Fish oil supplements may prevent skin cancer with regular use. Over time, fish oil nourishes the skin cells and keeps cell walls healthy and protected from ultraviolet radiation (UV rays). UV rays from the sun or tanning beds are often what triggers cell mutations, so knowing that some added nutrition can be an extra line of defense is a great step forward. An exciting study was done at the Dermatology Centre and published in the March issue of the American Journal of Clinical Nutrition.