Recommended Daily Allowance (RDA) for a
Male 18 Years of Age

Important This is for informational purposes only. Please consult a medical professional if you need more information. See legend at bottom of chart for more details.

NameRDA/AIUL
Calcium1300 mg2500 mg
Copper890 mcg10000 mcg
Folate400 mcg1000 mcg
Iron11 mg45 mg
Magnesium410 mg350 mg
Niacin16 mg35 mg
Panto. Acid5 mgn/d
Phosphorous1250 mg4000 mg
Potassium3000 mgn/d
Riboflavin1.3 mgn/d
Selenium55 mcg400 mcg
Thiamin1.2 mgn/d
Vitamin A900 mcg3000 mcg
Vitamin B61.3 mg100 mg
Vitamin B122.4 mcgn/d
Vitamin C75 mg2000 mg
Vitamin D5 mcgn/d
Vitamin E15 mg1000 mg
Vitamin K75 mcgn/d
Zinc11 mg40 mg

Sources: Institute of Medicine – Dietary Reference Intakes Tables

*Adequate intake amount rather than RDA.
AIAdequate Intake
RDARecommended Dietary Allowance. The RDAs presented are not appropriate for pregnant or lactating women, or for those under 18 years of age. Please consult your doctor if you are pregnant or lactating.
n/dNot determinable due to lack of data of adverse effects in this age group and concern with regard to lack of ability to handle excess amounts. Source of intake should be from food only to prevent high levels of intake.
ULUpper Limit – the maximum intake on a daily level that is likely not to pose any adverse effect. If there is no upper limit for a nutrient, “extreme caution may be warranted in consuming levels above recommended intakes.”