A new study discusses research into the relationship between Vitamin A and skin cancer. There is more that we can do to prevent skin cancer than just use sunscreen daily! In a large study, patients were able to lower their risk of squamous cell skin cancer by around 15 percent. They received their Vitamin A primarily through food choices. A diet that includes sweet potatoes, cantaloupe, carrots, black-eyed peas, sweet red peppers, broccoli, spinach, dairy foods, fish and meat, especially liver, according to the U.S. National Institutes of Health (NIH). Supplements were not used in the study to get to appropriate levels of Vitamin A because of issues of having 'too much' vitamin A through supplements and other issues that arose. But by changing your diet, you may have some control over your skin cancer risk.
https://www.webmd.com/melanoma-skin-cancer/news/20190731/vitamin-a-tied-to-lower-odds-of-common-skin-cancer#1