Dietary Reference Intakes (DRIs): Recommended Dietary Allowances and Adequate Intakes, ElementsFood and Nutrition Board, National Academies

Life-Stage GroupCalcium (mg/d)Chromium (μg/d)Copper (μg/d)Fluoride (mg/d)Iodine (μg/d)Iron (mg/d)Magnesium (mg/d)Manganese (mg/d)Molybdenum (μg/d)Phosphorus (mg/d)Selenium (μg/d)Zinc (mg/d)Potassium (mg/d)Sodium (mg/d)Chloride (g/d)
0–6 mo200*a0.2*200*0.01*110*0.27*30*0.003*2*100*15*2*400*110*0.18*
7–12 mo260*a5.5*220*0.5*130*1175*0.6*3*275*20*3860*370*0.57*
1–3 y70011*3400.7*907801.2*174602032,000*800*1.5*
4–8 y1,00015*4401*90101301.5*225003052,300*1,000*1.9*
9–13 y1,30025*7002*12082401.9*341,2504082,500*1,200*2.3*
14–18 y1,30035*8903*150114102.2*431,25055113,000*1,500*2.3*
19–30 y1,00035*9004*15084002.3*4570055113,400*1,500*2.3*
31–50 y1,00035*9004*15084202.3*4570055113,400*1,500*2.3*
51–70 y1,00030*9004*15084202.3*4570055113,400*1,500*2.0*
> 70 y1,20030*9004*15084202.3*4570055113,400*1,500*1.8*
9–13 y1,30021*7002*12082401.6*341,2504082,300*1,200*2.3*
14–18 y1,30024*8903*150153601.6*431,2505592,300*1,500*2.3*
19–30 y1,00025*9003*150183101.8*457005582,600*1,500*2.3*
31–50 y1,00025*9003*150183201.8*457005582,600*1,500*2.3*
51–70 y1,20020*9003*15083201.8*457005582,600*1,500*2.0*
> 70 y1,20020*9003*15083201.8*457005582,600*1,500*1.8*
14–18 y1,30029*1,0003*220274002.0*501,25060122,600*1,500*2.3*
19–30 y1,00030*1,0003*220273502.0*5070060112,900*1,500*2.3*
31–50 y1,00030*1,0003*220273602.0*5070060112,900*1,500*2.3*
14–18 y1,30044*1,3003*290103602.6*501,25070132,500*1,500*2.3*
19–30 y1,00045*1,3003*29093102.6*5070070122,800*1,500*2.3*
31–50 y1,00045*1,3003*29093202.6*5070070122,800*1,500*2.3*

NOTES: This table (taken from the DRI reports, see presents Recommended Dietary Allowances (RDAs) in bold type and Adequate Intakes (AIs) in ordinary type followed by an asterisk (*). An RDA is the average daily dietary intake level sufficient to meet the nutrient requirements of nearly all (97–98 percent) healthy individuals in a group. It is calculated from an Estimated Average Requirement (EAR). If sufficient scientific evidence is not available to establish an EAR, and thus calculate an RDA, an AI is usually developed. For healthy breastfed infants, an AI is the mean intake. The AI for other life-stage and gender groups is believed to cover the needs of all healthy individuals in the groups, but lack of data or uncertainty in the data prevent being able to specify with confidence the percentage of individuals covered by this intake.


Life-stage groups for infants were 0–5.9 and 6–11.9 months.

SOURCES: Dietary Reference Intakes for Calcium, Phosphorous, Magnesium, Vitamin D, and Fluoride (1997); Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline (1998); Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids (2000); Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc (2001); Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate (2005); Dietary Reference Intakes for Calcium and Vitamin D (2011); and Dietary Reference Intakes for Sodium and Potassium (2019). These reports may be accessed via www‚Äč

From: Appendix J, Dietary Reference Intakes Summary Tables

Cover of Dietary Reference Intakes for Sodium and Potassium
Dietary Reference Intakes for Sodium and Potassium.
National Academies of Sciences, Engineering, and Medicine; Health and Medicine Division; Food and Nutrition Board; Committee to Review the Dietary Reference Intakes for Sodium and Potassium; Oria M, Harrison M, Stallings VA, editors.
Washington (DC): National Academies Press (US); 2019 Mar 5.
Copyright 2019 by the National Academy of Sciences. All rights reserved.

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