• Help boost calories intake with 1,250 kcals per shake*
  • 50 grams of Whey Protein – Helps build and maintain muscle
  • 251 g▲ CARBS – Helps support muscle recoveryᵒ
  • 25 Vitamins and Minerals

2 in stock

Optimum Nutrition



Serious weight gain requires serious calories. However, those who need the extra calories most often have the toughest time consuming enough of them. For many aspiring to be bigger, a highly active metabolism, weaker appetite and on-the-run lifestyle can make it a real challenge to consume enough calories through whole foods alone. Serious Mass is the ultimate in weight gain formulas. With 1,250 calories per serving to boost daily calorie intake, 50g high protein to support muscle growth and repair, over 250g carbohydrates helping support muscle recovery , and now with 3g added Creatine to support performance per serving, you’ve got nothing to lose and lots to gain. It is time to stop thinking small and get serious – SERIOUS MASS®

Ready to mix powder with protein, carbohydrates, vitamins and minerals, with sweetener


Recommended Use:

Mix 2 heaped scoops with 710 ml of water. You can also add a serving to smoothies, protein balls, muffins, porridge or other meals as another great way to get a protein hit in the kitchen.



maltodextrin, whey protein concentrate (milk), calcium caseinate (milk), creatine monohydrate, flavourings, milk mineral complex, medium-chain triglycerides (milk), egg albumen, potassium phosphates, colour (beetroot red), sodium chloride, vitamins and minerals blend (sodium-L-ascorbate (vit. C), ferric pyrophosphate, D-alpha-tocopheryl acetate (vit. E), nicotinamide (vit. B3), zinc oxide, retinyl acetate (vit. A), calcium D-pantothenate (vit. B5), sodium fluoride, manganese sulphate, potassium iodate, cyanocobalamin (vit. B12), D-biotin, chromium chloride, pteroylmonoglutamic acid (folic acid), cholecalciferol (vit. D3), sodium selenite, cupric citrate, pyridoxine hydrochloride (vit. B6), thiamin hydrochloride (vit. B1), phylloquinone (vit. K1), riboflavin (vit. B2), sodium molybdate), glutamine peptides (gluten), L-glutamine, magnesium oxide, whey powder (milk), inositol, L-ascorbic acid (vit. C), sweetener (sucralose), antioxidant (tocopherol-rich extract), calcium D-pantothenate (vit. B5), pteroylmonoglutamic acid (folic acid

Allergy advice

For allergens, see ingredients in bold. May contain traces of soy,  nuts  and peanuts