At your latitude you could be outside all day in January and never get enough sunshine. You have to take vitamin d supplements to get enough.
>>>At your latitude you could be outside all day in January and never get enough sunshine.<<<
Hmmm, maybe 3 4X8 sheets of plywood covered with tinfoil (Nekkid as Wneighbor would say)...
Actually, probably cheaper to stock up more on D3 vitamins.