Medical Weight Loss & GLP-1 in Lisle, IL | Defiant Health
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New Client Offers — Cryo $25 • Hyperbaric $49 • EMS $49 • Neurotoxins $11/unit →
New Client Offers
Cryotherapy$25
Hyperbaric Oxygen$49
EMS Sculpting$49
Neurotoxins$11/unit
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Aesthetics Overview Acne Bootcamp
Weight Loss Overview Tirzepatide Semaglutide
Peptide Therapy Overview Sermorelin Tesamorelin
IV & Shots Overview NAD+ Therapy
Wellness Overview Hyperbaric Oxygen Therapy Infrared Sauna Cryotherapy Styku 3D Body Scan BrainTap Meditation Diagnostic Testing
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Lisle, IL

Medical Weight Loss

Medically supervised weight loss with GLP-1 injections, semaglutide, tirzepatide, and personalized peptide protocols. Every program is built around your labs, your goals, and your biology — not a one-size-fits-all template. Serving Naperville, Downers Grove, Wheaton, Bolingbrook & the Chicago suburbs.

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A Smarter Approach

What Is Medical Weight Loss?

Medical weight loss combines FDA-approved GLP-1 medications like semaglutide, tirzepatide with personalized dosing, lab work, and ongoing adjustments. Built to work with your biology, support sustainable fat loss, and protect lean muscle along the way.

At our Lisle clinic, every program starts with a 3D body composition scan and a provider consult, then tailors the protocol to your goal, whether that’s losing 50+, cutting 15, recomposing, or maintaining. We see clients from across the Chicago suburbs: Naperville, Downers Grove, Wheaton, Bolingbrook, Lombard.

Medical Weight Loss & GLP-1 Programs

Custom GLP-1 Protocol

from $295/mo

Members save 20%

Tailored dosing and medication based on your labs, goals, and response.

Semaglutide

2-50mg • Ongoing weekly

GLP-1 receptor agonist for appetite control, weight management, and metabolic health.

Tirzepatide

5-120mg • Ongoing weekly

Dual GIP/GLP-1 agonist for powerful weight loss, blood sugar control, and satiety.

Additional Options

Provider-matched

Additional weight loss and metabolic peptide protocols are available. We match the right option to your labs and goals at your consultation.

Pricing is discussed during your consultation. Every protocol is built around your labs, goals, and lifestyle.

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Your Program

This Isn't a Run-of-the-Mill Online Program

We do the legwork so you don't have to. Every peptide protocol at Defiant is medically supervised, data-driven, and built entirely around your biology.

01

3D Body Scan

Full composition analysis every 4 weeks to track real progress — not guesswork.

02

Weekly Nurse Check-Ins

Dedicated support to monitor symptoms, side effects, and progress every week.

03

Titrations as Needed

Dosing adjusted in real-time based on your labs, response, and how you feel.

04

Personalized Care

Tailored to your lifestyle, your schedule, and your goals. Healthcare that works around you.

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FAQ

Medical Weight Loss Questions

Plain-language answers to the most common questions about our medically supervised weight loss program in Lisle, IL.

Medical weight loss is a medically supervised program that combines FDA-approved medications like semaglutide, tirzepatide, and other GLP-1 injections with personalized care and ongoing adjustments. At Defiant in Lisle, IL, every program starts with a 3D body composition scan and a one-on-one consultation with a provider.
Every program starts with a free consultation, recent bloodwork, and a Styku 3D body composition scan so your provider can build a plan around your labs and goals. From there you get a custom GLP-1 protocol with a dose that titrates every two weeks based on how your body responds, plus ongoing nurse and provider check-ins. We track progress by body composition, not just the number on the scale.
GLP-1 (glucagon-like peptide-1) medications like semaglutide and tirzepatide work by mimicking a hormone your body naturally produces. They slow gastric emptying, reduce appetite, and improve insulin sensitivity. The result: you feel fuller longer, eat less without willpower, and your metabolism shifts toward fat-burning.
Semaglutide targets one receptor (GLP-1), while tirzepatide targets two (GLP-1 and GIP). Tirzepatide tends to produce slightly greater weight loss in clinical trials, but semaglutide has a longer track record. Your provider will recommend the right option based on your goals, medical history, and how your body responds.
Yes. We review recent bloodwork before your first dose to confirm a GLP-1 protocol is appropriate and safe for you. If you do not have recent labs, we write the order and the draw is done through your primary care provider or Rythm Health. Bloodwork also gives us a baseline to track as you progress.
Much of the program can be done virtually. Consultations and follow-up check-ins are available by telehealth for patients across Naperville and Chicago's western suburbs, and medication can be shipped or picked up. The initial body composition scan is done in-clinic in Lisle, and we will let you know if anything else needs an in-person visit.
Results vary based on your starting weight, medication, dosing, and lifestyle. Clinical trials of semaglutide and tirzepatide show average weight loss of 15-22% of body weight over 12-18 months when paired with lifestyle changes. Your provider will set realistic expectations during your consultation.
Most patients notice reduced appetite within the first week or two on the starter dose. Meaningful weight change builds gradually as the dose increases over the following months. Because the first month runs on a low starter dose, the larger losses typically come later. Your provider sets realistic expectations at your consultation and adjusts based on how you respond.
The most common side effects are mild and usually temporary: nausea, decreased appetite, and occasional digestive changes during the dose-adjustment phase. Our nurse team checks in weekly to manage any side effects and adjust your protocol if needed.
Custom GLP-1 protocols start at $295/month. Full ongoing weekly programs range from $185-$295/month depending on the medication and dosing. Members save 20% on all programs. We do not bill insurance directly.
Defiant Health is located at 5100 Lincoln Ave, Lisle, IL 60532, serving Chicago's western suburbs including Naperville, Downers Grove, Wheaton, Bolingbrook, and Lombard.
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