A healthy diet is a balanced diet that includes every nutrient and protein required by the human body. The secret to perfect health is a balanced, healthy diet. Proteins, vitamins, nutrition, everything should be taken in equal portions. There are a lot of dietary supplements that are readily available for people who are dieting. Nutrition shakes are one of them. A nutrition shake is sort of a complete meal plan that is usually used as a replacement meal. A nutrition shake is full of protein and fibers that provide muscle and mass to the human body. These are supplementary diets usually suggested for people who follow a strict diet plan to lose weight. Nutrition shakes are blended with proteins and fibers.