From the evidence I've seen, vitman D deficiency is a bigger problem than vitamin D toxicity. We already have dozens of RCTs showing that vitmain D supplements

From the evidence I've seen, vitman D deficiency is a bigger problem than vitamin D toxicity. We already have dozens of RCTs showing that vitmain D supplements prevent respiratory infections. https://www.bmj.com/content/356/bmj.i6583 https://www.bmj.com/content/356/bmj.i6583