Nutrition and aging: some unanswered questions.
D000368:Aged; D000375:Aging; D004032:Diet; D002149:Energy Intake; D005260:Female; D006801:Humans; D008297:Male; D009066:Mouth, Edentulous; D009747:Nutritional Physiological Phenomena; D009751:Nutritional Requirements; D010024:Osteoporosis / Q000503:physiopathology; D012683:Sensory Deprivation; D012903:Smell; D013649:Taste