A new study published in the Endocrine Society's Journal of Clinical Endocrinology and Metabolism notes that people not deficient in vitamin D are likely to experience less severe COVID-19 infection.
Strangely enough, one cannot get too much Vitamin D from the sun but can overdo the supplements causing various problems. Vitamin D toxicity is, thankfully, quite rare but it can lead to hypercalcemia symptoms of which are: nausea, increased thirst and urination, and poor appetite.