The RDAs are not for amateurs.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000383:Agriculture; D002648:Child; D004032:Diet; D005069:Evaluation Studies as Topic; D005260:Female; D005518:Food Preferences; D006077:Government Agencies; D006266:Health Education; D006801:Humans; D008297:Male; D008875:Middle Aged; D009747:Nutritional Physiological Phenomena; D009751:Nutritional Requirements; D012737:Sex Factors; D014481:United States; D014486:United States Food and Drug Administration