WHAT IS MASS GAINER?
Mass gainer is a supplement that provides with protein, carbohydrates & fats so that one can gain an amount of size or muscle mass. It has high calorie to promote in gaining muscle mass or weight gain. In short, the focus of the product is"carbohydrates" to gain some mass or size.
WHY TO TAKE MASS GAINER?
Mass gainer should only be taken if you are skinny & not being able to gain muscle mass nor some weight. If you want to gain some extra muscle mass than also it can be taken. There's just carbohydrates & calories in it to provide with good amount of muscle mass.