The present invention provides combination therapies for treating a metabolic disorder, such as type 2 diabetes, obesity, and related comorbidities (e.g., NASH or NAFLD)) in an individual undergoing treatment with a gastrointestinal implant. The combination therapies described herein include methods for treating an individual with a gastrointestinal implant with a metabolic agent, a bariatric procedure, and/or a microbiota modulator.