Weight-Loss Medications vs. Bariatric Surgery: What's Right for You?

Achieving and maintaining a healthy weight is not the same for everyone. With the latest bariatric surgery procedures and GLP-1 medications, our Complete Weight Management Program offers choices and support to achieve your weight-loss goals.

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Updated February 24, 2026

By Samuel Wasser, MD, Bariatric Surgeon, Virtua Complete Weight Management Program

Diets, gym memberships, weight-loss drugs, surgery—there are more options than ever before on how best to lose weight. Frankly, it can be a bit overwhelming.

Achieving and maintaining a healthy weight is a journey that looks different for everyone. Our Complete Weight Management Program is built around providing people with choices and the adjuvant therapies they need, like nutrition and behavioral health support.

BMI requirements for weight-loss medications and bariatric surgery

Your weight-loss journey is determined by your body mass index (BMI) and your existing health.

Medication is an option if:

Your BMI is between 27 and 29.9 and you have a condition such as high blood pressure, coronary artery disease, diabetes, sleep apnea, or gastroesophageal reflux disease (GERD)
Your BMI is 30 or higher and you don’t have other health concerns

Bariatric surgery may be recommended if:

Your BMI is between 35 and 39.9 and you have certain health conditions
Your BMI is 40 and greater and you don't have other health issues

At our practice, you may see a surgeon, but we are not pushing a sleeve gastrectomy or gastric bypass. We are all obesity medicine specialists and will work with you to find the best pathway to success.

GLP-1 weight-loss medications: benefits, results, and side effects

Virtua offers the latest FDA-approved medications that, along with healthy eating and exercise, can help you lose weight. GLP-1 or GLP-1/GIP drugs mimic natural gut hormones that regulate your blood sugar and tell your brain you’re full, so you eat less. They include Zepbound, Wegovy, and Saxenda.

Ask your insurance plan which medications they cover.

The medications can have side effects like nausea, constipation, heartburn, and fatigue. So, it’s not unusual to switch medications. There’s no one-size-fits-all solution for weight loss. If you’re having issues with one medication, we can provide another option.

It’s also important to note that medication and surgery can both be part of your weight-loss journey. You may begin with medication and later decide to undergo bariatric surgery, or vice versa. Our program is designed to provide you with the most effective weight-loss therapies available.

How do GLP-1 weight-loss medications and bariatric surgery compare?

Medical weight loss and bariatric surgery are two effective approaches to treating obesity, and the right choice depends on your BMI, health conditions, and weight-loss goals. Medical weight loss uses FDA-approved medications to achieve gradual, flexible weight loss of about 10 to 20% of your total body weight.

Bariatric surgery is recommended for people with higher BMIs and typically results in greater, faster weight loss of about 30 to 35% but involves permanent anatomical changes and lifelong follow-up.

These options are not mutually exclusive—many patients use medication before or after surgery as part of a comprehensive, long-term weight management plan. Virtua’s Complete Weight Management Program provides nutrition counseling and behavioral support to individuals taking GLP-1 medications and undergoing bariatric surgery.

Feature	Medical Weight Loss	Bariatric Surgery
What it is	Non-surgical approach using FDA-approved weight loss medications, nutrition, and behavioral support	Surgical procedures that change the digestive system to promote weight loss
Eligibility	BMI ≥27 with obesity-related conditions or BMI ≥30 without them	BMI ≥35 with obesity-related conditions or BMI ≥40 without them
Typical weight loss	~10–20% of total body weight with GLP-1/GIP medications	~30–35% of total body weight
Speed of results	Gradual, steady weight loss	Faster initial weight loss
Common risks/side effects	Nausea, constipation, heartburn, fatigue; often manageable or reversible	Surgical risks, vitamin deficiencies, need for lifelong supplementation
Reversibility	Weight can be gained back if medications are stopped	Permanent anatomical changes
Lifestyle requirements	Nutrition counseling, exercise, and behavioral support	Strict dietary changes, vitamin supplementation, lifelong follow-up
Long-term support needed	Ongoing medication management and lifestyle support	Lifelong medical and nutritional monitoring
Insurance coverage	Varies by plan and medication	Often covered when medical criteria are met
Best for	Patients seeking a non-surgical, flexible approach	Patients with severe obesity or those needing significant, sustained weight

Virtua offers the weight-loss support you need

Weight loss has many benefits, including lowering blood pressure and cholesterol, putting diabetes into remission, easing joint pain, treating sleep problems, and enhancing mood.

Having access to a team of clinicians, behavioral health specialists, dietitians, navigators, and support groups is essential to meeting your health needs and achieving long-lasting success.

Be wary of websites where you can obtain medication without ever seeing an obesity expert or having access to the nutrition and behavioral support you need. With our program, you have an obesity medicine team that cares about you and is dedicated to your long-term success.

Get started on your weight-loss journey

Our obesity-medicine specialists can help you gain the life you want and feel better, inside and out. Learn more about the Complete Weight Management Program at Virtua.