Vitamin D Sun TrackerHow much vitamin D
per day?
600 IUadults 19–70
800 IUover 70
4,000 IUupper limit
NIH reference values · general, not a prescription
Winter sun makes none
North of ~37° the sun is too low from October to March.
JFMAMJJASOND
Sun makes vitamin DNeeds a plan
Your number is personal
City
Skin
Weight
Time outside
Supplements
App Store Rating
5.0
The app is on iPhone only for now.
Free to download, Premium optional. Estimates, not medical advice. Privacy Policy