Optimum Nutrition Serious Mass 3kg – High-Calorie Weight Gainer

Optimum Nutrition Serious Mass 3kg is a premium high-calorie weight gainer formulated for hard gainers, athletes, and bodybuilders looking to increase calorie intake, build lean muscle mass, and support healthy weight gain. Each full serving delivers 1,200+ calories, 50g of high-quality protein, 256g of carbohydrates, 3g of Creatine Monohydrate, 1g of Glutamine, and 24 essential vitamins and minerals to help fuel intense workouts, enhance recovery, and promote muscle growth. The protein blend includes Whey Protein Concentrate, Calcium Caseinate, and Whey Powder for a sustained release of amino acids to support muscle protein synthesis.

Designed to help individuals who struggle to gain weight, Optimum Nutrition Serious Mass provides the extra calories and nutrients needed to support a calorie surplus. Its carbohydrate-rich formula replenishes muscle glycogen stores after training, while added creatine supports strength and power output during high-intensity exercise. Suitable for post-workout or between meals, Serious Mass is banned substance tested and suitable for vegetarians, making it one of the world’s most trusted mass gainers for bulking and muscle-building goals.