New guidelines for vitamin D call for increasing the recommended dietary allowance (RDA) of vitamin D to 600 international units (IU) for everyone aged 1-70, and raising it to 800 IU for adults older than 70 to optimize bone health.
Upper Levels of Daily Vitamin D and Calcium
- 1,000 IU per day for infants up to 6 months
- 1,500 IU per day for infants 6 to 12 months
- 2,500 IU per day for children ages 1 through 3
- 3,000 IU daily for children 4 through 8 years old
- 4,000 IU daily for all others
“More isn’t necessarily better, and anything over the new upper intake levels may increase risks,” says Committee chair Catharine Ross, PhD, professor and Dorothy Foehr Huck Chair of the department of nutritional sciences at Pennsylvania State University in University Park.
The new upper intake levels for calcium are:
- 1,000 milligrams per day for infants up to 6 months
- 1,500 milligrams per day for infants 6 to 12 months
- 2,500 milligrams per day from ages 1 through 8
- 3,000 milligrams daily from ages 9 through 18
- 2,500 milligrams daily from ages 19 through 50
- 2,000 milligrams per day for all other age groups