I went for a regular health check-up. My doctor performed certain blood tests which included my blood level of Vitamin D. Now I have been diagnosed as having vitamin D deficiency. I am 49 years old. What kind of vitamin D is best?

The recommended form of vitamin D is vitamin D3 or cholecalciferol. This is the natural form of vitamin D that your body makes from sunlight. Commonly, Vitamin D deficiency is treated with tablets containing 60,000 international units of vitamin D2 or D3 orally once a week for six to eight weeks. The tablet should be taken early in the morning on an empty stomach. After the course is over, you may be placed on 800 units of vitamin D3 daily thereafter. You may also be placed on calcium tablets containing Vitamin D.