Sunflower seeds are a good or excellent source of nearly a dozen essential vitamins and minerals, including zinc and selenium. Zinc supports immune function, according to the National Institutes of Health (NIH). It also serves as an antioxidant to fight off free radical damage to your cells.

Spread the sunflower seeds evenly on a cookie sheet or shallow pan and bake for 30 to 40 minutes or until golden brown, stirring occasionally. The seeds will often develop a small crack down the center as they roast. Test after each stirring to see if the seeds are completely roasted by tasting.