Optimum Nutrition (ON) Serious Mass – Ultimate Weight Gainer for Muscle Growth

Struggling to gain weight or build lean muscle despite regular workouts? If your daily routine makes it difficult to meet high-calorie needs through food alone, a mass gainer supplement can help bridge the gap. Optimum Nutrition Serious Mass is a premium high-calorie formula designed to help you pack on size and support muscle recovery.

Each serving delivers a powerful combination of calories, protein, carbohydrates, creatine, and glutamine—making it an ideal solution for hard gainers or athletes undergoing intense training.

Key Benefits of ON Serious Mass

1. Supports Muscle Growth & Recovery
   Each serving provides 50g of high-quality protein from a multi-source blend to support muscle repair and growth. Combined with essential amino acids, it promotes rapid recovery after intense training sessions.

2. Boosts Weight Gain & Muscle Mass
   With 1,243 calories and 254g of complex carbohydrates per serving, Serious Mass helps increase daily calorie intake. These carbs provide sustained energy to fuel workouts and assist in healthy weight gain.

3. Enhances Strength & Endurance
   3g of creatine monohydrate enhances muscular strength and endurance, enabling you to train harder and push through plateaus. It’s ideal for boosting performance in high-intensity workouts.

4. Reduces Muscle Breakdown
   1g of L-glutamine supports protein synthesis and helps prevent muscle breakdown during heavy training. It aids in faster recovery and protects muscles from exercise-induced stress and injury.

5. Provides Essential Nutrients for Well-being
   Fortified with a comprehensive range of vitamins and minerals, Serious Mass not only supports muscle growth but also boosts immune health, bone strength, and overall vitality.

How to Use ON Serious Mass

• Take 2 heaping scoops (334g) per serving.

• Mix with 710ml of cold water or milk.

• Blend thoroughly for a smooth shake.

• Consume post-workout or between meals to support recovery and calorie intake.

• Stick to the recommended serving size and follow a balanced diet for best results.