I often think about how the rising costs of healthcare also contribute to this problem. I think people get desperate for alternatives when they can’t afford medical care. Not necessarily a global issue, but definitely an element of truth to it in the USA.
Interesting, thanks. A question, though.....You say: "Just minutes of sun exposure enables us to make the vitamin D we need. You’d only need 3 to 8 minutes of outdoor exposure with 25% of your skin exposed in Boston from April to October to synthesize sufficient supply."
I see two problems with this. One, there are a significant number of people---and I'm one of them---who rarely if ever have 25% of their skin exposed to the sun for even that very brief period of time. Two, the linked journal article indicates that this outdoor exposure is sufficient for only a *daily* amount, which means that people wishing to avoid supplementation would, in principle, have to have the required amount of sun exposure *every* day of the year.
Does this not undermine the argument against supplementation?
A good question! So, because we can store precursor in hepatocytes and adipocytes, you do not require daily sun exposure. Your body can essentially “stockpile” excess and liberate it for use when needed. Those stored levels are also not assessed using blood serum vitamin D testing.
I often think about how the rising costs of healthcare also contribute to this problem. I think people get desperate for alternatives when they can’t afford medical care. Not necessarily a global issue, but definitely an element of truth to it in the USA.
Interesting, thanks. A question, though.....You say: "Just minutes of sun exposure enables us to make the vitamin D we need. You’d only need 3 to 8 minutes of outdoor exposure with 25% of your skin exposed in Boston from April to October to synthesize sufficient supply."
I see two problems with this. One, there are a significant number of people---and I'm one of them---who rarely if ever have 25% of their skin exposed to the sun for even that very brief period of time. Two, the linked journal article indicates that this outdoor exposure is sufficient for only a *daily* amount, which means that people wishing to avoid supplementation would, in principle, have to have the required amount of sun exposure *every* day of the year.
Does this not undermine the argument against supplementation?
A good question! So, because we can store precursor in hepatocytes and adipocytes, you do not require daily sun exposure. Your body can essentially “stockpile” excess and liberate it for use when needed. Those stored levels are also not assessed using blood serum vitamin D testing.