What is the best natural source of vitamin D for the human body?

Explanation

The human body naturally produces vitamin D when skin is exposed to ultraviolet B rays from sunlight, which is why it is sometimes called the sunshine vitamin. Vitamin D is important for calcium absorption and bone health, and a deficiency can lead to weakened bones or, in children, a condition called rickets. While some foods like fatty fish and fortified dairy also provide vitamin D, sunlight remains a major natural source for most people. Explore more Everyday Science MCQs on mcqstutor to keep practicing.