Though vitamin D has the potential to ward off tuberculosis, further research is required to determine whether vitamin D supplementation prevents reactivation of latent tuberculosis infection or helps in management of TB cases.
The natural sources of vitamin D apart from fortified foods like milk and margarine are the following - Fish (Cod liver oil, Salmon, Mackerel, Tuna fish, Sardines), ready to eat cereals, eggs, beef liver and cheese.
Vitamin D is also available as capsules for treating deficiency states.
The daily requirements of vitamin D are adequately met from normal food and normal sunlight by normal healthy people. There is absolutely no need for vitamin supplements. High intake of vitamin D leads to high calcium levels in the blood which in turn causes congenital defects in the babies. Vitamin D synthesis occurs in the body by normal exposure to sunlight in our day to day life. There is absolutely no need to expose oneself to sunlight specially for this purpose.