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Medical Weight Loss · Kingwood, The Woodlands & New Caney

GLP-1 Weight Loss: How It Works

GLP-1 medications have changed what is possible for weight loss. Here is how they work, who they help and what treatment looks like with a physician.

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The science

What is a GLP-1?

GLP-1 (glucagon-like peptide-1) is a hormone your gut releases after eating. It tells your brain you are full, slows how quickly your stomach empties and helps your pancreas release insulin when blood sugar rises.

GLP-1 medications mimic this hormone, and some, like tirzepatide, also act on a second hormone called GIP. The result is less hunger, fewer cravings and smaller portions without constant willpower.

What patients often notice

  • Feeling full sooner
  • Fewer cravings and less food noise
  • Smaller portions
  • Steadier blood sugar
  • Gradual, steady weight loss

Options

GLP-1 medications we discuss

Medications

  • Semaglutide, a once-weekly GLP-1
  • Tirzepatide, a once-weekly GIP and GLP-1
  • Dose increased gradually over weeks
  • Paired with nutrition and strength guidance

Good candidates often have

  • BMI 30 or higher
  • BMI 27 or higher plus high blood pressure, diabetes or high cholesterol
  • Weight gain that has not responded to lifestyle changes
  • Insulin resistance or prediabetes
Woman preparing a high-protein meal with vegetables as part of a medical weight loss plan

With a physician

Why medical supervision matters

GLP-1 weight loss medications are generally prescribed for adults with a BMI of 30 or higher, or 27 or higher with a weight-related condition such as high blood pressure, type 2 diabetes or high cholesterol. We confirm eligibility with a medical evaluation and labs.

We prescribe and monitor GLP-1 weight loss medication for patients from Kingwood, The Woodlands, Porter, Humble and across the Lake Houston area at our New Caney office. Your first visit includes a full evaluation and labs.

Safety first. GLP-1 medications are not right for everyone. They should not be used by people with a personal or family history of medullary thyroid cancer or MEN 2, or during pregnancy, and they need caution with a history of pancreatitis or gallbladder disease. Dr. Bernell reviews your history and labs before prescribing and monitors you throughout. Read more about GLP-1 side effects.

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Questions

Common questions

GLP-1 is the hormone. Semaglutide is a medication that acts like GLP-1. Tirzepatide acts on GLP-1 and a second hormone, GIP.

Appetite often changes within the first weeks. Weight loss is usually gradual as the dose is increased over several months.

Generally adults with a BMI of 30 or more, or 27 or more with a weight-related condition. We confirm with an evaluation and labs.

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