Rs. 1103
Rs. 1239
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Optimum Nutrition (ON) Serious Mass High Protein For Weight Gain & Muscle Building | Flavour Powder Chocolate

(1 kg Powder in packet)
Optimum Nutrition (ON) Serious Mass High Protein For Weight Gain & Muscle Building | Flavour Powder Chocolate
Product Details
Optimum Nutrition (ON) Serious Mass High Protein for Weight Gain & Muscle Building
  • Flavour Powder Chocolate
    Optimum Nutrition (ON) Serious Mass High Protein Weight Gain Powder Chocolate
    Serious Mass is the ultimate weight gain and muscle-building formula. With +1200 calories per 2-scoop serving and 50 grams of protein to support muscle recovery, this powder makes the ideal post-workout and between meals shake for sizing up your goals. Serious Mass provides one with the tools needed to support the weight gain goals.

    Key Ingredients:
    Maltodextrin,Protein blend,Artificial flavour (Chocolate),Creatine monohydrate,Medium-chain triglycerides powder,L-glutamine,Vitamin and Mineral blend,L-Choline bitartrate,Sweetener (INS 950),Inositol

    Key Benefits:
Ideal for people with a very active metabolism that struggle to gain weight, athletes or anyone who has extremely high energy needs that can not be met only with food

Optimum Nutrition Serious Mass is a high-calorie weight gainer which is also high in protein

This product is designed to be consumed with regular resistance exercise and a balanced diet.

It has 1200+ calories, 50 grams of protein and 250 grams of carbohydrates in each serving

It also contains 23+ vitamins, minerals, creatine and glutamine in each serving

Serious Mass is used as a dietary supplement to help meet calorie and protein needs.


  • Directions For Use:
One serving of 2 scoops per day

Prepare using an electric blender

Add fresh or frozen fruits, peanut butter, nuts and other calorie-dense foods to boost your weight gain potential

Have this drink post-workout and/or between meals along with a healthy and balanced diet balanced diet

Tip: For beginners, have 1 scoop per day in the first week


  • Safety Information:
Keep away from direct sunlight

Keep out of reach of children

Read the label carefully before use

Do not exceed the recommended dosage

Content on this page was last updated on 19 November, 2025, by Dr. Rajeev Sharma (MBA, MBBS)