What causes Eosinophilia? Eosinophilia occurs due to allergic reactions, parasitic infections, asthma, certain autoimmune diseases, or medication side effects. How to manage it with diet? 1. Avoid allergenic foods (like shellfish, peanuts, soy, etc.). 2. Include anti-inflammatory foods like turmeric, ginger, garlic. 3. Eat more fruits like papaya and pineapple (rich in enzymes). 4. Maintain a parasite-free gut with cooked, hygienic food. 5. Drink adequate water and avoid junk or processed foods.