If your labs come back “normal” but the weight keeps climbing - despite tracking food, working with trainers, and trying every plan - you're not failing. Your biology is working against you in ways most doctors don't address until you're already pre-diabetic. That's the conversation that brings most people to our Ann Arbor clinic asking about GLP-1 therapy.
By Gandhi Bhattarai, FNP-BC, PMHNP-BC - founder, Arbour Longevity, Ann Arbor.
Medically reviewed by Gandhi Bhattarai, FNP-BC, PMHNP-BC - June 6, 2026.
Why “eat less, move more” keeps failing
The old calorie model - eat less than you burn - is neat math and incomplete medicine. Your body defends its weight with surprising precision. After months of dieting, your hunger hormone (ghrelin) rises, your fullness hormone (leptin) drops, and your body quietly turns down how many calories it burns. You get hungrier and your metabolism slows, so the weight comes back. That's why 80–95% of people regain the weight within five years - not from weakness, but from predictable hormone changes. The fuller version of this is in medical weight loss vs diet culture.
How GLP-1 medications actually work
GLP-1 is a gut hormone your body releases after eating that tells your brain “you've had enough.” In many people with obesity, that signal is weak. GLP-1 medications (semaglutide and tirzepatide) restore it. They slow how fast your stomach empties so you stay full longer, steady your blood sugar, and - importantly - quiet the constant background “food chatter” in your brain. Most people describe not just eating less, but genuinely wanting less. In the major trials, semaglutide produced about 15–17% average weight loss and tirzepatide about 20–22% - close to surgery-level results without surgery. Which one fits whom is covered in semaglutide vs tirzepatide. GLP-1 receptors also sit well outside the appetite centres, which is why the research now extends into cardiovascular and metabolic protection - covered in GLP-1 therapy beyond weight loss.
What clinical response looks like
What I see in clinic: a patient who'd tried keto, fasting, and two years with a nutritionist, with a high fasting insulin signaling early insulin resistance. On a slow, low-to-higher dose plan, the food chatter quieted within a few weeks, and she lost weight steadily without counting calories - about 1–2 pounds a week during the build-up - while her insulin normalized. It's not universal: some people get nausea while increasing the dose, some lose less, and a few don't respond much. But for most people whose bodies resist ordinary dieting, this addresses the biology willpower can't.
Our approach in Ann Arbor
We don't hand out GLP-1 at the first visit. We start with real metabolic testing - fasting insulin and glucose, HbA1c (a 3-month blood-sugar average), cholesterol, and a full thyroid panel. Sometimes the real problem is an underactive thyroid, chronic stress, or a hormone imbalance that responds better to a different fix - a man with low testosterone, for instance, may lose weight just by correcting his hormones (see testosterone therapy). When GLP-1 is the right tool, we use FDA-approved medication with a slow, careful dose build-up to avoid nausea, protect your muscle with protein and strength training, and plan for long-term maintenance from the start. We use FDA-approved versions, not gray-market sources (more on the compounding rules).
What to expect
Your first visit covers your history, past attempts, and any reasons not to use these medications (like a personal or family history of medullary thyroid cancer or MEN2) - there is a fuller walkthrough in what to expect at your first medical weight loss consultation. We order labs first, and most people start within 7–10 days, with check-ins every four weeks while we adjust the dose. The $35 consultation applies toward your plan if you proceed. Most patients pay out of pocket since insurance coverage for weight loss is inconsistent, and we're upfront about cost before you start - the full breakdown is in how much medical weight loss costs in Ann Arbor, and many patients pay with an HSA or FSA card.
Frequently Asked Questions
Is semaglutide safe if I'm not diabetic?
Yes. Semaglutide and tirzepatide are FDA-approved for weight management in adults without diabetes who have a BMI of 30+, or 27+ with a weight-related condition. Using them before diabetes develops may even help prevent it. Most side effects are stomach-related and ease with slow dosing.
How much weight can I expect to lose?
Most people lose about 15–20% of their starting weight over 12–18 months, though it varies. A 200-pound person might lose 30–40 pounds. Weight loss usually peaks around 14–16 months, and keeping it off generally needs an ongoing, lower maintenance dose.
What are the side effects?
Nausea is the most common, especially while increasing the dose, and usually fades within a few weeks. Constipation and occasional diarrhea happen too. Serious problems like pancreatitis are rare (under 1%), which is why we monitor symptoms and check labs along the way.
How fast will I see results?
Most people notice less appetite and some early weight loss in the first 2–4 weeks, with bigger changes by week 12. Metabolic improvements like lower fasting insulin often show up within 8–12 weeks, sometimes before major weight loss.
Does insurance cover it?
Coverage is inconsistent. Some commercial plans cover it with prior authorization; many exclude weight-loss medications, and Medicare generally doesn't cover them for weight loss alone - what changed for Michigan Medicare in 2026 goes through that in detail. Most of our patients pay out of pocket, and we help with prior authorization when it's possible.
Will I have to take it forever?
Often, at a lower maintenance dose, because obesity is a chronic condition - stopping usually leads to regain. Some people can step down further over time. We're transparent about this from day one.
If this sounds familiar
If you've spent years trying to override your biology with discipline, or you're heading toward pre-diabetes and want to act before it becomes disease, this is the conversation we have daily. GLP-1 isn't for everyone and doesn't replace good nutrition and movement - but for people whose bodies resist dieting, it's a real path that respects the biology. Your first step is a $35 consultation.
Arbour Longevity · 2217 Packard St #15, Ann Arbor, MI 48104 · (734) 436-3357 · Thursday through Monday, 10am to 7pm.
References
- Wilding JPH, et al. Once-Weekly Semaglutide in Adults with Overweight or Obesity (STEP 1). NEJM 2021;384:989-1002.
- Jastreboff AM, et al. Tirzepatide Once Weekly for the Treatment of Obesity (SURMOUNT-1). NEJM 2022;387:205-216.
- Lincoff AM, et al. Semaglutide and Cardiovascular Outcomes in Obesity without Diabetes (SELECT). NEJM 2023;389:2221-2232.
This article is educational and does not replace individualized medical advice.
Gandhi Bhattarai, FNP-BC, PMHNP-BC, Anti-Aging/Functional Medicine BC
Triple board-certified nurse practitioner and founder of Arbour Longevity in Ann Arbor. Every article is written from clinic practice and reviewed against current guidelines.
✓ Medically reviewed · Last updated June 8, 2026
How we reviewed this article
Arbour Longevity articles are written by the treating clinician, checked against primary sources (peer-reviewed journals, FDA labeling, Endocrine Society and other specialty guidelines) and re-reviewed when guidance changes. See our editorial policy. Spotted an error? Email info@arbourlongevity.com.
This article is educational and is not a substitute for individualized medical advice. Whether a treatment is appropriate for you is determined during consultation.
Your symptoms have a cause. Let’s find it.
Book a $35 first visit in Ann Arbor. It’s a 30–45 minute consultation with Gandhi Bhattarai, applied toward your plan. Serving Ann Arbor, Ypsilanti, Saline, Dexter, Chelsea, and Michigan by telehealth.
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