I took a trip to the GNC yesterday and looked at two different brands of gainers. The first, was the GNC Pro Gainer, which had 1850 calories per serving. The other, was a xyience product gainer, and had only like 325 calories in it.
My question is, why are some gainers super-high in calories while others are smaller?
My question is, why are some gainers super-high in calories while others are smaller?