question is: Are they truly natural? It depends on your definition. While the ingredients used aren’t synthetic, they were extracted from their “natural” sources through industrial processes (e.g., dehydration, extraction, etc). While the source may be natural, there is some industrial processing involved, which may be off-putting to some.
Top Choices for Men and Women
If you scour the fat-burner supplements market, you won't find many female-oriented products. That's most likely because the distinction between male-oriented and female-oriented supplements is mainly in the marketing copy and maybe in some constituent dosages.
Regardless of whether you choose a supplement for men or women, the majority of products in this category share a common profile of ingredients.
Best for Man: PhenQ
4.9 / 5
With a list of natural ingredients (a positive trait), PhenQ is considered one of the market's best appetite suppressants. With over 190,000 satisfied customers and a 60-day money-back guarantee, the product sells itself.
Best for Women: Leanbean
4.9 / 5
Leanbean is a fat-burner manufactured by Ultimate Life that is suitable for women. It's vegan, and it contains a wide variety of vitamins, minerals, and plant extracts.
Its most notable feature is the 3g dose of Glucomannan, a dietary fiber that helps with weight loss.
This wraps up our overall review and guides on the best fat burners in the UK at the moment. Our list shows that there's something for everyone, regardless of gender. Packaging and branding are all part of the marketing effort, so if you're sold on a product that's targeted to the opposite sex or a different gender, chances are it'll work for you.
We ran you through the gist of what you need to know about these 10 products, how to set your expectations prior to using any of them, and how to optimize using fat burners.
When it comes to certain advantages other than burning fat, Trimtone is your best stimulant/appetite suppressor; Hunter burn is for those who are sensitive to stimulants (although green matcha tea may provide some measure of caffeine, but nothing to worry about), and PhenQ is the choice for those looking to shed fat while keeping their cognitive functions intact.
It’s worth repeating that a healthy diet coupled with exercise will yield the best results when taking these supplements.
Editor's Pick: PhenQ
It depends on a variety of factors. Usually, regular weight loss that happens during sleep is due to water loss and sweating.
If you take non-stimulant fat burners before sleep, they might raise your body temperature, which causes your body to work overtime to drop your temperature down, therefore, burning calories in the process.
The chances of you experiencing side effects are slim to none. All of the fat burners mentioned in this post are made of 100% natural ingredients and are dosed beneath their toxicity threshold.
You may have difficulties sleeping if you take fat burners that contain stimulants at night, as well as experience some nausea, bloating, and dizziness if you’re sensitive to stimulants or any other ingredient.
Results vary from one individual to another. Some people, usually those who are disciplined with their diet and exercise, will see the best and fastest results within weeks.
Others might take up to a few months.
Most fat burners come with a guarantee. You’ll have to check the product’s official website to make sure the fat burner you choose has this policy in effect.
Usually, yes. Fat burners are not made from synthetic ingredients, which makes them relatively safe.
However, you should always consult first with your primary care physician and gain their approval.