Mass gainer protein powders, also called weight gain protein powders, are specifically formulated for athletes and weightlifters looking to pack on pounds — particularly lean muscle mass.

Flavored varieties of this protein powder contain stevia and xylitol, a sugar alcohol that may cause some bloating and discomfort in some individuals. If you’re trying to gain weight ...

making them ideal for healthy weight gain. Protein powders and shakes are also convenient options for adding extra calories without overloading on unhealthy fats or sugars. 4. Boosts Metabolism ...

They include products like Optimum Nutrition Serious Mass weight gainer protein powder and Naked Mass weight gainer protein powder. However, supplements aren't regulated by the FDA, so you might ...

and unintentional weight gain. Whey protein has generated quite the buzz among athletes and exercise enthusiasts as being the "gold standard" of protein supplements. To determine whether whey ...