What Vitamin D is graded against
3 conditions the Vitamin D entry grades it against, grouped by direction.
May improve2 links
- Osteoporosis / bone lossEvidence grade B
With calcium, in deficiency
- Seasonal low moodEvidence grade C
Signal mostly in deficient individuals
No clear effect1 link
- Autoimmune diseaseEvidence grade C
VITAL hinted at a small reduction; not established
Directions and grades are read from each intervention’s own entry in this library. They describe the evidence for a link, not what anyone should take, and they are no substitute for a clinician who knows the person.