GNC Pro Performance Weight Gainer | 3 Kg | Double Chocolate vs Optimum Nutrition (ON) Serious Mass | 1 Kg | Chocolate

Optimum Nutrition (ON) Serious Mass | 1 Kg | Chocolate is currently cheaper, with the lowest live price at ₹1,085 on Flipkart. The other option is ₹1,314 more expensive at its best price. Prices change daily — Whey2Much tracks both in real time so this answer stays current.

Optimum Nutrition (ON) Serious Mass | 1 Kg | Chocolate is currently carried by 7 retailers on Whey2Much, more than the other option's 6. More retailers means more pricing competition and a higher chance of finding a deal on a sale day.

Both are mass gainer products, so the comparison is direct. The best answer depends on what you optimise for: Optimum Nutrition (ON) Serious Mass | 1 Kg | Chocolate wins on raw price, Optimum Nutrition (ON) Serious Mass | 1 Kg | Chocolate on retailer availability, and GNC Pro Performance Weight Gainer | 3 Kg | Double Chocolate currently has the bigger live discount. Read the brand intros via the brand link above each product card for positioning details.