You probably know you need to eat well to stay healthy, but did you also know that specific diet strategies could help bolster your immunity? To keep your immune system strong, eat a variety of foods that provide a natural abundance of vitamins, minerals and phytonutrients, particularly those rich in vitamin C, beta carotene and zinc. These healthy recipes will get you started—they all contain at least 15% of the daily value of at least one of those vitamins or minerals.