High levels of lead have been found in protein powders. See which vegan, mass-gainer and whey products to avoid.

Which whey protein powder is best? Anyone looking to pack on some lean muscle mass can benefit from consuming whey protein powder before or after their workout. It is also popular as a meal replacement for people looking to shed a few pounds. Whey protein ...

Like other protein powders, clear protein often contains sweeteners, sugar substitutes, or flavoring agents (like stevia or monkfruit) to make it palatable, according to Dada. (Otherwise, it might have a “sort of bitter taste to it, or an aftertaste” due to its lower pH and resulting higher acidity level.)

Are you curious about the new protein-boosted milk at Starbucks but want the lowdown on what's in it before you try it? Here's everything you need to know.