is:

• 600 IU (15 mcg) per day

Adults over 70 generally require:

• 800 IU (20 mcg) per day

These recommendations include vitamin D obtained from food, sunlight, and supplements.

Why Taking Too Much Can Be Dangerous

Unlike water-soluble vitamins, vitamin D is fat-soluble, meaning excess amounts can accumulate in the body.

Taking very high doses for extended periods continue reading …