SupplementsFor people struggling to gain weight, mass gainers promise an easy shortcut. Here's what's actually in the tub, and whether it's worth it.
Primarily a large amount of carbohydrate (often from cheap sources like maltodextrin) combined with a moderate amount of protein โ essentially a high-calorie shake designed to make hitting a calorie surplus easier for people who struggle to eat enough.
People with a naturally fast metabolism or small appetite who struggle to consume enough calories through regular meals to support muscle gain โ for this specific group, the convenience genuinely solves a real problem.
A homemade shake โ milk, banana, peanut butter, oats, and a scoop of regular whey protein โ often provides similar calories and better overall nutrition quality at a meaningfully lower cost than commercial mass gainer products.
The high sugar and refined carbohydrate content in many mass gainers can contribute to excessive fat gain alongside muscle if not paired with adequate training volume โ 'dirty bulking' isn't an efficient strategy even when the goal is gaining weight.
Decades of research, a strong safety record, and still surrounded by myths. Here's the straightforward version.