This "one of a kind sushi fast food restaurant" in Pioneer Square promises that “you no longer have to settle for sushi made from white rice.” Instead, they offer sprouted brown rice, which apparently is high in gamma amino butyric acid (thus the name), which, they claim, "helps to maintain balance in the brain and to prevent Alzheimer’s disease... [and] can have the following benefits: lower anxiety, increased sleep cycle for deeper rest, lower blood pressure, and other improved cardiovascular functions." As healthy as Gaba's sprouted brown rice may be, Billy Beach (formerly of Umi Sake House, now at Japonessa) is involved, so there's lots of aioli and other drizzled sauces.