Here are entered works on the sum of the physiological processes involved in the assimilation and utilization of nutrients for proper body functioning and health. This heading may be subdivided by place to indicate the nutritional status of a group of people in the place. Works on the food and drink regularly consumed by an individual or group of people are entered under Diet. --subdivision Nutrition under classes of persons and ethnic groups; and subdivision Nutritional aspects under diseases and types of diseases, e.g. Cancer--Nutritional aspects
Here are entered works on difficulties digesting certain foods, which lead to physical symptoms. Works on immune responses to specific foods are entered under Food allergy. Works on the toxic effects of food containing naturally poisonous substances or toxic chemical residues are entered under Food--Toxicology.