Protein Guide: Benefits of Shakes, Whey & Lean Sources

Protein shakes can be beneficial for hair and muscle growth, but too much protein may cause kidney damage. Identify the best lean sources like beans and eggs while understanding the differences between whey and casein for your diet.

Acid & Stomach Aches

Published Jul,08 2011 | By Jon Williams

The stomach secretes juices including hydrochloric acid (HCL) and an enzyme called pepsin. The acid kills bacteria that cause illness and provides an environment that allows pepsin to digest protein. This acid would destroy the lining of the stomach were it not for the layer of mucus that protects the stomach wall.