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.

What Foods Are the Main Sources of Protein, Fat & Carbohydrates?

Published Jul,08 2011 | By Kira Jaines

Proteins, fats and carbohydrates provide the calories your body needs for energy, and a healthy diet contains all three. The trick is to find the right balance and to know which foods contain which source of calories.