Spinach is rich in vitamins A, C, and K, as well as folate, iron, and antioxidants like beta-carotene and lutein.
Broccoli is packed with vitamins C, A, and E, as well as antioxidants like sulforaphane and glucosinolates.
Bell peppers, particularly red and yellow varieties, are excellent sources of vitamin C, which is essential for immune health.
Garlic contains compounds like allicin, sulfur, and antioxidants that have antimicrobial, antiviral, and immune-boosting properties.
Sweet potatoes are rich in beta-carotene, a precursor to vitamin A, which plays a key role in immune function and vision health.
Certain mushrooms, such as shiitake, maitake, and reishi, contain polysaccharides and beta-glucans that have immune-modulating effects.