The U. S. Institute of Medicine (renamed National Academy of Medicine in 2015) updated Estimated Average Requirements (EARs) and Recommended Dietary Allowances (RDAs) for vitamin B6 in 1998. EARs for vitamin B6 for women and men ages 14 and up increase with age from 1. 0 to 1. 3 mg/day and from 1. 1 to 1. 4 mg/day, respectively; the RDAs increase with age from 1. 2 to 1. 5 and from 1. 3 to 1. 7 mg/day, respectively. RDAs are higher than EARs so as to identify amounts that will cover people with higher than average requirements. RDA for pregnancy is 1. 9 mg/day. RDA for lactation is 2. 0 mg/day. For infants up to 12 months the Adequate Intake (AI) is 0. 1–0. 3 mg/day. and for children ages 1–13 years the RDA increases with age from 0. 5 to 1. 0 mg/day. As for safety, Tolerable upper intake levels (ULs) for vitamins and minerals are identified when evidence is sufficient. In the case of vitamin B6 the UL is set at 100 mg/day. Collectively the EARs, RDAs, AIs and ULs are referred to as Dietary Reference Intakes (DRIs).
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