As organic food is not produced or processed by using chemical pesticides or chemical fertilizers, it does not contain..
The human body's need for protein is actually the need for amino acids, because protein can not be directly used in the human..
Vitamins are a kind of trace organic substances that people and animals must obtain from food in order to maintain..
Minerals are the important raw materials of body tissues, such as calcium, phosphorus and magnesium are the main raw materials..