What Body-Fat Tests Measure?
Body-fat tests estimate body composition from different physical measurements, so results depend on the method and testing conditions.
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Why Losing Appetite with Age Can Become a Nutrition Problem
Appetite loss in older adults can push food intake below energy needs, increasing the risk of unintended weight loss even as calorie needs decline.
Losing Muscle Can Affect Your Metabolism
Muscle loss can contribute to a lower resting metabolic rate with age, but changes in muscle mass alone do not explain the full decline.
What the Adult Protein Recommendation Really Means
The adult protein RDA estimates an intake that meets most healthy adults’ needs, rather than measuring an individual’s exact requirement.
Nutrition Can Become More Challenging with Age
Older adults may need fewer calories while still needing nutrient-rich foods, making adequate nutrition within a smaller intake more challenging.
What Makes Up Health-Related Fitness?
Health-related fitness describes several distinct qualities, so strength in one area does not necessarily mean equal ability across the others.