Foods That Strengthen the Immune System Nutrition plays a vital role in supporting the immune system. The foods we eat provide essential nutrients that help immune cells develop, function, and respond effectively to threats. Vitamin C is one of the most well-known immune-boosting nutrients. Found in citrus fruits, bell peppers, and strawberries, it supports white blood cell production and function. Vitamin D is another key nutrient that regulates immune responses. Fatty fish, egg yolks, and sunlight exposure are important sources. Deficiency in vitamin D has been linked to increased susceptibility to infections. Zinc supports immune cell growth and communication. Foods…
