“…The animals on the saturated fat diet weren't hurt by the sunlight. The polyunsaturated fats in your skin are the target for the ultraviolet light producing damage. There are other targets, but if, for example, vitamin B2 is locally destroyed by ultraviolet light, if the cells contain a lot of polyunsaturated fats, they act like an amplifier for the damage and cause the damage that accumulates with fibrosis and shrinkage of the skin and such. And other things, you can apply coconut oil to your skin and get some protection”