GLOSSARY

Intermittent Energy Restriction (IER) alternates periods of energy restriction with less restricted intervals under a stated protocol.

A diet break usually means a planned period nearer maintenance energy intake, while a refeed is a shorter planned increase often emphasizing carbohydrate. Definitions and protocols vary. Neither guarantees a metabolic reset or unlimited eating without consequences. Reverse dieting describes a gradual intake increase after restriction, with limited evidence that it has a unique metabolic advantage. Select transitions according to adequacy, appetite, training and sustainable maintenance rather than treating a branded schedule as necessary physiology.

Weight management includes prevention of unwanted change, intentional change and maintenance. The appropriate goal follows health, function, training and the person's priorities rather than a scale target alone. Energy balance is dynamic, and the same intake change will not produce a fixed linear trajectory indefinitely. Use trends under comparable measurement conditions and assess well-being and performance. A plan should be revised when it produces persistent fatigue, deteriorating training or escalating preoccupation with food and weight.

Over a defined interval, a difference between metabolizable energy intake and energy expenditure changes stored body energy. This principle does not imply that daily scale weight directly reveals energy balance. Water, glycogen and gut contents also contribute to body mass. Intake and expenditure influence each other through behavior and physiology, so projecting the same daily deficit indefinitely creates unrealistic predictions. Interpret the energy equation together with its timescale and the composition of the tissues changing.

Adherence concerns how closely an agreed plan is carried out over time. It is influenced by cost, work, family, symptoms, cooking skills and whether the plan is realistic. Difficulties are information for adjustment rather than proof of weak character. Agree on specific actions and review their feasibility. A modest, sustainable change can be more useful than an ambitious prescription that repeatedly prevents the athlete from eating enough or functioning comfortably in daily life.

Nutrition follow-up compares intended goals with actual intake, symptoms, function, relevant measurements and the person's experience. Specify the time frame and what would justify adjustment, continuation or referral. A treatment response can be beneficial, absent or adverse, and adherence alone does not prove effectiveness. Retain enough documentation to understand what changed. For an athlete, consider health and training quality alongside body mass or laboratory results so that apparent progress in one measure does not hide deterioration elsewhere.