Calcium is essential to our health, but too much of it can have harmful consequences. While its benefits for bones and teeth ...

Patients with chronic kidney disease and those who have had a kidney transplant should avoid high doses of vitamin D, according to an evidence-based consensus document. “Vitamin D deficiency is common ...

Foods high in calcium include almonds, spinach, tofu, milk, certain beans, and salmon. This article covers non-dairy and vegetarian options too.