Nutrition & Energy
Do you have enough vitamin D?
Estimate based on your sun exposure
Vitamin D is mostly produced through skin exposure to sunlight — a real risk in colder months or for people who spend little time outdoors. Answer a few questions for a quick signal.
Yes
No
Summer/Fall
Winter/Spring
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Low
Moderate
High
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🔒 The data you enter is processed instantly on your device. We don't save or collect anything.
This result is a guideline — the real level is only confirmed by a blood test, talk to your doctor.
General recommendations according to the Institute of Medicine / NIH (600-800 IU/day, depending on age).