As the COVID-19 pandemic continues after nearly two years, people continue searching for new ways to take control of their health and support overall wellness. This interest in self-care has led to increased interest in immune-strengthening strategies, including the use of dietary supplements.No supplements can prevent or treat COVID-19 or other illnesses, but a combination of healthy lifestyle practices and the responsible use of science-backed supplements can keep the immune system functioning at its best. A strong immune system is your best defense against any germs you may encounter.