Vitamin D is a steroid hormone that influences virtually every cell in your body, which is why maintaining a healthy level is so important. Low vitamin D levels are widely known to harm your bones, leading them to become thin, brittle, soft or misshapen.
But vitamin D is equally important for your heart, brain, immune function and much more. For example, there’s an important connection between insufficient vitamin D and insulin resistance and/or diabetes, both type 11 and type 2.
