Health food is a general term applied to all kinds of food that is considered more healthy than the types of food sold in supermarkets.For example,whole grains,dried beans,and corn oil are health foods.A narrower classification of health food is natural food.This term is used to distinguish between types of the same food.Raw honey is a natural sweetener,while refined(提炼的)sugar is not.The most exact term of all and the narrowest classification within health food is organic food,used to describe food that has been grown on a particular kind of farm.Fruits and vegetables that are grown in gardens,that are treated only with organic fertilizers,that are not sprayed with poisonous insecticides(杀虫剂),and that are not refined after harvest,are organic food.
In choosing the type of food you eat,then you have basically two choices:inorganic,processed(加工)food or organic,unprocessed food.A wise decision should include study of the reason why processed food contains chemicals,some of which are proved to be poisonous and that vitamin content is greatly reduced in processed food