
10/07/2025
Many parents believe that sunbathing their babies for about 30 minutes in the early morning is a natural remedy to treat neonatal jaundice as well as help them to supplement their own Vitamin D. Read further below to find out whether or not the statement is true.
In the past, health advice for children recommended that newborns be sunbathed between 6 a.m. and 8 a.m. to prevent rickets caused by vitamin D deficiency. However, this advice is outdated and does not reflect current scientific evidence.
Sunlight contains three types of ultraviolet (UV) rays: UVA, UVB, and UVC. UVA rays, which are most present in the early morning, cannot synthesize vitamin D, contrary to common belief. Instead, UVA exposure is associated with harmful effects such as skin aging, dark spots, and an increased risk of skin cancer. UVC rays are extremely dangerous but are blocked by the ozone layer. Only UVB rays—most intense between 10 a.m. and 2 p.m.—can stimulate the production of active vitamin D. However, during these hours, temperatures are typically too high for safe sun exposure, especially for infants and young children.
Given the fragility of infant skin, many health authorities now advise against sunbathing babies, as it can increase the risk of skin damage and cancer.
The American Academy of Pediatrics recommends that infants under six months receive 400 IU of vitamin D daily through supplementation, with no need for sun exposure. This supplementation should continue for at least the first year. After 12 months, if a child has a well-balanced diet, consumes fortified formula, and gets some sun exposure through play, vitamin D supplements may no longer be necessary. However, supplementation is generally recommended until age four.
Breastfed infants, in particular, require vitamin D supplements because breast milk, while rich in nutrients and antibodies, contains only low levels of vitamin D.
Additionally, some parents believe that sunbathing helps prevent or treat neonatal jaundice. However, there is no scientific evidence to support this practice.