What foods support immune system function?
A healthy immune system depends on a balanced diet. Eating plenty of fruits, vegetables, whole grains, lean proteins (like fish or beans), and healthy fats (from nuts or olive oil) helps your body fight infections. Essential nutrients include vitamins A, C, D, and E, as well as zinc, selenium, and iron. No single food or supplement can “boost” immunity on its own; it’s about overall healthy eating and lifestyle.