Vitamin D3 is the only vitamin that the body can produce by itself from sunlight.
How it works
But people who avoid sun exposure on a daily basis or are strict vegetarians can be deficient in this vitamin. The deficiency of Vitamin D3 leads to heart health problems, weakening of bones.
Common side effects
Vitamin D3 also helps in relieving chronic pain, weakness and fatigue. It helps to maintain stress levels and boosts energy. It also helps in calcium homeostasis and bone metabolism. Regular intake of vitamin D3 in the form of supplements has been shown to maintain ideal body weight.