The main bariatric surgery options today are the gastric sleeve, gastric bypass, and the non-surgical gastric balloon, and choosing among them depends far more on your medical history and goals than on the number on the scale — a decision best made with an experienced surgeon like Michael Nusbaum, MD FACS · FASMBS at Nusbaum Medical Centers in Cedar Knolls, Morris County. With 25+ years and 25,000+ patients, Dr. Nusbaum treats bariatric surgery not as a shortcut but as a powerful clinical tool for people who have battled obesity despite serious, repeated effort. The right operation can transform weight, blood sugar, sleep apnea, joint pain, and daily confidence — but only when it is matched to the right patient.
- On this page:
- Who It's For
- The Procedures
- Choosing Wisely
- FAQs
Who Bariatric Surgery Is Designed For
Bariatric surgery is intended for patients living with obesity who have struggled to achieve or maintain meaningful weight loss through diet, exercise, and medication alone. It works by changing how much the stomach can hold, how full you feel, and — in some procedures — how the digestive tract absorbs calories and nutrients. Just as importantly, it shifts hunger hormones and metabolic signals in ways that dieting rarely can, which is why surgery delivers results that feel out of reach after years of yo-yo attempts.
Candidacy is generally guided by BMI and related health conditions. Patients with a BMI of 40 or higher, or 35 and above with obesity-related conditions like type 2 diabetes, hypertension, or sleep apnea, are often appropriate candidates. But numbers are only the starting point. A patient with severe reflux, someone who struggles primarily with portion size, and a person with longstanding diabetes may each be steered toward a different solution.
Our practice offers the full spectrum of surgical weight loss programs, and for younger patients we also provide adolescent medical weight loss. The American Society for Metabolic and Bariatric Surgery maintains helpful candidacy guidelines patients can review before a consultation.
The Main Procedures, Explained
Understanding how each option works makes the choice far less intimidating. Here are the primary bariatric surgery options we offer:
- Gastric sleeve (sleeve gastrectomy). The most common procedure today. About 75-80% of the stomach is removed, leaving a slim, banana-shaped sleeve. This both limits portions and reduces ghrelin, a key hunger hormone. Explore our gastric sleeve program.
- Gastric bypass (Roux-en-Y). Creates a small stomach pouch and reroutes part of the small intestine, combining restriction with reduced calorie absorption. It is often the preferred choice for patients with severe acid reflux or type 2 diabetes. Learn about gastric bypass.
- Gastric balloon. A non-surgical, temporary option in which a soft balloon is placed in the stomach to promote fullness — well suited to lower BMIs or patients not ready for an operation. See the gastric balloon system.
Each path carries its own recovery profile, nutritional requirements, and long-term considerations, which we walk through in detail during your evaluation.
How to Choose the Right Option
Choosing wisely means looking past the procedure name to the whole picture of your health. During a thorough evaluation, we weigh several factors together:
- Medical history — diabetes, reflux, and other conditions can strongly favor one procedure over another.
- Eating patterns — grazers, volume eaters, and sweet-cravers may respond differently to restrictive versus malabsorptive approaches.
- Goals and readiness — how much weight you need to lose, and your willingness to commit to lifelong follow-up and nutrition.
- Risk tolerance — surgical versus non-surgical, reversible versus permanent.
Surgery is a beginning, not an ending. The best outcomes pair the operation with structured nutrition, vitamin monitoring, and long-term support — and for many patients, medical therapy plays a role too. Some are candidates for a non-surgical medical weight loss program first, or a combination approach. Read more patient guides in The Nusbaum Journal, or book a consultation to find the option matched to you.
