









Product Benefits
Helps in Mass Gaining
Generally Consumed With Water
ON (Optimum Nutrition) Serious Mass, 3 kg (6.6 lb), Chocolate
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- What is Serious Mass: Suitable for Vegetarians, 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
- 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 Authenticateon.in 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)

The use of such supplements promotes better build-up and repair of the muscles every time. One of the famous products that you might have come across is on serious mass gainer of 3kg chocolate. You can always opt for the greatest results!
Health Benefits Of ON Serious Mass, 6.6 lb Chocolate
- Get More Calories
- Gain Muscle Mass
- Support Muscle Recovery
When to Consume ON Serious Mass, 6.6 lb Chocolate
Precautions To Take When Consuming ON Serious Mass, 6.6 lb Chocolate
It is your responsibility to read the label carefully. This is done to ensure you have read the dosage consumption carefully and do not exceed it anyway. Further, you can also connect with the nutritionist to understand the correct doses.
The storage guidelines should also be understood in detail so that the supplement can be preserved for long durations. Make sure that you don’t indulge in overconsumption.
Where to Buy?

When should you consume ON Serious Mass?
When your body requires replenishment, the best time to consume ON Serious Mass is post-workout. It can, however, be taken between meals to supplement your diet with extra calories.
How do I ensure that my ON Serious Mass product is genuine?
You can check the product's authenticity by texting the 6-digit unique code on the pack to 57575 or visiting the ON website. Also, make sure the tub's neck is sealed with an induction vented liner inside the cap and that the cap is wrapped in plastic shrink wrap.
What distinguishes ON Serious Mass from other weight gainers?
ON Serious Mass stands out due to its high calorie, protein, and carbohydrate content. It also contains over 23 vitamins and minerals, as well as creatine and glutamine, making it a well-rounded mass-gaining supplement.
Buying Guide
Serious Mass by ON (Optimum Nutrition) is a high-calorie weight gainer designed to assist people who have difficulty gaining weight and muscle mass. It is high in essential nutrients and provides an easy way to increase caloric intake and support muscle growth. The 6.6 lb chocolate flavor container is a delicious option for those looking to spice up their weight gain regimen.
High-Calorie Formula
ON Serious Mass is designed to provide a significant calorie boost for people who want to gain weight. It provides a convenient and efficient way to meet your daily calorie requirements, with over 1,250 calories per serving.
Essential Nutrients
Serious Mass contains essential nutrients for muscle growth and recovery in addition to a high calorie content. It has 50 grams of protein, 252 grams of carbohydrates, and 25 essential vitamins and minerals per serving, giving your body the fuel it needs to build and repair muscle tissue.
Chocolate Flavour
Serious Mass comes in a 6.6 lb container with a delicious chocolate flavor, making it a tasty option for those who enjoy a sweet treat while meeting their weight gain goals. The enjoyable taste can help make high-calorie shake consumption more enjoyable and sustainable over time.
Before incorporating any weight gain supplement into your diet, consult with a healthcare professional or a registered dietitian. They can provide tailored advice based on your specific requirements and objectives.
User Guide
- Serious Mass by Optimum Nutrition is a vegetarian-friendly, high-calorie weight gainer that can help you gain muscle and mass when combined with regular resistance training and a healthy diet.
- Serious Mass is best consumed post-workout or between meals to supplement your diet with extra calories, carbohydrates, and protein.
- Users can verify the product's authenticity by sending an SMS to 57575 with the unique 6-digit code found on the package, or by visiting Authenticateon.in. Each tub is pure, with an induction vented liner inside the cap and a plastic shrink wrap seal around the cap for added protection.












