s not enough D3 in foods to raise your levels and even on the rare occasion the
UK has sunshine, you need UVB rays to convert the
D3 in your body. There are no UVB rays in the UK for months.
US lab range is 30-100ng/mL. You need to be above 50ng/mL. Anything below should be considered deficient.
UK should be 150-250nmoL
D and magnesium deficiency can cause depression, fatigue, anxiety, pain, brain fog, headache, eye sensitivity, etc.