Answer by
rain7420 (152)
Foods that will help strengthen your immune system and in turn help build white blood cells include fresh fruits, vegetables, those that contain Omega 3's or Folate and good bacteria. Examples of foods that will support a healthy immune system include blueberries, strawberries, grapes, soybean, flaxseeds, walnuts, salmon, yogurt, kifir, spinach and Kale.