Optimum Nutrition Serious Mass – Strawberry NAS (6 lb / 2.73 kg)

Optimum Nutrition Serious Mass – Strawberry NAS (6 lb / 2.73 kg) provides clean, calorie-rich support for mass gain without added sugars. Each serving contains over 1,200 calories, 50g of protein, and complex carbs, ensuring you have the energy and nutrition for recovery and growth. Fortified with vitamins, minerals, and creatine, it supports overall performance and helps replenish glycogen stores. The Strawberry NAS flavor is sweet yet mindful of sugar content, making it perfect for clean bulking. Designed for hard gainers, it promotes muscle growth and endurance while avoiding excess sugar intake. With 6 lbs per tub, it provides a consistent supply for bulking phases. Ideal as a post-workout shake or meal replacement, Serious Mass ensures you stay in a calorie surplus for maximum gains. Globally trusted, it is a proven formula for those aiming to increase muscle size, strength, and recovery efficiently with clean, nutrient-dense calories.