Potential barriers to good nutrition.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007227:Infant Nutritional Physiological Phenomena; D008875:Middle Aged; D009747:Nutritional Physiological Phenomena