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What Are the Normal Vitamin D Levels by Age?

Most adults need at least 600 IU of vitamin D every day to maintain healthy levels. Blood levels of vitamin D below 12 ng/mL are considered deficient and can be harmful to health. Vitamin D helps the ...
UNILAD

Four signs you should start taking vitamin D and who is most at risk of deficiency

Doctors have revealed who is most at risk of being vitamin D deficient and the four key symptoms to look out for during the ...