This juice is pressed from fresh black radish roots. Black radish juice contains a component that improves peristalsis and helps move digested food through the gastrointestinal system. This lubrication and increased peristalsis help those suffering from constipation since these actions improve, and can even eliminate, this disorder.

Drinking black radish juice is considered beneficial during the winter months when some people are prone to suffer from respiratory infections. It is used in Asia to treat bronchitis and coughs. The extract or juice contains antimicrobial and antiviral properties. These help protect the immune system from afflictions like sore throats, bacterial infections, and viruses such as colds and flu. One study showed that black radish juice provided more protection than penicillin against E. coli bacteria.