Mass Gainer
A mass gainer is a high-calorie shake that combines protein with carbohydrates, helping people who find it hard to eat enough to gain weight. One serving can add several hundred calories. We stock genuine gainers in packs from 1 kg to 12 lbs from leading sports brands.
Mass Gainer: frequently asked questions
Mass gainer or whey protein: which do I need?
A mass gainer suits people who struggle to eat enough calories to gain weight. If you already eat well and only need more protein, whey is the leaner choice.
Can I start with half a serving of mass gainer?
Yes, and many people do. A full serving is a lot of calories, so starting with half lets your stomach adjust before you increase it.
Should I buy the 6lbs or 12lbs pack?
Try the 6lbs pack first if you're unsure about taste or digestion. If it suits you, the 12lbs pack lasts much longer.
Will a mass gainer make me gain fat?
Any extra calories beyond what you burn can add fat. Pair the gainer with regular strength training and adjust the serving if your waist grows faster than your strength.
Is a mass gainer right for you?
- Choose a gainer if you are naturally thin, have a small appetite or train hard and still cannot gain weight.
- Choose whey protein instead if you only need more protein and want to stay lean.
- Start with half a serving to let your stomach adjust, then build up.
- Pack size: 6 lbs is a good first buy; 12 lbs is cheaper per serving once you know you like it.
Gainers work best with regular strength training and proper meals; without exercise the extra calories are more likely to be stored as fat. Add creatine for strength, and read our protein powder guide. Brands include Optimum Nutrition, Kevin Levrone and MuscleBlaze; see our muscle gain page for more.