Fat Metaboliser

Updated May 7, 2019.
Published Jan 6, 2017.

Fat Metaboliser seems to be a pretty basic supplement. It probably won’t do much on its own, but it does come with a 14-day diet plan, which will likely be more responsible for any weight-loss than the pills themselves. The supplement seems safe enough, probably because of the weak ingredient quantities. Fat Metaboliser is very cheap and is available to buy from High Street stores such as Holland and Barrett.


  • Inexpensive supplement
  • Includes 14-day diet plan


  • Ingredient amounts
  • Lack of money-back guarantee
  • Lacks product information
Fat Metaboliser Holland and Barrett
Fat Metaboliser is marketed as offering a low cost solution to losing weight naturally. A unique formula (hmm, really?) with sensible meal plan and simple advice on exercise, we see if this cheap diet pill sold by Holland and Barrett could work.

Can you really realise a “new you” with Fat Metaboliser capsules, let’s take a look.

Fat Metaboliser Overview

What you need to know about Fat Metaboliser

Fat Metaboliser is a low-cost supplement that contains very little in terms of ingredients.

It’s questionable if sufficient amounts are present to promote weight loss.

What are the side effects of Fat Metaboliser?

There are no reported negative side effects with this product by the manufacturer.

How much does Fat Metaboliser cost?

One bottle of 56 tablets is available at the very low price of £6.69 (approximately $10) online and UK high street shops like Holland and Barrett.

A larger 120 tablet version is also available costing £12.99, more than enough for 2 months supply.

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Fat Metaboliser Key Features

Found on the shelf of your local Holland and Barrett, Fat Metaboliser is hard to miss in its striking red clear bottle, containing red capsules. We have to say we really liked the bottle design.

Fat Metaboliser Key Points

  • Manufactured by Nutrition Headquarters
  • Available from Holland Barrett in the UK
  • Includes 14-day diet plan

Fat Metaboliser comes with a 14-day Diet Plan that can be downloaded online and contains a 2-page PDF outlining a simple meal plan and simple advice on exercise. The plan will be you consume fewer calories and 25% of your daily intake in fat.

Fat Metaboliser 14-day Diet PlanAlongside the diet plan and exercise you take two capsules per day, one mid-morning and the other mid-afternoon. There is some caffeine and why the manufacturer advises taking near to bedtime.

How to Take Fat Metaboliser

Take two capsules per day, one mid-morning and the other mid-afternoon.

Very little information is available on the supplement in terms of how it will work and by how much. Only two of the ingredients are mentioned in the marketing information (actually within the 2-page diet plan), simply stating brief information on what they could “contribute” to!

Fat Metaboliser Concerns:

  • Lack of money-back guarantee
  • Few consumer testimonials
  • Insufficient ingredient amounts to work

Fat Metaboliser capsules are manufactured by Nutrition Headquarters, who we were unable to find any concrete information on. On a positive note, there seem to be no rip-off or scam reports for Fat Metaboliser reported online.

What does Fat Metaboliser claim to do?

The claims made by the manufacturer are fairly understated, unlike many of the supplements we review.

Fat Metaboliser is….

Designed as an easy to use lifestyle plan to help support weight maintenance when combined with appropriate exercise and a low-fat diet.

Following the 14-day diet plan means you will consume…

1500 calories per day with less than 25% of the calories coming from fat.

Does Fat Metaboliser work?

Considering you take two capsules per day the ingredient amounts are tiny, with the only ingredient with any significant amounts is Green Tea at 250mg!

We have found no studies that indicate 250mg will have a significant effect on weight loss. As there are no clinical studies referenced by the manufacturer, there is no data supporting Fat Metaboliser can promote weight loss.

Lastly, Kola Nut does contain caffeine but with only 50mg in 2 capsules this means there is not likely to be much, if any, significant effect.

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Fat Metaboliser Ingredients

We were surprised by the ingredient amounts in this supplement, although you take two per day there still seems to be very little in it! Two capsules of Fat Metaboliser per day contain the following 7 active ingredients:

  • Vitamin B6 (2.5mg): A water soluble vitamin that plays a critical role in many amino acid reactions and helps release glucose. 179% of the recommended daily amount (RDA) is provided; it’s likely you will consume enough of this vitamin if eating a healthy and varied diet.
  • Green Tea (250mg): A number of studies have shown the active compound in green tea, Epigallocatechin 3-Gallate (EGCG), to have some weight loss properties along with being a potent antioxidant. Unfortunately all research for the effectiveness of green tea as weight loss aid is based on a serving of 400mg.
  • Chromium (200mcg): Found in many diet pills as anecdotal evidence suggests it can help burn and boost energy levels. Recently an in-depth study by the National Institute of Health has found this ingredient to be in-effective for weight loss.
  • Cayenne (5mg): Found in red chilli peppers and responsible for the colour and spicy taste. Studies have suggested when consumed in the correct amounts can increase body temperature helping to boost metabolism, leading to increased calories being burnt. There is so little is this supplement that it’s likely to have any effect!
  • L-Carnitine (10mg): There is little strong evidence showing L-carnitine can promote weight loss. However some studies have shown that supplementation can improve muscle metabolism and performance. There is so little in here that it’s unlikely to be nowhere near enough to cause much if any effect though!
  • Uva Ursi (25mg): Also known as bearberry as it’s a popular choice for bears liking this fruit. Used in traditional medicine to treat bladder and other urinary infections due to its effective anti-inflammatory properties. Very little in this supplement though, especially considering the suggested amounts are around 2-4g per day, which far exceeds the 25mg daily serving seen here!
  • Kola Nut (50mg): Fruit from the Kola tree that’s native to the rainforests of Africa. Used for flavouring and source of caffeine in Cola. Said to ease hunger pains, which is most likely from its caffeine content and why it’s present in some dieting products. Evidence from one Nigerian study involving laboratory mice that were fed a diet showed significant weight loss compared. Studies in humans are less clear.

Fat Metaboliser Side Effects

There are no reported negative side effects with this product by the manufacturer.


The manufacturer warns those suffering from diabetics or hypoglycaemia to only use this product under medical supervision as Chromium is reported to possibly enhance insulin sensitivity and affect blood glucose levels.

Fat Metaboliser Customer Feedback

Consumer feedback on the Holland and Barrett website is above average with a user rating of 3.5 out of 5. One person reported the capsules having “no effect whatsoever” and that they were a “waste of money”. In contrast, a positive consumer review posted “Have been taking on and off for a year, feel they really help with keeping bowls regular.”

We could find no other independent consumer reviews for Fat Metaboliser online, apart from a few forum threads questioning the serving size.

Fat Metaboliser Money-Back Guarantee

There is no money-back guarantee from the manufacturer and appears to be none offered by retailers.

Where To Buy Fat Metaboliser

One bottle of 56 tablets is available at the very low price of £6.69 (approximately $10) online and UK high street shops like Holland and Barrett.

A larger 120 tablet version is also available costing £12.99, more than enough for 2 months supply.

Watchdog Verdict

Fat Metaboliser is a very inexpensive supplement available from reputable UK retailers, like Holland and Barrett. Whilst at first glance this makes this diet pill attractive, looking at the ingredients in-depth you soon realise it may not be such a good deal after all!

The fact is there is unlikely to be sufficient ingredients to work, and so unlikely to see much (if any) weight loss. Any significant weight loss is highly likely due to following the 14-day diet plan, which you could follow without even taking these tablets!

If you wish to take a diet supplement we would suggest looking elsewhere. We reject Fat Metaboliser capsules.

Fat Metaboliser Frequently Asked Questions (FAQ)

How does Fat Metaboliser actually work?

There is very little information about the mechanisms for how Fat Metaboliser tablets actually work. The description is brief simply stating:

Fat Metaboliser provides a combination of vitamins, minerals and botanical extracts, alongside a 14 day diet plan, to help you reach your weight management goals.

The ingredient amounts are fairly low in these tablets and research conducted shows you will likely need more than those supplied in these tablets.

For example, two tablets contain 250mg of Green tea wheres research suggests you need 400-500mg minimum daily amount alongside caffeine. Please see our Green Tea ingredient article for more information.

How do I Take Fat Metaboliser tablets?

You are recommended to take two tablets per day, one tablet mid-morning and one mid-afternoon. You are advised not to take them in the evening before you go to bed.

Are there any Fat Metaboliser side effects?

The ingredients in this supplement shouldn’t cause side effects although it won’t be suitable for some people – see below.

If you do experience any side effects then you are advised to cease taking the supplement and seek medical advice if the problem persists.

Can anyone take Fat Metaboliser tablets?

Most people should be fine taking this supplement but anyone taking prescription medication or who has a pre-existing medical condition should consult with their GP first.

This supplement does contain chromium though which may enhance insulin sensitivity and may affect your blood glucose levels, so diabetics or hypoglycemics should either avoid or take only under medical supervision.

You are advised if you are pregnant or breastfeeding to also seek medical advice prior to taking this supplement.

How good is the Fat Metaboliser lifestyle plan?

Fat Metaboliser offers a free lifestyle plan download for anyone interested in their supplement. Whilst useful for complete beginners, it is fairly basic providing some easy to follow suggestions on dieting in general alongside a 7-day meal plan.

Can I Buy Fat Metaboliser from eBay or Amazon?

We were unable to find this supplement for sale on Amazon. We did find one listing selling Fat Metaboliser tablets on eBay, which looks to be from a private seller and not from an authorised re-seller. As with any eBay purchases, for diet supplements be sure to do your due diligence to ensure you are getting the real product.

Where can I Buy Fat Metaboliser?

The most popular place to buy this supplement is from Holland and Barrett who stock it both in-store and on their website.

For a bottle of 120 tablets the cost is a very reasonable £12.89 or £19.95 if you purchase two bottles at the same time. You also receive 48 Rewards for Life points.

How does Fat Metaboliser compare to Phentaslim?

CriteriaFat Metaboliser ComparisonPhentaslim comparison
Clinically Proven Ingredients
Side Effect Free
Positive Customer Reviews
24/7 Support
Money-back Guarantee

Disclaimer: Our reviews and investigations are based on extensive research from the information publicly available to us and consumers at the time of first publishing the post. Information is based on our personal opinion and whilst we endeavour to ensure information is up-to-date, manufacturers do from time to time change their products and future research may disagree with our findings. If you feel any of the information is inaccurate, please contact us and we will review the information provided.

Have Your Say

20 comments on 'Fat Metaboliser'

  1. Hi, i recently bought a fat metaboliser made by FORZA and i was wondering if it was a good buy and do they really work

  2. Works for me ! Worked last and this year ! It speeded up my metabolism so fast..I was hungry more & eating& losing weight! I do really think it depends why

  3. I discovered my teen was using these .he’s not overweight and don’t need these but ge has since developed a cyst on his nipped and one on the face
    Could it be fat metablisers

  4. I haven’t used these yet and wondered what would be the side effects unfortunately I didn’t really get the information I was looking for. I will start using them and will update on who it’s going

  5. There is nothing wrong with raspberry keytone I’ve lost five pounds already so you talk rubbish and fat burner products do work

  6. the fact is, that the said “anecdotal” evidence is good enough for me.
    Otherwise, how do you explain that word of mouth is the best seller?
    the other fact is, that I trust my friends’ assessment far better than the said “experts”, with all due respect.
    It is simply that my friends do not have an agenda.

  7. I just tried this from protein world. waste of money!!! I can’t emphasise that anymore. They made me ill, even though I was drinking plenty more than usual. I lost my appetite, felt weak, very strong headaches, dizzy. So so silly. Now that I stopped taking them and discovered that was the problem, I will not touch anything like that again. You can loose weight n live a healthy lifestyle doing it completely natural.

  8. I have used the Fat Metaboliser on off for a year. I have to say I think they do work, muffin top disappeared, I m not over weight just really need to shed 6-8 lbs and tone up. I run once a week and eat sensible food but also like a treat. Not drinking alcohol at the Moment as well.

  9. I have bern taking them for three weeks now. I’ve taken up swimming three times a week and altered my diet to the point where I’m not eating fast food or chocolate. I have gained 6lb. They simply don’t work.

  10. I’d been healthy eating and exercising for a couple months and lost 6 lbs then ceased loosing weight so went to Holland and Barrett for some help. They recommended the fat metaboliser and I also bought the controversial raspberry keystone. After 3 days I felt energised and slimmer (though I haven’t weighed myself yet) then I had the worst case of the runs, sorry for the tmi but I was stuck in the loo for an hour. Then I had a swollen and sore tummy- went to bed but buzzing, I have not slept properly in 2 nights, last night I was lucky if I got 10 minutes sleep. This morning my stomach swelling is down and I’m definitely lighter. In my opinion these items have helped boost my metabolism and possibly eliminated extra waste including fat, I’m not sure though if the side effects are worth it. I might just add some weight training into the cardio, that seem to be recommended a lot, particularly for women wanting to loose weight.

  11. I was taking these pills for 2 days and then got a massive rash over all my body. Although I cannot be sure the rash was caused by the pills, my GP did recommend to stop taking these immediately.
    I’m wondering if anyone else had a similar experience?

  12. Hi
    I must say this product works and I’m sooo happy I purchased these I’m 27 and have put weight around my stomach due to working in an office and sitting down all day tried these and I feel lighter and saw how could the worked with my lifestyle however you need to eat well too I’m having yogurt for breakfast , fruits and soup for dinner

  13. I’m using them,I would rather have a “mind set ” where my brain says take these with exercise & diet & you will lose weight…..and I am, lost 3lb in a matter of days (only bought them less than a week ago ) ironically, I was not aware of the diet plan and currently use Chris Powell’s Extreme Weight Loss DVD, 1500Kcals & at least a min of 30mins a day ….3 months on I’m 3 stone lighter and falling ….. oh, and Murray despite typing this at 2am I do sleep like a log. Happy training to all…. whatever you buy or try keep trying … 🙂

  14. Can these tablets cause insomnia. I have only been taking them for 2 days now I cant sleep. I am dog tired, but just lay awake in my bed?

  15. Having been training and body building for over 10 years I like to think I am up to speed with the latest supplements.
    after purely concentrating on weight training over an 8 month period my cardio slipped dramtically and therefore understandably I gained a few extra pounds around the stomach area.

    I then bought these tablets to help trim down and take my word for it they DO work.

    there are to many people that buy these tablets then don’t train and each junk expecting miracles!! rather than writing false reviews on here get off your back side and train!!

    overall with a good diet plan and workout program these tablets WILL speed up your metabolism and help burn calories quicker resulting in weight loss.

  16. I left a review on holland and barrett about htese pills telling them they caused me a great deal of pain and that they didn’t work either,I’m pretty sure they deleted my review because I couldn’t find it again and they emailed me telling me to seek doctor advice :/

  17. I have better experience with Holland & Barrett- the lady was very helpful! 🙂
    Would you like to loose some weight? Omega3+Acai+ Fat Metaboliser+diets+exercises. Without Fat Metaboliser I was loosing 0,5kg per week, with it 1kg! Big difference! Unfortunately in some age is easier to put on weight than loose it and supplements are only helping , you have to do the main job!

    And don’t forget drink water!!!

    I will buy it again!

  18. I went into Holland& barrets asking for help to loose a bit of a pouch due to to much chocolate and thay recommended gat metabaliser I cant see anything happenin I need help as I cant stop eating chocolate at night afterwork because I think iam craving suger due to workin hard and not eating much if nothing during the day can you help point me in the rite direction obviously Holland& barrats cant help they sell alot of things but without someone who knows what thay are talking about there instead of someone who is just there to make moneybuy selling me anything that looks good there will be no repeat buying again help

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