Do we need to be taking Vitamin D this winter?
A first-principles look at sunlight, seasons, circadian biology and supplementation.
Winter is coming, which means the annual Vitamin D conversation is back on.
Maybe you’ve dutifully bought a bottle from the pharmacy, popped a capsule and carried on with your day, possibly feeling vaguely virtuous.
Now, I’m not here to say, “STOP! What are you doing?”
I’m simply here to share what I’ve learnt over the last five years of studying circadian biology, and how it has made me question, and rethink, some of the things I once considered nutritional no-brainers.
Vitamin D is a good example.
We’ve become used to thinking of vitamin D as something we need to supplement, particularly through the winter, and perhaps even all year round. However, when you start looking at it through the lens of sunlight, circadian biology and seasons, it becomes a much more interesting story.
So, in this article, I want to go back to first principles and look at vitamin …