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Nutrient Recommendations and Databases - Office of Dietary …
Vitamins and Minerals: How Much Should You Take? - WebMD
Vitamins and Minerals – The Nutrition Source
Daily Value on the Nutrition and Supplement Facts Labels
Recommended Daily Allowances :: RDA Chart | RDA Table
Recommended Daily Intakes and Upper Limits for Vitamins and Minerals
Recommended Daily Intakes for Vitamins - MSD Manuals
Dietary reference intakes tables: Overview - Canada.ca