Causes of vitamin D2 deficiency

Oct 25, 2022 Source: Cainiu Health
Disease description:

The child went to the hospital for a checkup, and the doctor said it was due to a deficiency in vitamin D2, advising supplementation at home. I would like to know the causes of vitamin D2 deficiency.

Doctor's answer (1)
Dr. Wang Lei
The main cause of vitamin D2 deficiency is usually lack of sunlight exposure, which is essential for vitamin D synthesis. For example, insufficient sun exposure—especially during winter—requires regular dietary supplementation. In addition to air pollution, factors that block ultraviolet rays from the sun can also contribute. Common symptoms include excessive sweating, loss of appetite, muscle cramps, anemia, rickets, and weakened constitution, which can have significant effects on children.