Herbal Remedies, Nutraceuticals, and Dietary Supplements for COVID-19 Management: An Update

•Immunopathophysiology of COVID-19.•Several ayurvedic remedies are effective during this dangerous Coronavirus pandemic.•For COVID-19, herbal medicines that have immunomodulatory effects may hold a promising preventive approach for treating patients.•Nutraceutical drugs and dietary supplements such as vitamins and amino acid derivatives play a significant part in Coronavirus therapy.•Diet can assist in regulating inflammation, while nutraceuticals can aid in the prevention of viral invasion.