a chemical compound that is needed in small amounts for the human body to work correctly.

the ability to do work or cause change; can be stored in chemicals found in food and released to the organism to do work

a measure of the amount of energy in food

any vitamin, mineral, herbal product, or other ingestible preparation that is added to the diet to benefit health

activity requiring physical effort carried out to sustain or improve health and fitness.

something consumed by organisms that provides chemical energy

a thing that is not food; can be edible (like vitamins, medicine, and supplements) or an inedible thing.

 a substance such as a fat, a protein, or a carbohydrate that a living thing needs to survive

a chemical element or substance required in trace amounts for the normal growth and development of living organisms.

a type of food required in large amounts in the diet.

in good health