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For hard gainers who struggle to eat enough. Every major mass gainer on Amazon India, compared by calories, protein, and price-per-serving. Starts from ₹1,150.
Mass Gainer vs Whey — Quick Rule
If you already eating 3+ meals a day and just need more protein, buy whey. If you genuinely struggle to eat enough calories and are skinny despite trying, buy a mass gainer. Don't overlap both unless you're tracking macros carefully. Full guide →
Want filters, sorting & every variant? Browse the full Mass Gainer catalogue →
Sorted by price · Calories and protein data per serving · Prices from Amazon.in












Gaining weight requires eating more calories than you burn. For hard gainers, getting 3,000+ kcal from food alone is difficult. A mass gainer delivers 400–1,250 kcal in one shake.
High carbohydrate content promotes insulin release, which drives amino acids into muscles and replenishes glycogen for your next session. Critical for ectomorphs who burn through energy quickly.
With a fixed macro profile per serving, mass gainers make it easy to hit your daily calorie and protein targets consistently — the two most important variables for muscle gain.
Should I take a mass gainer or whey protein?
If you struggle to eat enough calories, a mass gainer (600–1,250 kcal per serving) helps hit your surplus. If you're eating enough but need more protein, whey protein alone is better and cheaper. Mass gainers are for true hard gainers or skinny individuals.
How much mass gainer should I take?
Start with half a serving and build up. Most mass gainers are designed for 1 serving per day. Don't exceed 1 serving unless your daily calorie target is very high (3,500+ kcal). Always track your total daily intake.
When is the best time to take mass gainer?
Post-workout is ideal — muscles are primed to absorb nutrients. You can also take it as a meal replacement if you're missing meals due to a busy schedule. Avoid it right before bed as excess calories while sleeping are more likely to be stored as fat.
Are mass gainers safe?
Yes, when used correctly. The main risk is overeating — mass gainers can push you well above your calorie target. Track your food intake and ensure the protein-to-calorie ratio works for your goals. Lab-tested brands reduce adulteration risk.
What is a good carb-to-protein ratio in a mass gainer?
3:1 to 5:1 (carbs:protein) is standard. A 3kg mass gainer with 30g protein and 90g carbs per serving is typical. Avoid products with very high sugar content — complex carbs (maltodextrin, oats) are better than refined sugar.
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Who actually needs a mass gainer, how to choose the right calorie density, top 6 picks with our edit verdicts, and how to avoid gaining fat instead of muscle.