Study Finds Vitamin A May Lower Risk of Skin Cancer
Skin cancer is the abnormal growth of skin cells, and most often develops on skin exposed to the sun. A new study suggests that high vitamin A intake may reduce the risk of skin cancer by up to 17%.
For their study, the researchers used data from The Nurses’ Health Study, which followed 121,700 women for 28 years, and the Health Professionals Follow-up Study, which followed 51,529 men for 16 years. None of the participants had a history of cancer. Participants completed dietary questionnaires that asked about approximately 130 food items every four years. They also answered questions about hair color, the number of severe sunburns they had had in their lifetime, and any family history of skin cancer.
The participants were grouped into five categories based on their vitamin A intake levels. Participants with the highest average daily intake were found to have a 17% less risk of developing skin cancer, compared to those with the lowest average daily intake.
The study was conducted by researchers from Brown University and Brigham and Women’s Hospital. It was published online ahead of print on July 31, 2019 in the journal JAMA Dermatology.