Weight Loss Plans
Medical Weight Loss in Los Angeles — GIFN Fit Program
Medically Supervised Weight Loss at Giffen Health, Los Angeles
Losing weight isn’t just about willpower — it’s about having the right medical support, the right tools, and a plan built around your body.
The GIFN Fit program at Giffen Health combines the latest GLP-1 medications with targeted peptide therapy and personalised guidance from Lisa Giffen, FNP-C — all from our Melrose Ave location in Los Angeles.
This isn’t a generic weight loss program. Every GIFN Fit plan is built around your health history, metabolism, lifestyle, and goals — with weekly check-ins and direct access to our medical team. You can also complement your weight loss with XBody EMS Training for muscle toning and body sculpting support.
Medications We Offer
•  Tirzepatide (Mounjaro/Zepbound) — a dual GIP/GLP-1 receptor agonist shown to produce significant weight loss
• Retatrutide — a next-generation triple agonist for enhanced metabolic results
• BPC-157 — a peptide injection supporting gut health, recovery, and inflammation
• AOD-9604 — a fat-metabolizing peptide derived from HGH
• Semorelin — a growth hormone releasing peptide that supports body composition
Learn more about our full Peptide Therapy offerings and how customized peptide protocols can support recovery, metabolism, and overall wellness.
How GIFN Fit Works
Step 1: Comprehensive Consultation — Lisa reviews your full health history, current medications, and weight loss goals to determine the right protocol for you.
Step 2: Personalized Prescription — Based on your assessment, Lisa prescribes the appropriate GLP-1 medication and any complementary peptide injections.
Step 3: Weekly Check-Ins — We monitor your progress, adjust dosing as needed, and provide ongoing support to manage any side effects.
Step 4: Long-Term Maintenance — As you approach your goal, we transition your plan to focus on sustaining results and building healthy habits that last.
Transforming your body? Ask about Morpheus8 for skin tightening as you lose weight as part of your overall transformation journey
Who Is GIFN Fit For?
- Adults with a BMI over 27 who have struggled with traditional weight loss methods
- Those looking for medically supervised alternatives to surgery
- Clients who want to complement their aesthetic treatments with body transformation
- Anyone wanting a science-backed, personalized approach to weight management
- Clients already on GLP-1 medications who want better monitoring and support
Hormone imbalances can affect weight — explore BioTE Hormone Optimization alongside their weight loss program.
Why Choose Giffen Health for Weight Loss in LA?
Many LA weight loss clinics offer GLP-1 medications through a telehealth portal with minimal follow-up. At Giffen Health, you’re seen in-person by Lisa Giffen FNP-C — a certified nurse practitioner who can monitor you holistically, adjust your protocol, and combine weight loss with complementary wellness and aesthetic treatments under one roof on Melrose Ave.
What is Tirzepatide?
Tirzepatide is an FDA-approved medication that helps regulate appetite and glucose levels, making it an effective treatment for weight loss. It mimicks a hormone that targets areas of the brain involved in appetite regulation.
What are the benefits?
Tirzepatide has been shown to help patients achieve significant weight loss, improve metabolic health, and maintain long-term results. It offers a safe and effective alternative to traditional weight loss methods.
Safety & side effects
While Tirzepatide is generally well-tolerated, some patients may experience mild side effects such as nausea or fatigue. Our team is here to manage any side effects and provide support throughout your treatment.
Get Ready to Transform Your Body & Mind
Our weight loss program combines Tirzepatide injections with personalized diet and exercise plans. We start with a comprehensive consultation to understand your goals and health status, then tailor a program specifically for you.
Individuals struggling with obesity or weight-related health issues, who have not had success with other weight loss methods, may be good candidates for Tirzepatide injections. A thorough medical evaluation will determine your suitability.
Patients can expect to receive weekly Tirzepatide injections, along with regular check-ins with our medical team. We monitor your progress closely to ensure the best possible outcomes and adjust your plan as needed. Our dedicated team offers not just cutting-edge treatments like GLP-1 injections but also unwavering support, helping you achieve a healthier, more vibrant self.
Start Your Transformation Today
Embrace a healthier, more confident you with our weight loss services. Our dedicated team is here to guide you towards achieving and maintaining your ideal weight with professional care and personalized attention.
Frequently Asked Questions
WHAT IS TIRZEPATIDE AND HOW DOES IT WORK?
Tirzepatide is an FDA-approved injectable medication that activates both GLP-1 and GIP receptors in the body — two hormones that regulate appetite, blood sugar, and fat metabolism. Clinical trials have shown it can produce significantly greater weight loss than Semaglutide alone, making it one of the most effective medical weight loss options currently available.
HOW IS RETATRUTIDE DIFFERENT FROM TIRZEPATIDE?
Retatrutide is a next-generation triple agonist that activates GLP-1, GIP, and glucagon receptors simultaneously. Early clinical data shows it may produce even greater weight loss than Tirzepatide. Lisa Giffen will help you determine which medication is most appropriate based on your health profile and goals.
WHAT ARE THE SIDE EFFECTS OF GLP-1 MEDICATIONS?
The most common side effects are nausea, mild digestive discomfort, and occasional fatigue — particularly during dose escalation. These typically improve as your body adjusts. Our medical team is available to help manage side effects and adjust your dose as needed.
HOW QUICKLY WILL I SEE RESULTS?
Most clients notice appetite changes and early weight loss within the first 2–4 weeks. Significant results are typically visible at 8–12 weeks. Individual results vary based on starting weight, metabolism, diet, and activity level.
DO I NEED TO CHANGE MY DIET WHILE ON THE PROGRAM?
GLP-1 medications naturally reduce appetite and cravings, which makes dietary changes easier. Lisa provides nutritional guidance as part of the GIFN Fit program — you won’t be handed a generic meal plan, but you will get practical, realistic guidance that works alongside your medication.
CAN I COMBINE WEIGHT LOSS TREATMENT WITH OTHER GIFFEN HEALTH SERVICES?
Absolutely — and many clients do. Significant weight loss can sometimes affect skin laxity and facial volume. Combining GIFN Fit with treatments like Morpheus8 for skin tightening, PDO Threads, or fillers is something Lisa can plan for as part of your overall transformation.
Serving Los Angeles and surrounding cities including Long Beach, Anaheim, Beverly Hills, Encino, Irvine, Huntington Beach, Newport Beach, Costa Mesa, Santa Ana, Alhambra, Burbank, Beverly Hills, Brentwood, Manhattan Beach, Marina Del Rey, Venice, Orange County, Pasadena, Hollywood, West Hollywood, Santa Monica, Santa Clarita, Sherman Oaks, Studio City and other surrounding areas in Southern California.