Our bodies create vitamin D from sunshine, and all we really need is 10 to 15 minutes of sunshine on our skin a day. During winter, we spend less time outdoors, and we’re bundled up against the cold. So some experts think the risk of vitamin D deficiency is higher in winter.
But year-round, many of us don’t get the Vitamin D we need. The National Institutes of Health recommends:
Vitamin D plays a vital role in getting calcium into the bloodstream from the intestines and the kidneys. Without enough vitamin D, a lot of the calcium you take in from food or supplements could pass out of the body as waste. If you don’t get outdoors a lot, ask your doctor about vitamin D supplements.