GLOSSARY

Intentional Weight Gain is body-mass increase pursued deliberately for a defined goal.

For example, an athlete seeking more body mass can add practical meals and energy-dense foods while keeping training progressive. Track the pace of change, strength and tolerance instead of treating every kilogram gained as muscle. A suitable surplus is judged by the broader outcome, not by reaching the highest possible intake.

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.

Protein targets depend on body size, training, energy intake, age and clinical status. A high-protein label does not identify the actual amount, amino-acid quality or distribution. During weight reduction, adequate protein and resistance exercise can help preserve lean tissue, but neither removes the consequences of an excessive energy deficit. Kidney disease can require a different clinical approach. Do not transfer a healthy athlete's protein strategy directly to a person with impaired renal function.

A portion is the amount actually chosen or eaten, whereas a serving may be a defined label or reference amount. Plate methods and food-volume approaches simplify planning but do not measure every athlete's requirement. Energy density concerns energy relative to food mass, not a complete judgment of food quality. Adjust portions to purpose: low-energy-density choices may help some weight-management plans, while a heavily training athlete may need more compact energy sources to meet demand comfortably.

Short-term weight change can reflect water, glycogen, gastrointestinal contents and measurement conditions as well as tissue change. Review a sequence of comparable observations rather than reacting to one reading. A plateau can involve changing energy expenditure, intake, adherence or fluid shifts; it is not proof of permanent metabolic damage. After weight loss, maintenance requires ongoing support and an adjusted plan, with attention to appetite, activity, food access and the person's ability to sustain the changes.

An adequate diet provides sufficient energy and essential nutrients while fitting health needs. A high score for variety or a healthy food label cannot independently demonstrate adequacy. Review what is actually eaten, including foods excluded and suitable replacements. Athletes can consume many vegetables yet still lack enough energy or carbohydrate for training. Assess the overall pattern, distribution and relevant nutrient risks rather than assuming that a single food or supplement makes the entire diet balanced.