Optimum Nutrition Serious Mass 2.73kg

Optimum Nutrition Serious Mass 2.73kg is a weight-gainer powder combining protein and carbohydrates. Compare its nutrition panel and labelled serving size with your requirements before choosing a flavour.

What you are buying

• Pack size: 2.73kg.
• Powder format for mixing according to the pack directions.
• Choose an available flavour on this page.

Compare the right information

A serving of a weight-gainer formula can be larger than a serving of whey protein. Check the serving weight, energy and protein on the exact label rather than comparing scoop counts alone. Ingredients, allergens and nutrition can vary by flavour or formula version.

Browse our weight-gainer range, or read how to compare protein powder value. Check your final delivery charge at checkout.