A diet that includes large amounts of carotene, fiber, and vitamins with low amounts of fat--specifically, a diet with non-starchy vegetables (e.g. broccoli and onions)--may be protective, though research is still ongoing in this area.
A diet--specifically, a diet with non-starchy vegetables (e.g. broccoli and onions)--may be protective. This diet includes large amounts of carotene, fiber, and vitamins with low amounts of fat. Research is still ongoing in this area.