A dietitian is offering tips on boosting your immune system by eating certain foods. Gina Keatley says mushrooms, which are packed with vitamin D and selenium, can help boost an immune system. Tea also offers the proper antioxidants to help boost the immune system. Additionally, lemon and honey contain antiviral properties. Shellfish is a good type of food to eat because it contains zinc, iron and protein. Keatley says aside from eating healthy, people should get a flu shot. It's also important to frequently wash your hands.
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