What We Got Wrong About GLP-1s (And What's Right) | Dr. Tyna Moore

August 12, 2026

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5 min read

What We Got Wrong About GLP-1s (And What's Right)

Dr. Tyna Moore returns to The Dr. Hyman Show roughly two years after her first appearance, and she has not budged from her core position—but she has refined it considerably. The original conversation around microdosing GLP-1s generated enormous attention, much of it distorted. "That got lost in translation because you know how people are," she says. "They hear what they want to hear." Two years later, she is "more firmly planted" in her stance that keeping doses as low as possible is necessary, and that these drugs must be part of a comprehensive plan—never monotherapy.

The Three Cohorts and the Microdosing Confusion

Moore distinguishes three groups of people who might use GLP-1s, and the distinction matters because the same dose does not serve all of them. The first group is the population these drugs were originally designed for: people with significant obesity and type 2 diabetes, whose systems are already compromised. Throwing high doses at them without lifestyle support, she says, is "malpractice and completely unethical."

The second group is the middle cohort—people with 30 to 50 pounds to lose, often postpartum or with metabolic dysfunction that has accumulated over time. For them, Moore says, "you really do need more standardized dosing or close to it" to move the needle on weight.

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What you'll learn

1 (00:00) **Introduction: A Changed Mind on GLP-1s** - Dr. Moore states that her opinion on GLP-1s has evolved from skepticism to seeing them as a tool to improve metabolic health, with benefits extending far beyond weight loss.
2 (05:29) **The Lasting Framework: Lifestyle First, Low Dose, Comprehensive Plan** - The core message from their previous conversation is reinforced: the dose must be as low as possible, and these drugs are only one tool in a comprehensive plan that prioritizes lifestyle.
3 (07:52) **How GLP-1s Work: Standard Doses vs. Microdoses** - Dr. Moore explains the endogenous nature of GLP-1s and contrasts the mechanism of high pharmaceutical doses with the philosophy behind much lower, individualized doses.
4 (14:47) **The Muscle Loss Myth Corrected** - Dr. Moore clarifies the sensationalized claim of 40% muscle loss, explaining it was based on a misinterpretation of "lean mass" on DEXA scans.
5 (19:09) **Beyond Weight Loss: The Systemic Benefits** - The conversation highlights that improving metabolic health with GLP-1s leads to improvements in a wide range of conditions, independent of weight loss.
6 (28:24) **What Are GLP-1s? A Primer on the Peptides** - Dr. Moore provides a clear, foundational explanation of what GLP-1 peptides are and the differences between the major pharmaceutical versions.
7 (33:55) **The Weight Rebound Problem and the "Lifer" Question** - The discussion addresses the high rate of weight regain after stopping the drugs and the uncertainty about long-term use.

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Show Notes

GLP-1 medications have changed how we treat obesity and metabolic disease. But as their use has exploded, so have questions about side effects, muscle loss, long-term use, and whether patients are receiving the support they need to use them safely.

In this episode, I reconnect with metabolic health and regenerative medicine expert Dr. Tyna Moore to revisit our conversation from two years ago and examine what we’ve learned since.

We discuss:

How to tell when your GLP-1 dose may be too high
What you can do to protect your muscle and bone during weight loss
Which metabolic and nutritional markers should you check before and during treatment
Why weight can sometimes return after stopping a GLP-1
What emerging research suggests about GLP-1s beyond weight loss

GLP-1s can be life-changing, but a lower number on the scale isn’t the same as better health. Ultimately, how these medications are used—from dosing and monitoring to nutrition and strength training—matters just as much as whether they’re used at all.

Additional resources:

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Listen to Dr. Tyna Moore’s previous appearance on The Dr. Hyman Show

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