Roots Tonic is the name of the three piece reggae/dub/rock band best known as Matisyahu's backing band for live shows and studio recordings. The band is made up of Aaron Dugan (guitar and sounds), Josh Werner (bass and keyboard, also co-writes songs with Matisyahu), and Jonah David (drums and percussion). They already have recorded two studio and a live album with Matisyahu, but the name Roots Tonic was first mentioned on the inside cover of Matisyahu's 2006 major label album Youth and its' dub version, Youth Dub.

Youth producer Bill Laswell was so impressed of the band that he invited them to record a dub album with him. And so they did, the result was released in mid 2006 on Reach Out International Records and was entitled Roots Tonic meets Bill Laswell.

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