Plants are a rich source of many phytonutrients that protect them from diseases, heat, radiation, poisons, and pollutants. Such phytonutrients also have numerous health benefits for humans as they provide antioxidant protection to the body’s cells, fight inflammation, and can boost immune system function. In developed countries, active plant components have been shown to be effective against major health problems such as cancer, cardiovascular disease, diabetes, and high blood pressure. Recently, during the COVID-19 pandemic, the antiviral benefits of phytonutrients such as quercetin (found in red onions), curcumin (an extract from turmeric root), green tea extract, and resveratrol (found in red grapes) have gained renewed interest.
Below, in the context of the COVID-19 pandemic, we outline the health benefits of some key phytobiological components.