Optimum Nutrition Serious Mass – Ultimate Weight Gainer

Achieve Serious Size Quickly with Optimum Nutrition Serious Mass. This powerful weight gainer makes bulking up easier than ever. Each serving delivers 50g of protein from a blend of Whey Concentrate, Whey Isolate, Casein, and Egg Proteins, packed into two large 167g scoops. With over 250g of carbohydrates and no added sugars, plus creatine, glutamine, and glutamic acid for enhanced strength and recovery, Serious Mass is your go-to for next-level muscle building.

Powerful Weight Gainer for Muscle Growth

High-calorie formula with 1,250 calories per serving

Delivers muscle mass gains and strength

Packed with 50g of high-quality protein

Over 250g of carbs per serving, no added sugar

Fortified with 25 vitamins and minerals

Contains only 7g of fat

This complete meal replacement supports your muscle-building journey without the need for "dirty bulking." With its precise combination of protein and carbs, Serious Mass floods your body with essential nutrients, ensuring you're hitting your daily nutritional goals with ease.

The protein blend in Optimum Nutrition Serious Mass is designed for maximum digestion and absorption, promoting muscle protein synthesis and providing fast-acting nutrients for more intense workouts and quicker recovery. Whey protein concentrate offers a medium digestion rate and high bioavailability, supplying your body with essential amino acids for muscle repair and growth. It also contains enzymes that boost glutathione, the body’s most powerful antioxidant.

Calcium Caseinate delivers a slow-digesting protein that helps prevent muscle breakdown, perfect for bodybuilders and athletes focused on maintaining muscle mass. When combined with a healthy diet and regular exercise, it supports muscle repair and growth.

Egg Albumen adds a rich source of amino acids like arginine, leucine, and methionine, along with vitamins such as A, D, and B-complex for overall health and performance. The addition of Creatine Monohydrate, Glutamine, Choline, and Inositol enhances muscle recovery, strength, and anabolic activity.

Optimum Nutrition Serious Mass prepares you for intense workouts and helps you build serious muscle. Enjoy one of the best-tasting shakes available in Banana, Vanilla, and Chocolate. Add low-fat milk to further boost the calorie content for even bigger gains!