The deficiency of vitamin d may lead to cardiovascular disease. Heart conditions, such as those that affect your heart's muscle, valves or rhythm, also are considered forms of heart disease. This is usually referred to conditions that there is a narrowing or blocking of blood vessels that can become a heart attack, chest pain (angina) or stroke.
Vitamin D mostly helps the body absorb calcium (which we need for strong bones) and helps keep immune systems strong. Vitamin D deficiency leads to more flu and colds, fragile bones, weak muscles, high blood pressure and depression. Deficiency can lead to hundreds of diseases. hope this helps :)
