Pork
It’s important to get the recommended 8 to 11 mg of zinc per day to keep the immune system functioning properly, says Weiler. She recommends adding pork as another zinc source in a balanced diet, be it a grilled pork chop or tenderloin.
Almonds
Almonds are high in vitamin E, containing around 7 mg per serving, explains Lofton. Vitamin E is an antioxidant that can help protect cells from damage and therefore, potentially prevent illness.