Medical Weight Loss in Powell, Ohio
FDA-approved GLP-1 medications prescribed by a provider who lost 75 pounds on the same protocol. In-clinic or telehealth across Ohio.
Services & Pricing
Prescription Weight Loss That Actually Works
Medical weight loss at The Confidence Lab uses FDA-approved GLP-1 receptor agonists, semaglutide and tirzepatide, to reduce appetite, slow gastric emptying, and help your body release stored fat. These are the same medications behind the names Ozempic, Wegovy, Mounjaro, and Zepbound, prescribed at clinical doses and monitored by Anna Castellanos, MSN, APRN, FNP-C.
Anna lost 75 pounds on the same GLP-1 protocol she now prescribes. That firsthand experience shapes every plan she builds. She knows the plateaus, the side effects, and the emotional weight that comes with the physical weight, so she meets you where you actually are. Your plan includes monthly check-ins, dose adjustments based on how you respond, and direct access to your prescribing provider between visits.
Available in-clinic at our Powell location or by telehealth anywhere in Ohio. No referral needed, and no long-term contracts.
Weight Loss Programs and Pricing
See full pricing and book any service below. VIP members save on every treatment.
| Add-On | Price | What It Does for You |
|---|---|---|
| B-12 Injection Add-On | From $39 | Energy support that offsets the fatigue common during a caloric deficit on GLP-1 therapy. |
| Lipo-Mino Injection Add-On | $59 | Lipotropic amino-acid blend that supports fat metabolism alongside your weight-loss program. |
How GLP-1 Medications Work
GLP-1 receptor agonists mimic a hormone your body already makes, called glucagon-like peptide-1; given as a weekly injection, they work in four ways:
Hunger
They signal your brain’s appetite center to ease hunger between meals
Fullness
They slow gastric emptying, so you feel full longer after eating
Insulin Sensitivity
They improve insulin sensitivity, helping your body process glucose more efficiently
Cravings
They quiet cravings, especially for high-calorie, high-sugar foods
Which Medication Targets What
Semaglutide, the active ingredient in Ozempic and Wegovy, targets the GLP-1 receptor. Tirzepatide, in Mounjaro and Zepbound, targets both the GLP-1 and GIP receptors. That dual action can mean greater weight reduction for some clients.
What Clinical Trials Show
In clinical trials, average weight loss was 15 to 20 percent of body weight with semaglutide and 20 to 25 percent with tirzepatide over 68 to 72 weeks. Your own results depend on your starting weight, how you tolerate the dose, your eating, and your activity.
Before, During, and After Treatment
Here is exactly what to expect at each stage of your visit, so you can arrive prepared and know what happens before, during, and after your treatment.
Before
Your free consultation covers medical history review, current medications, and goal setting. Your provider reviews contraindications (personal or family history of medullary thyroid carcinoma, MEN 2 syndrome, pancreatitis). If eligible, your first injection can happen the same day or medication can be shipped for telehealth clients. No blood work required to start, though baseline labs are recommended.
During
Weekly self-administered subcutaneous injection (abdomen, thigh, or upper arm, we teach you at your first visit). Monthly provider check-ins via in-person or telehealth. Dose adjustments based on weight loss pace, side effect tolerance, and how you feel. Direct messaging access to Anna for questions between visits. Optional add-ons: B12 injections, Lipo-Mino shots, IV hydration for energy support.
After
When you reach your goal weight, Anna works with you on a maintenance plan. Options include staying on a lower maintenance dose, gradual taper with lifestyle coaching, or discontinuation with regular follow-up weigh-ins. There is no penalty for adjusting your plan. The goal is sustainable weight management, not dependency on medication.
What to Expect: Weight Loss Timeline
Starting dose (semaglutide 0.25mg or tirzepatide 2.5mg). Appetite reduction begins. Most clients notice decreased hunger within the first week. Mild GI side effects are common and typically resolve.
Dose titration phase. Weight loss becomes visible, most clients lose 5-10% of starting weight by week 12. Energy levels stabilize. Cravings for processed foods decrease significantly.
Therapeutic dose reached for most clients. Consistent weekly weight loss of 1-2 pounds. Clothing sizes changing. Blood sugar and cholesterol markers often improve.
Maintenance titration. Total weight loss of 15-25% of starting weight for most clients. Monthly check-ins continue. Discussion of long-term maintenance strategy begins.
Ongoing maintenance or gradual taper based on individual goals. Some clients maintain on lower doses long-term; others transition off medication with lifestyle support.
Is Medical Weight Loss Right for You?
Consider an alternative if…
Personal or family history of medullary thyroid carcinoma or MEN 2 syndrome
History of pancreatitis
Currently pregnant or planning pregnancy within 2 months
Under 18 years of age
Meet Your Providers
Anna Castellanos
Co-Owner & Board-Certified Family Nurse Practitioner
Anna lost 75 pounds on the same GLP-1 protocol she now prescribes, so she understands the nausea at dose increases, the plateaus, and the emotional side of changing your body. She built the weight-loss program around that lived experience, adjusting doses and checking in monthly.
Ashley Williamson
Co-Owner & Board-Certified Family Nurse Practitioner
Ashley is a board-certified Family Nurse Practitioner and co-owner of The Confidence Lab. She brings a detail-oriented, whole-person approach to metabolic health and ongoing care.
Semaglutide vs. Tirzepatide: How They Compare
| Feature | Semaglutide | Tirzepatide |
|---|---|---|
| Brand names | Ozempic, Wegovy | Mounjaro, Zepbound |
| Mechanism | GLP-1 receptor agonist | Dual GIP + GLP-1 receptor agonist |
| Administration | Weekly subcutaneous injection | Weekly subcutaneous injection |
| Starting dose | 0.25 mg | 2.5 mg |
| Maximum dose | 2.4 mg | 15 mg |
| Average weight loss (clinical trials) | 15-20% of body weight | 20-25% of body weight |
| Time to therapeutic dose | 16-20 weeks | 16-20 weeks |
| Common side effects | Nausea, constipation, diarrhea | Nausea, diarrhea, decreased appetite |
| Available at The Confidence Lab | Yes, in-clinic and telehealth | Yes, in-clinic and telehealth |
| Free consultation | Yes | Yes |
Pro Tips for GLP-1 Weight Loss Success
Hydrate aggressively
GLP-1 medications slow digestion. Drinking 80-100 oz of water daily reduces nausea and constipation, the two most common early side effects.
Eat protein first
With a smaller appetite, every meal matters more. Aim for 25-30g protein per meal to preserve muscle mass during rapid weight loss.
Time your injection consistently
Pick the same day and time each week. Many clients inject Friday evening so any GI side effects resolve over the weekend.
Move, but don’t overdo it
Walking 30 minutes daily supports weight loss without the caloric demands of intense exercise that can increase nausea on GLP-1 medications.
Track your measurements, not just the scale
GLP-1 weight loss often shows in inches before pounds, especially in the first month when water retention fluctuates.
Report side effects early
Nausea, vomiting, or constipation lasting more than 3 days often resolves with a dose hold or slower titration. Message Anna directly rather than waiting for your monthly check-in.
Plan for maintenance before you hit goal weight
Start discussing your maintenance strategy around the 70% mark of your weight loss goal. Abrupt discontinuation without a plan increases regain risk.
Telehealth Weight Loss, Available Across Ohio
Live in Columbus, Cincinnati, Cleveland, Dayton, or anywhere else in Ohio? Medical weight loss at The Confidence Lab is available by secure video visit. Same protocols, your own board-certified provider, the same monthly check-ins, without the drive to Powell.
How telehealth works:
Book your free consultation online
Meet your provider, Anna or Ashley, by secure video
If you are eligible, your medication ships directly to your home
Monthly follow-ups by telehealth or in person, your choice
Direct messaging access between visits
Ohio residents only. A valid Ohio address is required for medication delivery.
Services That Complement Weight Loss
Weight loss works best as part of a broader plan. These services pair well with your program at The Confidence Lab.
- IV Hydration & Wellness: Combat dehydration and fatigue during a caloric deficit; Energy and Recovery drips are popular.
- Vitamin Injections: B-12 and Lipo-Mino injections support energy and fat metabolism while on GLP-1 medication.
- Functional Medicine: Root-cause hormone testing (DUTCH) can surface metabolic factors affecting your response.
- Laser Skin Treatments: Refresh skin tone and texture after significant weight loss so your skin matches how you feel.
Frequently Asked Questions
How much does medical weight loss cost at The Confidence Lab?
Is the weight loss consultation really free?
What is the difference between semaglutide and tirzepatide?
How much weight can I expect to lose?
Do you offer telehealth for weight loss?
What are the side effects of GLP-1 medications?
Do I need blood work before starting?
How long do I need to stay on the medication?
Can I do this program if I live outside Powell?
Who prescribes the medication?
Do I inject myself?
Will my insurance cover GLP-1 medications?
What happens if I stop taking the medication?
How often do I need to come in for appointments?
Can I combine weight loss medication with other treatments?
Who is a good candidate for medical weight loss?
How is The Confidence Lab different from online weight loss clinics?
Do you prescribe Ozempic or Wegovy specifically?
Medical Weight Loss Near You
The Confidence Lab
4038 Powell Rd Powell, OH 43065
(614) 219-9983
Proudly serving: Powell, Dublin, Columbus, Westerville, Worthington, Delaware, Lewis Center, Upper Arlington, Hilliard, New Albany, Grandview Heights, Plain City, Marysville, Telehealth Ohio
Free Guide: GLP-1 Weight Loss, What to Expect in Your First 90 Days
Here is what to expect, stage by stage, so you know how your results develop and what is normal along the way.
Medical Weight Loss Guide
GLP-1 options, what to expect, and how our providers create personalized weight loss plans.
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Start Your Weight Loss Journey
Book a free consultation with Anna Castellanos, a board-certified provider who lost 75 pounds on the same protocol she prescribes. In-clinic in Powell or telehealth across Ohio.