Vitamin D is vital for immunity, brain health, strong bones, and overall well-being, but taking in too much from supplements ...

Taking too much vitamin D can cause serious side effects. Learn the signs, why you might feel weird after taking it, and when to talk to your healthcare provider.

While celebrated for bone health and mood, excessive Vitamin D, particularly from supplements, can harm kidneys. This ...

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 ...

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 ...

While most people don’t get enough vitamin D—a nutrient that’s crucial for bone and muscle health—it is possible to get too much. This can happen if you are taking multiple vitamin D-containing ...