Black coffee consumption can provide the body with essential nutrients that can promote overall health. Compared to other foods, although it is not a significant source of nutrients, it does provide small amounts of important nutrients. For example, black coffee naturally contains potassium, magnesium and niacin. These nutrients play an important role in many processes in the body.
Source: https://www.allmedscare.com/9-black-coffee-benefits-on-health.html
