We may use the wooden barrel theory to describe the human body health, the wooden barrel by represent each kind of nutrient the plank to make, in the middle of the wooden barrel the abundant water are more, represents the human body to be healthier. Any kind of nutrient's lacking, any plank's shortage, can create the health the outflow. Only then each kind of nutrient right amount supplemented, avoids the short board the appearance, can guarantee organism the health, but this cannot leave the diet the diversification. Must know that in the world not any kind or a kind of food's nutrient content, can conform to the human body completely to the nutrition complete demand.



