The nutritional value of foods and nutrients, does it not?

It is often said in the daily life of a food's nutritional value of high or low, often based on food that contained the type and quantity of nutrients to determine how many of the. However, due to the natural world without any kind of food containing the nutrients can be a separate body to meet the needs of all, so this is for the different needs of the people, but relatively speaking. It is often such as the thin pork and the nutritional value of soybeans, mainly referring to the type of food protein contained in the terms of the high volume. For those who need to add protein, lean pork and soy nutritional value is quite high. But for those who do not need to add protein of people, lean pork and the nutritional value of soybeans it is not so important. To meet the human needs of a variety of nutrients, the human must be different from the source of dietary intake of various food varieties.