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Medical Weight Loss in Los Angeles

Medical weight loss is physician-supervised care that combines a comprehensive health evaluation with evidence-based treatment, nutrition, activity, body-composition monitoring, and long-term planning.

At Weight Loss Clinic Los Angeles, every plan is individualized. We consider your medical history, current medications, previous weight-loss attempts, metabolic health, body composition, lifestyle, treatment preferences, and goals before recommending care.

Schedule a ConsultationCall 877-760-3558

What Is Medical Weight Loss?

Medical weight loss is a clinician-directed approach to treating overweight and obesity. It is different from a commercial diet plan or medication-only service because recommendations are made in the context of your overall health.

A medical program may incorporate nutrition and physical-activity recommendations, behavioral strategies, laboratory testing when indicated, body-composition assessment, prescription medication for eligible patients, and ongoing monitoring. Medication is one possible tool—not the entire plan.

The objective is not simply to produce the fastest change on the scale. Effective care aims to reduce excess body fat, preserve lean mass, improve health risks, and create a realistic strategy for maintaining progress.

A Physician-Led Weight Management Program

Weight regulation can be influenced by appetite biology, sleep, stress, medications, medical conditions, nutrition, activity, age, hormones, and genetics. A one-size-fits-all program may overlook factors that are relevant to both safety and results.

Our process begins with a comprehensive physician evaluation. If prescription treatment is appropriate, medication selection and monitoring are individualized rather than based on a standard online protocol.

Dr. David Nazarian, board-certified internal medicine physician in Los Angeles

Experienced Medical Oversight

Care is overseen by Dr. David Nazarian, a board-certified internal medicine physician with extensive experience evaluating weight-management medications, metabolic health, nutrition, supplements, and the medical factors that can affect weight.

Treatment recommendations are based on the whole patient: health history, medications, contraindications, laboratory findings when relevant, body composition, tolerability, response, and long-term goals.

Medical Weight Loss Options

Your plan may use one or several strategies. Recommendations depend on medical eligibility and are adjusted as your needs and response change.

Prescription Weight Loss Medication

For eligible patients, prescription medication may help with appetite regulation, satiety, food intake, or other pathways involved in weight management. The appropriate choice depends on your medical history and clinical goals.

Explore weight loss medications

GLP-1-Based Treatment

GLP-1 and related medications may be considered for appropriate patients as part of a broader program that includes nutrition, physical activity, medical oversight, and long-term planning.

Learn about GLP-1 weight loss

Nutrition and Body Composition

Nutrition recommendations can address protein, fiber, hydration, meal structure, and sustainable calorie reduction. Body-composition monitoring helps distinguish changes in fat mass from changes in lean mass.

Learn about nutrition and body composition

Lifestyle and Metabolic Health

Sleep, stress, physical activity, resistance exercise, medications, and metabolic conditions can influence weight management. These factors may be incorporated into an individualized plan.

Explore metabolic health services

Semaglutide and Tirzepatide Programs

Semaglutide

Semaglutide is a GLP-1 receptor agonist used for chronic weight management in appropriate patients. It can affect appetite and satiety and is intended to be used with nutrition and physical-activity changes. Our physician-guided Semaglutide program is $300 per month. The initial comprehensive physician evaluation is separate.

Learn more about Semaglutide in Los Angeles

Tirzepatide

Tirzepatide acts on both GIP and GLP-1 receptors and is used for chronic weight management in eligible adults. Treatment selection should consider indications, contraindications, prior response, side effects, availability, and individual goals. Our physician-guided Tirzepatide program is $499 per month. The initial comprehensive physician evaluation is separate.

Learn more about Tirzepatide in Los Angeles

Prescription treatment requires medical eligibility. Medication, laboratory testing, or additional services may involve separate costs depending on the individualized plan. Pricing and availability may change.

What Happens During Your Initial Evaluation?

1. Medical and Weight History

We review your current and previous medical conditions, medications, allergies, family history, weight pattern, prior diets, previous medications, treatment response, and reasons for seeking care.

2. Health-Risk Assessment

Weight is considered alongside blood pressure, glucose regulation, cholesterol, sleep, cardiovascular risk, gastrointestinal history, and other clinically relevant factors. BMI can be useful as a screening measure, but it does not describe body composition or health by itself.

3. Body-Composition Review

When appropriate, body composition is assessed to help establish a baseline and track changes in body fat and lean tissue. This allows the program to focus on the quality—not only the quantity—of weight loss.

4. Laboratory Testing When Indicated

Laboratory testing may be recommended based on symptoms, medical history, current treatment, and clinical judgment. Testing is not identical for every patient.

5. Individualized Plan

Your plan may include medication, nutrition targets, activity recommendations, resistance training when appropriate, supplements, and strategies addressing sleep, stress, or other health factors.

6. Follow-Up and Adjustment

Follow-up allows the physician to assess effectiveness, tolerability, nutrition, hydration, body composition, and changes in health. Treatment may be adjusted or discontinued when clinically appropriate.

Who May Be a Candidate?

Prescription weight-management treatment may be considered for adults who meet clinical criteria based on BMI and weight-related health conditions. Eligibility also depends on medical history, current medications, contraindications, pregnancy status, previous treatment, and the risks and benefits of each option.

A consultation is necessary because the medication that is appropriate for one person may not be appropriate for another. Some patients may benefit from non-medication strategies, while others may require coordination with their primary-care physician or specialist.

Why Medical Supervision Matters

Prescription weight-loss medications can have important contraindications, interactions, adverse effects, and dosing considerations. Medical oversight provides a structured process for patient selection, counseling, gradual dose adjustment when appropriate, and response monitoring.

Depending on the treatment and the individual patient, monitoring may address:

Preserving Muscle During Weight Loss

Weight reduction can involve loss of both fat and lean tissue. Preserving muscle is therefore an important part of a thoughtful program, particularly during significant or rapid weight loss.

Depending on individual needs and medical fitness, recommendations may include adequate dietary protein, resistance exercise, appropriate total calorie intake, and body-composition monitoring. These strategies support physical function, metabolic health, and long-term weight maintenance.

Medical Weight Loss Is More Than a Prescription

Medication may reduce hunger or improve satiety, but sustainable progress still depends on habits and health factors that continue beyond a prescription. Our approach may address meal composition, portion size, protein, fiber, hydration, physical activity, sleep, stress, and realistic maintenance planning.

We also discuss what may happen if medication is reduced or stopped. Weight regain can occur, so maintenance deserves attention from the beginning rather than only after a goal weight is reached.

Frequently Asked Questions

How much weight can I lose with medical weight loss?

Results vary according to the treatment, starting weight, medical conditions, adherence, dose, duration, nutrition, activity, and individual biology. A consultation can help establish realistic expectations, but no specific result can be guaranteed.

Do I have to take medication?

No. Medication is one possible component of medical weight management and is recommended only when clinically appropriate. Some patients may use nutrition, activity, behavioral, or other strategies without prescription weight-loss medication.

Which weight loss medication is best?

There is no single best medication for everyone. The appropriate option depends on medical history, weight-related conditions, contraindications, prior response, side effects, treatment goals, and physician judgment.

What is the difference between medical weight loss and an online injection service?

A comprehensive medical program evaluates the person—not only the prescription request. It can incorporate health risks, medication interactions, nutrition, body composition, laboratory testing when indicated, side-effect management, and long-term planning.

Are Semaglutide and Tirzepatide the same?

No. Semaglutide is a GLP-1 receptor agonist. Tirzepatide activates both GIP and GLP-1 receptors. Both require appropriate medical evaluation, and neither is the best choice for every patient.

How often will I need follow-up?

Follow-up frequency depends on the medication, dose-adjustment period, medical history, response, side effects, and clinical needs. Your physician will recommend a schedule appropriate for your plan.

Do you provide nutrition guidance?

Yes. Nutrition and body-composition strategies are part of our comprehensive approach. Recommendations are individualized and may include protein, fiber, hydration, meal structure, calorie intake, and muscle-preservation goals.

Do you serve Beverly Hills and West Hollywood?

Yes. Our Los Angeles practice serves patients from Beverly Hills, West Hollywood, Century City, Hollywood, and surrounding communities.

Schedule a Medical Weight Loss Consultation

If you are considering physician-guided weight management, schedule a comprehensive evaluation. We will review your health, previous treatment, goals, and appropriate options before developing an individualized plan.

Schedule Your ConsultationCall 877-760-3558

Medical References

Medical review: Dr. David Nazarian, Board-Certified Internal Medicine Physician. This page is for general education and does not replace individualized medical advice, diagnosis, or treatment. Prescription therapy requires an appropriate medical evaluation. Individual results vary.

Written by

David Nazarian, MD

Board-Certified Internal Medicine Physician with extensive training in obesity medicine and medical weight management. Dr. Nazarian uses an evidence-based, integrative 360° approach that considers metabolic health, hormone and vitamin deficiencies, sleep, nutrition, lifestyle, medications and other medical factors that may affect weight. His care emphasizes individualized evaluation, clear communication, safety, ongoing follow-up and long-term success.

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Medically reviewed by

David Nazarian, MD

Reviewed for clinical accuracy and patient-safety context.

Last medically reviewed: September 12, 2026

Patient Experience

What Patients Say About Dr. Nazarian

Individual experiences vary. Testimonials reflect the experiences of the patients quoted and do not guarantee outcomes.

★★★★★

“Dr. Nazarian and his staff are so knowledgeable and friendly. I am finally losing weight! I feel amazing and I’m getting a lot of compliments.”

Andrea Albright — Google review

★★★★★

“Dr. Nazarian and his team have made me feel heard and understood as I navigate and try to reach my weight loss goals… His medical weight loss plans feel tailored to each individual.”

A Casey — Google review

★★★★★

“I really enjoy coming to see Dr. Nazarian in Beverly Hills for weight loss options… He asked questions about my goals and eating habits… I left feeling optimistic.”

Lizzette L. Schneider — Google review