Critical Mass Professional is a chocolate-flavoured mass gainer powder from one of the UK’s most established sports nutrition brands, available here in a substantial 6000 g tub. Each 150 g serving (2.5 scoops) delivers 566 kcal alongside 42 g of protein, 75 g of carbohydrates, and 10 g of fat, making it a calorie-dense formula designed to complement high-volume training programmes.
The nutritional profile also includes 5 g of L-leucine and 5 g of glutamine peptides per serving, with only 2.90 g of sugars per portion despite the rich chocolate flavour. The relatively modest sugar content sits alongside 4.6 g of fibre per serving, rounding out a formula that has been carefully constructed for those who want a substantial calorie contribution from a powder rather than whole food alone.
With 40 servings per tub, the 6000 g format suits dedicated trainers who use a mass gainer as a regular part of their nutrition strategy. The chocolate flavour mixes well into milk or water and carries a smooth, satisfying taste that makes it easy to hit a higher daily calorie target without relying solely on additional meals.







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