An apparatus for gastric bypass is disclosed. The apparatus for gastric bypass includes a primary passage having an input and an output. The apparatus also includes a bypass conduit, coupled to the primary passage, having an input and an output, wherein the passage input is interspersed with the conduit input. The apparatus further has a primary regulator coupled to the primary passage and adjustable to control a primary flow profile from the input to the output of the primary passage. The apparatus also has a bypass regulator coupled to the bypass conduit and adjustable to control a bypass flow profile from the input to the output of the bypass conduit.