11 Immunity-Boosting Foods to Strengthen Your Body Naturally

10. Eggs (vitamin D and protein)

Whole eggs are a convenient source of high-quality protein and vitamin D in moderate amounts, which supports both immune cells and general repair processes. Including an egg in breakfast or a tiffin box is an easy way to boost nutrient intake. Egg yolks contain most of the vitamin D and several fat-soluble vitamins, so whole eggs are more useful nutritionally than egg whites alone for this purpose. Hard-boiled eggs travel well in a lunchbox and pair nicely with a side of raw greens or a small salad. For vegans or those who avoid eggs, fortified plant-based alternatives may help provide vitamin D and protein, but check labels for nutrient amounts. If you have cholesterol concerns, discuss egg intake with your clinician; current guidance typically emphasizes overall dietary patterns rather than single foods. Eggs are a flexible, widely available choice for quick meals and snacks that help round out an immune-supporting diet (Cleveland Clinic).