Some info on Sunlight and Vitamin D.
How much sun do you need for maximum Vitamin D?
10-15 minutes (full body) on a standard UV index of 7 day.
That’s 30 min in the middle of the day in Dubbo in winter (Max UV index 3)
UV index is here:
This is a very good article on Vitamin D:
This quote is interesting: “This study showed that the correlation between low ultraviolet radiation and MS was considerably stronger than that between high UV and melanoma.”
Vitamin D and coeliac: