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Manganese UL Summary, Ages 19 Years and Older

UL for Adults

≥ 19 years

11 mg/day of manganese

Other Life Stage Groups

Infants. For infants, the UL was judged not determinable because of lack of data on adverse effects in this age group and concern about the infant’s ability to handle excess amounts. To prevent high levels of manganese intake, the only source of intake for infants should be from food or formula.

Children and Adolescents. There are no reports of manganese toxicity in children and adolescents. Given the dearth of information, the UL values for children and adolescents are extrapolated from those established for adults. Thus, the adult UL of 11 mg/day was adjusted on the basis of relative body weight as described in Chapter 2 using reference weights from Chapter 1 (Table 1-1).

Pregnancy and Lactation. There are no data showing increased susceptibility of pregnant or lactating women to manganese intake. Therefore, the ULs for pregnant and lactating women are the same as those for the nonpregnant and nonlactating women.

Manganese UL Summary, Ages 0 through 18 Years, Pregnancy, Lactation

UL for Infants

0–12 months

Not possible to establish; source of intake should be from food and formula only

UL for Children

1–3 years

2 mg/day of manganese

4–8 years

3 mg/day of manganese

9–13 years

6 mg/day of manganese

UL for Adolescents

14–18 years

9 mg/day of manganese

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