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88% Customer Satisfaction

Monster Calories 4kg

Key Features

603 Kcal per serving

33g Multi-Stage release proteins

65g Carbohydrates

Number of ServingsNumber of Servings: 28

Cost Per Servings£0.89 Per Serving

Loyalty Points Worth 25 loyalty points


RRP £64.99

Save £40.00

92% (168 reviews)100 0

Buy 2 for £23.74 each OR Buy 3 for £23.12 each

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Order Before 6pm for same day despatch (Before 10am on Sunday)

Overview Ingredients Per Serving Directions Delivery Reviews

Review Score

92% (168)1000

What our customers say

"I find it hard to get a shake that I like the taste of. The matrix brand so far has all tasted really good... "

"Mixes well even without the use of a blender..."

What is Matrix Monster Calories?

Matrix Monster Calories is a weight gainer that incorporates important muscle building ingredients that are often overlooked in the world of bodybuilding. Matrix Monster Calories focuses on quality carbohydrates and 'good fats', in addition to a substantial protein content. Monster Calories really earns its name by packing in a staggering 603 Kcal per serving, with weight gain supported even further by combining this colossal value with 65g of carbohydrates and 33g of protein.

How will Matrix Monster Calories benefit you?

Matrix Monster Calories is designed specifically for hard gainers who have struggled to put weight on effectively in the past. Individuals often respond differently to ingredients and standard weight gainers that rely solely on high protein and carbohydrate ratios sometimes fail to cut it for some.

The fatty acids included have a dual purpose on the functioning of Monster Calories. In addition to increasing the calorific content, they offer the body an extra fuel source other than carbohydrate which further protects amino acids from being dragged into an energy producing function, leaving them spare to construct muscle mass.

Key Factors

  • 'Good fat' complex: Medium chain triglycerides and Omega-6 contribute towards an amino acid sparing environment, in addition to their antioxidant abilities which can help reduce muscular inflammation post training.
  • Carbohydrate blend: Fast and slow absorbing carbohydrates help maintain a substantial insulin presence immediately post consumption and onwards. Waxy maize is the rapid acting of the carbohydrate pair, and the oats takeover when the maize has completed its digesting process.
  • Protein Blend: Multi-stage release protein blend.

Ideal time to use Matrix Monster Calories

Ideal Time to use Monster Calories

Who is Matrix Monster Calories ideal for?

Matrix Monster Calories is perfect for individuals who are seeking rapid gains in muscle size and overall body weight.

Quality Assurance

When using Matrix Nutrition supplements you can have 100% confidence in the quality of both our products and suppliers. Each product undergoes multiple-rounds of testing before it reaches our customers, ensuring quality and consistency is constantly at the forefront of everything we do.

Produced at a state of the art UK facility, all our Protein Powders are independently tested to clearly identify protein purity and these certificates can be seen under every protein powder. We don’t use cheap re-sealable bags either; we prefer to spend more on our side to ensure you get a robust, easy to use product and a FREE scoop is included in every product.

Next Day Delivery - Only £3.99

Order before 6pm for same day despatch.

Delivery on all items is only £3.99 and will be sent by next day delivery as standard. Delivery charge applies per order regardless of number of items purchased. Delivery costs to other areas and countries depends on distance and weight. The next day service is not currently available to customers living in highlands and islands but we will aim to get your order to you within 2-3 working days instead.

Free Next day Delivery when you spend £65.

Available to UK mainland customers. The next day service is not currently available to customers living in highlands and islands but we will aim to get your order to you in 48 working hours instead.


Matrix Protein Blend – (Whey Protein Concentrate (Milk), Milk Protein Concentrate, Whole Milk Protein, Soya Protein Isolate). Maltodextrin, Dextrose Monohydrate, Micronised Oat Flour, Waxy Maize, Flavouring, Natural Colourings, Stabilisers (Citric Acid, Malic Acid), Xanthan Gum, Sweetener: Sucralose.

Allergy Advice For allergens, including cereals containing gluten, see ingredients in bold. May also contain nuts, gluten, eggs and peanuts.


Values based on:

Per 140g serving (with water)

Per 140g serving (with 500ml whole milk)

Energy (kcal/g)

2531 / 605

3761 / 899

Protein (g)



Carbohydrates (g)



Of which sugars



Fat (g)



Of which saturates



Sodium (g)



Fibre (g)



Suggested Use

Add 2 scoops to a shaker or blender with 500-600ml of water or milk (full fat milk will increase your calorie intake).

Consume 1-2 shakes per day.

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