As vitamin D is formed through the action of sunlight on skin, and this meets the requirements of most people, no RNI is given for vitamin D. The exceptions are:
| Infants < 6 mths | 8.5 m g/d |
| Children; 6 mths – 3 yrs | 7 m g/d |
| Pregnant & lactating women | 10m g/d |
| Elderly (> 65 yrs) | 10m g/d |
Vitamin D is important as it assists with the absorption of calcium in the body.
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