Food should be reasonably collocation

In the social material is rich, the technology level increased today, how to eat more scientific or the healthier to people is the current issue of concern. Someone summarized the current people in eating pursuit as "eat miscellaneous" "eat coarse" "eat wild" and "vegetarian" four characteristics. From the perspective of nutrition, the four characteristics should be reasonable collocation, may be more in line with the needs of the people of all kinds of nutrition in old people. Reasonable collocation is very important.