Muscle injuries and dehydration can also trigger cramps. Dehydration is the excessive loss of fluids in the body. Low levels of any of the following minerals that contribute to healthy muscle function may also cause muscle cramps: calcium.
The heart is a part of the cardiovascular system in fact its the main part so if you have heart disease another way of saying this is you have cardiovascular disease.
Skeleton. Vitamin D3 has been known to improve the strength of bones. It helps many people avoid osteoporosis, or weak bones, and is recommended in significant quantities if bones are fragile. This is most common among women, especially post-menopausal women, and longtime corticosteroid users.