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nutrient-dense

high in nutrients relative to calories provided

obesity

excess body fat or adipose tissue

overweight

weighing more than 10% over the standard weight for height

body mass index

the ratio of weight to height

undernutrition

not consuming enough essential nutrients

bulimia nervosa

a disorder in which cycles of overeating are followed by some form of purging and clearing of the digestive tract

weight cycling

the cycling of losing, regaining, losing, and regaining

anorexia nervosa

a disorder in which the irrational fear of becoming obese results in severe weight loss from self-induced starvation

rehydration

restoring lost body fluids

megadoses

very large amounts of nutrient supplements

nutrient supplements

pills, powers, liquids and other synthetic forms of nutrients

vegans

vegetarians who eat only foods of plant origin

carbohydrate loading

storing extra glycogen in the muscle for athletic activity

dehydration

the loss of excess body fluids

food allergy

condition in which the body's immune system overreacts to food substances

pasteurized

treated by a process of heating to destroy or slow the growth of pathogens

cross-contamination

the spreading of bacteria in food

perishable

liable to spoil

foodborne illness

food poisoning

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