When to Take Vitamin D This Fall, According to the Experts
Culture Index
Score Breakdown
Relevance
3/25
Freshness
25/25
Authority
25/20
Brand Signal
6/15
Depth
2/15
5-Axis Cultural Radar
An estimated 35% of the United States has below optimal levels of vitamin D. The experts weigh in on when to start supplementing—and why.
