USN Muscle Fuel Anabolic Mass Gainer, Chocolate, 4 kg

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Product guide

USN Muscle Fuel Anabolic Mass Gainer, Chocolate, 4 kg

USN Muscle Fuel Anabolic is a chocolate-flavoured mass gainer powder combining protein and carbohydrates with creatine, amino acids, vitamins and minerals. Its stated 54 g protein and 77 g carbohydrate make it a substantial shake for people seeking a calorie- and carbohydrate-containing option around training, rather than a protein-only powder.

At a glance

The product description states 54 g protein and 77 g carbohydrates per serving, alongside creatine, BCAAs, amino acids, vitamins and minerals.
The directions say to mix 3 heaped scoops with 500–600 ml cold water, using a blender or shaker for about 30 seconds.
The listing describes it as caffeine-free and vegetarian, but it contains milk-derived ingredients and lists egg, hazelnuts, peanuts and soy as allergens.

Price

£55.78Save 20%

Reference price: ~~£70.00~~

Price checked: 14 Nov 2026

View offer Ahead of Black FridayExplore the selection

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Pros and cons

Pros

Combines protein, carbohydrates, creatine and other listed ingredients in one mass-gainer powder.
The chocolate powder is described as mixable with water, with directions specifying a large 500–600 ml serving.
A 4 kg tub is listed as containing 26 servings.

Cons

The stated serving uses 3 heaped scoops, so this is a sizeable drink rather than a small protein-only shake.
The ingredient and allergen information makes it unsuitable for people avoiding milk, egg, soy, hazelnuts or peanuts.

Technical specifications

16 specifications

Identity
Brand	USN
Model	USN Muscle Fuel Anabolic
Flavour	Chocolate
Diet type	Vegetarian
Formulation	Multi-Supplement
Age range	Adult

Nutrition and contents
Protein per serving, as listed	54 g
Carbohydrates per serving, as stated in product features	77g
Container weight	4 Kilograms
Servings per container	26.0
Caffeine content description	Caffeine Free
Protein sources listed	Egg, Soy, Whey
Allergen information	Contains: Eggs, Hazelnuts, Peanuts, Soy
Country of origin	Belgium

Use and dimensions
Recommended uses	Body Building, Post-Workout, Weight Gainer
Dimensions listed	29.2 x 29.2 x 25.5 centimetres

What to know before buying

Listing details to confirm

Directions specify 1 to 2 servings daily, with different initial and ongoing schedules by body weight. The warning says not to combine it with another creatine supplement or exceed the recommended intake. Consult a doctor before use, especially with a medical condition. It is not suitable during pregnancy, lactation or for anyone under 18, and the listing advises that supplements should not replace a balanced diet. Customer feedback is mixed on perceived quantity, with some saying the powder fills only about half the tub. The listing gives a 4 kg weight and 26 servings, but does not confirm that the tub should be full. Check the ingredient label for allergens and lactose tolerance.

Who is it for?

A good fit for

Adults seeking a mass gainer that combines protein and carbohydrates with creatine and other listed supplement ingredients.
People who want a chocolate-flavoured powder with directions for mixing it into a large water-based shake.
Vegetarians who can consume the listed milk, egg, soy, hazelnut and peanut allergens.

Less suited to

People avoiding milk, egg, soy, hazelnuts or peanuts, or those unsure whether the product suits their lactose tolerance.
Anyone under 18, pregnant or lactating, or seeking a caffeine-containing product.
Buyers looking for a low-carbohydrate, protein-only powder or a small serving size.

USN Muscle Fuel Anabolic Mass Gainer, Chocolate, 4 kg · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 470 ratings

5 stars68%68%
4 stars20%20%
3 stars6%6%
2 stars2%2%
1 star4%4%

Customer feedback highlights favourable impressions of chocolate taste and effectiveness, while views on value and quantity are mixed. Some customers say the powder fills only about half the container. For buyers considering a 4 kg tub listed at 26 servings, that concern relates to apparent tub fill rather than a confirmed discrepancy in the stated net weight. The overall rating distribution leans positive, but does not explain individual experiences or settle the mixed value and quantity concerns.

Positive themes

Customers praise the chocolate flavour.
Customer feedback describes the product as effective.

Mixed feedback

Feedback is mixed on value for money, with some finding it worthwhile and others not.
Some customers report that the powder fills only about half the container.

Frequently asked questions

How much protein and carbohydrate does the listing state?

The product features state 54 g protein and 77 g carbohydrates per serving. These are listing claims, not independently verified measurements.

How is the powder prepared?

The directions say to add 3 heaped scoops to 500–600 ml of cold water and mix with a blender or hand-held shaker for about 30 seconds.

Does this contain caffeine?

The listing describes it as caffeine-free.

What allergens are listed?

The details list eggs, hazelnuts, peanuts and soy. The ingredients also include milk-derived components and oats containing gluten, so check the current pack label if you have an allergy or intolerance.

Can it be taken with another creatine supplement?

The product warning says not to combine Muscle Fuel Anabolic with any other creatine supplement. Follow the label directions and consult a healthcare professional if you have concerns.