Why you'll like it
Optimum Nutrition Serious Mass is a high-calorie gainer for people who struggle to put on weight. The 3 kg Chocolate tub lists 1,243 calories, 50 g protein and 254 g carbs per serving. Choose Chocolate or Vanilla in 3 kg or 5 kg.
1,243
calories (on tub)
50 g
protein (on tub)
254 g
carbs (on tub)
3 & 5 kg
sizes
- Flavours: Chocolate and Vanilla.
- 3 kg or 5 kg tubs.
- Each tub carries an ON authenticity code.
- Compare all mass gainers or see all Optimum Nutrition products.
Specifications
| Brand | Optimum Nutrition |
|---|---|
| Product type | Mass gainer |
| Flavours | Chocolate, Vanilla |
| Pack sizes | 3 kg, 5 kg |
| On the tub | 1,243 calories, 50 g protein, 254 g carbs per serving (3 kg Chocolate) |
| Sold by | Nutri World, Sadar Bazar, Jhansi (sealed, original packs) |
| Delivery | Free same-day delivery in Jhansi city · 3–7 days across India |
| Payment | Cash on Delivery available · free shipping above ₹999 |
How to use
- Mix the serving on the label with milk or water.
- One full serving is large; many people split it into 2 shakes.
- Have it between meals or after training.
- Close the lid tightly and keep it dry.
Good to know
- Sealed, original pack from Nutri World. Check that the seal is intact and the batch number, expiry date and FSSAI details are printed. Verify the code on the ON seal by SMS or at authenticateon.in, as printed on the tub.
- Contains milk. Check the allergen note on the tub.
- Cash on Delivery and free shipping above ₹999. Free same-day delivery in Jhansi city, or pick it up from our store in Sadar Bazar.
- Not sure which size or flavour to pick? Message us on WhatsApp before you order.
FAQs
Is ON Serious Mass original on Nutri World?
Yes. We sell only sealed ON tubs. Each tub has an authenticity code you can check by SMS or on authenticateon.in.
How many calories per serving?
The tub lists 1,243 calories, 50 g protein and 254 g carbs per serving.
Gainer or whey?
A gainer adds calories as well as protein; whey is mostly protein. See whey protein if you only need protein.
Details are as published by the brand and can vary slightly by flavour or batch. Always read the label on your pack. Supplements are not a substitute for a balanced diet. Consult a doctor before use if you are pregnant, breastfeeding, under 18 or have a medical condition.