Calcium & Vitamin D

How Calcium & Vitamin D Works

The body uses calcium to build healthy bones and teeth, and to keep them strong as it ages.

Calcium is also involved in a number of other important body functions including the nervous system, blood clotting, muscle contraction, and regulating heart rhythms.

Vitamin D is made by a natural chemical reaction in the skin when it is exposed to sunlight. This vitamin is necessary for the body to be able to absorb and use the calcium that it takes in via food sources and supplements.

Side Effects of Calcium & Vitamin D

Calcium can cause bloating and constipation as the body adjusts to the effects of a new calcium supplement.

When taken properly, vitamin D is virtually free of side effects. Too much vitamin D can cause high calcium levels. High calcium levels can cause increased thirst & urination, nausea, vomiting, and constipation.

Patients should take the amount of calcium and vitamin D recommended by their doctor to minimize side effects.

Who Should NOT Take Calcium & Vitamin D

Patients who should NOT be taking Calcium or Vitamin D include:

  • Patients experiencing high calcium levels

When to Call a Doctor

Symptoms of too much calcium include: increased thirst & urination, nausea, vomiting, and constipation.

People should call a doctor if they are taking calcium and/or vitamin D and are experiencing these symptoms.

Calcium & Vitamin D Video

Watch Dr. Andy Thompson, a Canadian rheumatologist, introduce Calcium & Vitamin D.