ON (Optimum Nutrition) Serious Mass


Product Details

  • What is Serious Mass: Optimum Nutrition Serious Mass is a high calorie weight gainer which is also high in protein and when taken over time with regular resistance exercise and a balanced diet can help you gain mass and muscle, Who Needs Serious Mass: People with 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
  • What’s in Serious Mass: 1200+ Calories, 50 Grams of high quality Protein and over 250 Grams of Carbohydrates per serving with 23+ Vitamins & Minerals, Creatine & Glutamine
  • When to Consume: Use post-workout and/or between meals to add calories, carbs and protein to your healthy, balanced diet. Authenticity – SMS ON <space> 6 digit unique code on the pack to 57575 or visit our website to instantly check the authenticity of the product. Purity – The neck of the tub is sealed with an induction vented liner inside the cap. The product has a plastic shrink wrap seal around the cap (outside) for protection.
  • Our Ingredients are imported from Europe. Blending is done at a world class facility in India. Country of Origin: India (Product designed in the USA). Manufactured for OPTIMUM NUTRITION, INC. By Tirupati Wellness Pvt Ltd, Surajpur, Nahan Road, Paonta Sahib Dist. Sirmour- 173025 (HP)
SKU: N/A Categories: ,

Optimum Nutrition Serious Mass 6 lb Chocolate is a premium weight gain formula for those who are in need of those extra calories but are having a hard time consuming enough of them. With 1263 calories per serving and 50 grams of protein for muscle recovery, this Serious Mass is highly recommended for weight gain. With 1,263 calories and 50 grams of protein per serving for muscle recovery support, this weight gain formula from Optimum Nutrition makes it the ideal post-workout and between meals shake to aid you achieve your goals. ON Serious Mass help you in developing the physique you have always wanted.

Product Benefits
  • High-Calorie Formula to supports Weight Gain
  • 50 Grams of Protein per Serving for Muscle Support
  • Enhanced with Creatine, Glutamine & +23 Essential Vitamins and Minerals


Add two heaping scoops of Optimum Nutrition Serious Mass 6 lb Chocolate to a blender filled with 24 oz (710 mL) of water. Blend for 45-60 seconds. Then add a few ice cubes and, if desired, other calorie-contributing ingredients and blend for an additional 30-45 seconds.


Mixing two scoops of Optimum Nutrition Serious Mass 6 lb Chocolate with 24 oz (710 mL) of nonfat or low fat milk instead of water will give you a thicker, creamier, higher-calorie shake. New users may find if beneficial to begin with 1/2 of a serving daily for the first week and then gradually increase to 1 or more full servings several times a day.
Optimum Nutrition Serious Mass 6 lb Chocolate is a substantial weight-gain supplement that can be used to feed serious calorie needs in a variety of different ways.

Between Meals

Drink 1/2-1 serving of Optimum Nutrition Serious Mass Chocolate between meals to maintain positive nitrogen balance and support a high-calorie diet.


Begin drinking 1/2-1 serving of Serious Mass 30-45 minutes following exercise to support maximum recovery.

Before Bed

Drink 1/2-1 serving of Optimum Nutrition Serious Mass 6 lb Chocolate about 45-60 minutes before bed to provide nutrients to recovering muscle throughout the night.


For best results use Optimum Nutrition Serious Mass 6 lb Chocolate combined with intense weight training (3-5 times per week) and a sensible whole foods diet. Also, keep in mind that sufficient recovery between workouts impacts your ability to gain lean mass. Allowing at least 48 hours between workouts involving the same body parts is recommended.

Additional information

Weight N/A

3lb, 6lb, 12lb


Vanilla, Chocolate


There are no reviews yet.

Be the first to review “ON (Optimum Nutrition) Serious Mass”

Your email address will not be published. Required fields are marked *