Are you getting enough Vitamin D?

After recently meeting up with some old friends and learning that one had been diagnosed with MS, I realized that was the third person in the past year that had been diagnosed with this inflammatory disease in my life. Sadness. Each person's experience with MS is unique.  One friend shared that low Vitamin D levels were linked to a litany of health diseases.  Living in the northeast, we may not be getting enough Vitamin D.  Katherine Leonard, a San Diego based nutritionist shares advice on Vitamin D levels here.