Doc said the same thing to me today. Apparently your skin creates it in sunlight but if you live in Canada where it's winter for most of the year, or Britain where you live in permanent gloom and fog, that stops happening. D isn't in a lot of food either, so best to take supplements.
That's what she said anyway, but I also treated the whole affair like she was about to waterboard me, so I can't really say if she was right or not.
That's what she said anyway, but I also treated the whole affair like she was about to waterboard me, so I can't really say if she was right or not.