Optimum Nutrition Serious Mass – Vanilla (12 lb / 5.6 kg)

Optimum Nutrition Serious Mass in Vanilla flavour is a premium, high-calorie weight gainer formulated for individuals with high energy demands, fast metabolisms, or those struggling to gain muscle mass. Each serving provides a massive dose of calories, high-quality protein, and complex carbohydrates, enhanced with creatine monohydrate, glutamine, and a full spectrum of vitamins and minerals. Designed for hard gainers, it supports intense training, boosts post-workout recovery, and promotes size and strength gains. The smooth Vanilla taste makes it easy to consume as a post-workout shake or high-calorie meal replacement.