As the name would suggest, Protein World claim this capsule is capable of ‘metabolising’ (i.e. burning) your body fat.. but is that really true?
In this Protein World Fat Metaboliser review we’re taking an in-depth look into whether this product is something you should consider using for effective weight loss results.
Readers please note that statements on this page are fair comment based on observation. This content is produced on a matter of public interest. Statements on this page are our honest opinion.
What Is Protein World Fat Metaboliser?
Fat Metaboliser Capsules are a 4-per-day fat burner product created by the UK-based Protein World.
One bottle of Protein World Fat Metaboliser costs £17.99, contains 90 capsules, and will last users for approximately one month based on the set directions of 3 capsules per day; it is available from the official Protein World Fat Metaboliser website, as well as Boots, Amazon and eBay.
This product was previously known as “Fat Melter Capsules” until April 2015 when Protein World was ordered to change the name as the UK Advertising Standards Authority (ASA) deemed the product title was a false claim and misleading.
We considered the product’s name “Fat Melter” was in itself a health claim, which implied weight loss. We had not seen evidence that “Fat Melter” was an authorised health claim. (source)
This product is part of their Slender Plan bundle and comes with directions to use it with the Slender Blend shake for ‘best results’. When it comes down to it, this product isn’t exactly anything groundbreaking; it is essentially just a cocktail of stimulants and B vitamins that users can use to boost their energy levels and lower fatigue.
Do Protein World Fat Metaboliser Capsules Work?
Yes and no. If your plan is to use this product in conjunction with a calorie-controlled diet and exercise it can certainly help you towards your goals due to the formula being able to boost energy levels and reduce fatigue, meaning you can work harder for longer in the gym.
If your plan was to take these capsules and put in absolutely no effort, you’ll not notice a single improvement to your physique. To be crystal clear – there are no scientifically proven ingredients for weight loss inside this product.
The Pros & Cons Of Protein World Fat Metaboliser
Below is a complete list of everything we believe could be viewed as either a positive or negative:
- Will boost energy levels.
- Contains Green Tea Extract which is rich in antioxidants.
- Has B vitamins which can contribute towards energy levels and alertness.
- Doesn’t contain any ingredients that directly and independently “burn body fat”.
- Product has some potentially negative side effects.
- Unlikely to suppress user appetite levels.
What Are The Protein World Fat Metaboliser Capsules Ingredients?
We have found the following ingredient information via the Fat Metaboliser product page on the Protein World website:
Each two-capsule serving contains the following: Vitamin B6 5.6mg, Vitamin B12 25µg, Caffeine Anhydrous 200mg, Green Tea Extract (40% Polyphenols) 200mg, L Tyrosine 200mg, Guarana Extract (22% Caffeine) 150mg, Yerba Mate Powder 100mg, Choline 100mg, Alpha Lipoic Acid 100mg & Cayenne Powder 50mg.
Is Protein World Fat Metaboliser Suitable For Everyone?
We do not recommend usage of this product for persons under the age of 18, or women who are pregnant or breastfeeding.
Additionally, increased inside Protein World Fat Metaboliser may worsen symptoms of IBS, anxiety, and bipolar disorders.
Finally, discontinue using this product two weeks prior to surgery.
What Are The Protein World Fat Metaboliser Capsules Side Effects?
We have found the following side effect information based on our research into the ingredients:
- Stomach irritation
- Nausea and vomiting
- Increased heart rate
- Increased blood pressure
- Diuresis 
Note: These side effects are possible but may not be the typical user experience.
Are There Any Protein World Fat Metaboliser Reviews From Customers?
We have found the following Protein World Fat Metaboliser review testimonials via Amazon:
Didn’t see any change, won’t buy again.
Hard to tell with these things how long before you see effects. Will be getting another packet to give it a good month trial.
Took these for a month, didn’t notice any difference at all.
Our Final Verdict On Protein World Fat Metaboliser
To conclude our Protein World Fat Metaboliser review, it’s a bit of a mixed bag – there are things that we like about it and things that we aren’t too blown away by. The price is rather high and the ingredient product doesn’t contain a single scientifically proven weight loss ingredient.
The overall tone of reviews left on the product via Amazon were pretty negative – most people said they saw no results.. this is probably because they were not using it as a pre-workout supplement as it ideally should be used as. Finally the lack of money-back guarantee and potentially negative side effects just totally put us off this product.