The Center for GI Weight Loss is a medically supervised weight management program overseen by board certified gastroenterologist Dr. Ari Nowain.

The program, which ranges from 6-24 weeks and is customized to your unique needs, utilizes an OPTIFAST meal replacement plan that transitions to self-prepared ‘everyday’ meals, in conjunction with comprehensive patient education and support by a team of professionals.

Successful Medical Weight Loss

Our program succeeds because it treats the whole patient, focusing on more than just weight. A comprehensive medical weight loss program, the Center for GI Weight Loss surrounds the patient with a team of healthcare professionals, including physicians, registered dietitians and lifestyle counselors to help patients achieve long-term weight loss.


  • Meal replacement dietNarrowing your food choices helps you work towards weight loss and management by controlling the amount and types of food you eat.
  • Medical supervisionUtilizes the expertise of physicians to help you lose weight safely.
  • Lifestyle educationTo help you achieve and sustain better health through nutrition, exercise and lifestyle changes.
  • CounselingIndividual and group counseling by experts who understand your challenges.
  • Ongoing personalized supportIncluded both during and after weight loss to help you achieve and maintain success.

Are you Interested in Getting Started?

Getting started is easy. We invite you to meet our medical director and learn more about the program. We offer FREE consultation sessions at our Beverly Hills weight loss center. Take the first step and learn more.

Contact our Los Angeles office at (310) 689-9490 to start your weight loss journey.

Next, learn more about Ari Nowain, MD.