Vitamin D can be made in the body with the help of:

Question

Quizplus · Accepted Answer

Vitamin D is produced in the body when the skin is exposed to sunlight. Specifically, when UVB radiation hits the skin, a chemical reaction occurs that results in the production of vitamin D3, which can then be converted into the active form of vitamin D in the liver and kidneys. While vitamin A and tryptophan are important for other bodily functions, they do not play a direct role in the production of vitamin D. While some bacteria can produce a form of vitamin D, this is not the type of vitamin D that is produced in the human body. Vitamin D can be made in the body with the help of sunlight. When the skin is exposed to sunlight, certain UV rays trigger the production of vitamin D in the body.

Vitamin D Can Be Made in the Body with the Help