During the COVID-19 outbreak, herbal recipes have proved to be helpful to reduce the symptoms in China.

…For example, the black chokeberry extract has a high content of quercetin, which has health-protective activities such as prolonging life span, anti-proliferation, improving glucose and lipid metabolism, preventing neurodegenerative diseases ..

The urolithin A, fisetin and other substances discussed in the article are also present in daily edible fruits, such as pomegranates, berries, apples, and grapes.

https://pubmed.ncbi.nlm.nih.gov/35025006/