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Vitamin D and tiredness
Low levels are common at these latitudes, but D is rarely the whole story on its own.
Vitamin D deficiency is real and common in Northern Europe — the sun angle cannot make D in the skin from roughly October to March — and it causes tiredness, muscle aches and low mood. But it is also over-blamed: D is often low alongside whatever is actually wrong, and fixing it while ignoring sleep, iron and mood changes nothing.
The check is a 25-hydroxyvitamin D blood test, best taken at the end of winter when stores are lowest. If it is low, the national guidance dose is boringly standard — typically 20-50 micrograms a day for a few months, then a maintenance dose. There is no evidence that huge doses beyond correction do anything extra.
Vispirms pārbaudiet
A 25-hydroxyvitamin D test at the end of winter.
Uzziņai, nevis medicīnisks padoms. Ja nogurums progresē, ir neizskaidrojams vai nāk kopā ar svara zudumu, drudzi, nakts svīšanu vai elpas trūkumu, dodieties pie ārsta. Nekas šeit nenosaka diagnozi.