Vitamin D also known as calciferol, is a very important vitamin for humans which includes development of the teeth and bones, growth of the immune system and much more importance as it play a lots of role.
The main source of Vitamin D is the sun, when exposed to the sun by the early hours of the day, one tends to gain vitamin D through exposure to UV rays.
Apart from the sun there are other sources which are;
You do not necessarily have to depend on the sun for your vitamin D, you have other sources.
Stay safe and do not quit intake of Vitamin D.