Dieting

Dieting is the practice of deliberately changing or restricting food intake, usually to lose weight or manage body weight.

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Energy balance: The relationship between energy consumed and energy expended by an organism. Weight change during dieting reflects sustained differences between consumed and expended energy.
Weight management: Strategies for achieving and maintaining a body weight suited to health and personal goals. Weight management is the broader aim behind much dieting.
Low-fat diet: An eating pattern that limits the proportion or amount of energy from fat. It offers a different macronutrient emphasis from low-carbohydrate dieting.
Weight cycling: Repeated cycles of intentional weight loss followed by weight regain. Repeated dieting and regain can create recurring changes in body weight.
Calorie restriction: A sustained reduction in energy intake compared with usual or estimated needs. Many diets pursue weight loss by reducing daily energy intake.
Mediterranean diet: An eating pattern emphasizing plant foods, olive oil, legumes, whole grains, and often fish. It is a structured eating pattern studied for health as well as weight-related outcomes.
Ketogenic diet: A very-low-carbohydrate, high-fat eating pattern that induces nutritional ketosis. It is a restrictive form of dieting with a distinct metabolic rationale.
Eating disorder: A mental disorder involving persistent disturbances in eating behavior and related thoughts or emotions. Restrictive dieting can overlap with or aggravate disordered eating for some people.
Appetite: The desire to eat, shaped by bodily signals, learning, emotions, and surroundings. Hunger and fullness can change as food intake and body weight change.
Intermittent fasting: Eating patterns that alternate periods of eating with periods of fasting or markedly reduced intake. It changes when food is eaten rather than necessarily prescribing particular foods.