₹2,987₹4,69936% off
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100% Authentic
Optimum Nutrition
ON Serious Mass Gainer
₹3,296₹3,79913% off
You save ₹503Inclusive of all taxes
Selling fast — limited stock at this price
- 1,250 Calories & 50 g Multi-source Protein per serving
- Over 250 g Complex Carbohydrates with no added sugar
- Fortified with 25 essential vitamins & minerals
- Enhanced with 3 g Creatine Monohydrate & 500 mg L-Glutamine
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Why buy from Truefit?
- 10,000+ customersLifters across India have ordered from us — and come back.
- Straight from the brandBought from the brand or its official distributor — never the grey market.
- Ships in 24 hoursOrders in before cut-off leave the same working day, sealed and date-checked.
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Description
Optimum Nutrition Serious Mass is the ultimate weight gain and muscle building formula, providing 1,250 calories, 50 g of protein, and over 250 g of carbohydrates per serving to support serious muscle recovery and weight gain goals.
Nutrition facts
Serving size 2 heaping scoops (334 g) · Servings per pack 8 servings (2.72 kg / 6 lb) / 16 servings (5.44 kg / 12 lb bag)
| Per serving | Amount |
|---|---|
| Energy | 1250 kcal, |
| Protein | 50 g, |
| Carbohydrates | 252 g (Sugars: 20 g), |
| Fat | 4.5 g (Saturates: 1.5 g), |
| Creatine Monohydrate | 3000 mg, |
| L-Glutamine | 500 mg, |
| Vitamin A | 800 mcg, |
| Vitamin D | 5 mcg, |
| Vitamin C | 60 mg, |
| Calcium | 600 mg, |
| Iron | 18 mg, |
| Sodium | 530 mg |
How to consume & best timing
- Add 2 heaping scoops (334 g) to 710 ml of cold water or whole milk in a blender.
- Blend for 45–60 seconds until completely smooth.
- Drink post-workout or split into two smaller servings between meals.
Allergen info: Contains Milk, Egg, Wheat (Gluten), and Soy. Manufactured in a cGMP facility handling tree nuts and peanuts.
Description
Optimum Nutrition Serious Mass is the ultimate weight gain and muscle building formula, providing 1,250 calories, 50 g of protein, and over 250 g of carbohydrates per serving to support serious muscle recovery and weight gain goals.
Nutrition facts
Serving size 2 heaping scoops (334 g) · Servings per pack 8 servings (2.72 kg / 6 lb) / 16 servings (5.44 kg / 12 lb bag)
| Per serving | Amount |
|---|---|
| Energy | 1250 kcal, |
| Protein | 50 g, |
| Carbohydrates | 252 g (Sugars: 20 g), |
| Fat | 4.5 g (Saturates: 1.5 g), |
| Creatine Monohydrate | 3000 mg, |
| L-Glutamine | 500 mg, |
| Vitamin A | 800 mcg, |
| Vitamin D | 5 mcg, |
| Vitamin C | 60 mg, |
| Calcium | 600 mg, |
| Iron | 18 mg, |
| Sodium | 530 mg |
How to consume & best timing
- Add 2 heaping scoops (334 g) to 710 ml of cold water or whole milk in a blender.
- Blend for 45–60 seconds until completely smooth.
- Drink post-workout or split into two smaller servings between meals.
Allergen info: Contains Milk, Egg, Wheat (Gluten), and Soy. Manufactured in a cGMP facility handling tree nuts and peanuts.
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Can I change or cancel my order after placing it?
Yes, as long as it has not been dispatched. Call or WhatsApp us with your order number and we will cancel or amend it. Once a parcel is handed to the courier it has to be returned rather than cancelled.
Do you provide a GST invoice?
Yes. A tax invoice is emailed with every order confirmation. If you need it billed to a company GSTIN, add the number in the order notes at checkout.
Can I buy in person instead?
Please do — the shop is in Shivjot Market, Kharar. Everything on this site is stocked there, and staff can talk you through the options in person.
How do I know the supplements are genuine?
We buy direct from brands and their authorised importers, never from grey-market wholesalers. Every tub arrives sealed with the importer's sticker and a batch number you can verify against the brand's own records.