It’s important to give your pet the vitamins and nutrients they need to maintain good health, just as you would for yourself. However, of course, there can be too much of a good thing. When you’re ...

DEAR DR. ROACH: Several years ago, in my early 80s, my gynecologist told me (like all women who mainly stayed indoors) that I should be taking 4,000 IU of vitamin D3 daily. Yet today, I read an ...

Vitamin D is essential for calcium absorption and bone health. Studies have linked vitamin D deficiency not only to bone diseases but also to autoimmune disorders and anticancer effects in melanoma, ...