Lots of interesting details here. I’m struggling somewhat with the language since this isn’t my area, but it seems to be saying a few things. First, this is a

Lots of interesting details here. I’m struggling somewhat with the language since this isn’t my area, but it seems to be saying a few things. First, this is a study of 80 year old men so YMMV. Second, in that group, they found more sunlight didn’t seem to actually correlate with vitamin D activation. Regardless of how you got vitamin D, you got the benefits if you had the right gut bacteria. This seems like good news, since there’s been some indication for a while that vitamin D supplementation can be hit or miss and sunlight may be better. This could be the missing factor.