The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
I think you want to serve higher up on the vitamin D curve. The issue is how you get there. My synthesis is you exercise. And if your exercise means that you get a low enough UV exposure that you need supplementation, then supplement.
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
Regular aerobic exercise–along with adequate sunlight exposure and vitamin D supplementation if needed—might be your best tool for maintaining optimal vitamin D levels year-round.
They did test sun exposure alone and found that sun exposure + vitamin D supplementation was best.