[thinkingemote]

Indeed, the UK which is further north than the majority of Canada's population has effective vitamin D from the Sun only from March to September. Spring Equinox to autumn equinox basically. The sun is too low even though it might be much warmer than lower latitudes!

[noneeeed]

Yurp. I live in the south of England and even here I take vit D for pretty much that time period or I end up with little to no energy. I always make sure to go outside as much as I can, but when the sun is coming up at 8am and has gone down by 6pm it's pretty hard to get enough daylight and also work.

[afr0ck]

Worse in Edinburgh. Sunset is at 4pm for god's sake.

[MrDresden]

Greetings from Reykjavík Iceland