RECOMMENDATIONS
Recommended intakes of zinc
RDA (1989):
- Males (11+) 15 mg/day
- Females (11+) 12 mg/day
DRI (1998):
- Males (14+) 11 mg/day
- Females (19+) 8 mg/day
WHO (1996)*:
- Males (19+) 5.6-9.4 mg/day
- Females (19+) 4.0-6.5 mg/day
*Estimated for high availability or moderate availability in the diet (e.g. high meat content compared with vegetarian)
Nordic recommendations (1996)
- 9 mg/day (males),
- 7 mg/day (females)
Norwegian recommendations (1997)
- 9 mg/day (males, 19+)
- 7 mg/day (females, 19+)
- 9 mg/day (pregnancy)
- 11 mg/day (nursing mothers)
New nordic recommendations, 2004 (based on factorial method)
Lost in urine, skin, menstruation, semen:
- 1.27 mg/d (men),
- 1.0 mg/day (women)
Loss through GI tract to faeces: - 1.4 mg/d (both sexes)
In the typical mixed nordic diet, availability estimated at ~40%.Requirement of
- 6.4 mg/d (men),
- 5.7 mg/d (women).
Interindividual variation in requirements is assumed to be 15%.
Recommendations virtually unchanged, at
- 8.3 mg/day for men,
- 7.4 mg/day for women.