Sassafras

Sassafras (Sassafras albidum) is a deciduous tree native to eastern North America. It has distinctive mitten-shaped leaves and aromatic bark. The root bark was traditionally the main flavoring for root beer until safrole was identified as a health concern.

Native Americans used sassafras for various purposes: as a spring tonic, for skin conditions, and to flavor foods. Early European settlers adopted it as a tea and folk remedy for blood purification, rheumatism, and skin ailments. It was also the original flavoring for root beer.

Research in the 1960s-70s identified safrole as hepatotoxic and carcinogenic in animal studies. This led to FDA bans on safrole in food products. Modern root beer uses artificial or safrole-free sassafras extracts. Limited evidence supports any medicinal use.

Historically used as a tea from root bark or leaves. Today, safrole-free extracts may be used for flavoring. Essential oil (containing safrole) is sometimes used externally in aromatherapy, though this is not recommended.

IMPORTANT: Safrole is classified as a probable human carcinogen and hepatotoxin. Internal use of sassafras containing safrole is not recommended. Banned for food use in the US and many other countries. May interact with blood thinners and sedatives. Pregnant and nursing women should avoid.