• Include Flavonoids: They act as antioxidants to improve the immune system in general and also help to fight respiratory infections. Good flavinoid sources are onions, apples, broccoli, red grapes, cherries, citrus fruits, tea, red wine, and many berries, including raspberry and cranberry.
• Increase intake of Omega- 3 Fatty Acids: Increased consumption of flaxseeds, walnuts, soybeans, and cold water fish like salmon, cod can help with nasal polyps.
• Reduce consumption of Refined fats like refined oils, corn and safflower oils.
• Eliminate Food Allergens:
  • Food allergens may be different for different individuals. However, some foods like soy, dairy, eggs, yeast, and gluten-containing products such as wheat, which may trigger an allergic reaction, should be avoided.
  • Other common allergens include certain food additives and preservatives such as benzoates, tartrazine, monosodium glutamate, and sulfites. These chemicals are found in soft drinks, food colors, canned vegetables, confectionery, candy, soft drinks, chips, cereals, instant soups, sauces, some pastas, butter, cheeses and pickled products.
  • Monosodium glutamate(ajinomoto) or MSG used in Chinese food and many processed foods.
• Stock up on foods high in Vitamin A and Beta-Carotene: They help protect the sinuses. They are found in yellow/orange and green vegetables and fruit such as spinach, carrots, sweet potatoes, winter squash, mango, melon and apricots.
• Have more of foods rich in Vitamin C and Vitamin E:
  • Foods rich in Vitamin C are citrus fruits, tomatoes, papaya, yellow and red bell peppers, green leafy vegetables, berries, guava, etc.
  • Foods rich in Vitamin E are almonds, avocados, pumpkin, tofu, etc.
• Drink plenty of fluids, especially water: Water moistens the mucous membranes, which helps keep allergens out.