Optimum Nutrition - Serious Mass 5.44kg


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Optimum Nutritions Serious Mass is your path to packing on the kilograms quickly! With 1250 calories in just one scoop and 40g of protein, this is for the peeps who are serious about gaining weight. Perfect to use post workout or even between meals, combine this with powerful workouts to help you get big quick.

Each scoop also contains 250g of carbs, creatine, glutamine, and glutamine peptides, alongside 25 minerals and vitamins – it’s everything you need all in the one package.