The amount of whey protein powder you should use depends on your goals and workout routine.

As whey and casein are both proteins from milk, whey concentrate can contain some traces of casein protein.

Whey protein powder has been shown to be very good for those seeking weight loss.

Most whey protein powders are very easy to digest, especially powders made with "whey isolate" or "whey hydrolysate".

Whey protein powder is fairly easy to use and most product packaging provides information about recommended serving size and use.

The quick answer is no, whey protein is not paleo as it's an isolated fraction of whole cows milk.

Yes, whey protein powder is safe for most people, but may not be advisable for people with some pre-existing health conditions or lactose intolerance.

No, whey protein powder is not bad for you, in fact quite the opposite and have a great many health benefits including muscle development and weight loss.

Yes, whey protein powder does lose its protein efficiency and expire, but it lasts a good long while when stored correctly.

Yes, whey protein powder is made from a milk byproduct of the cheese making process and is a complete protein with high levels of all essential amino acids.