Brittany Johnson PhD - What GLP-1 Drugs Really Do To Appetite, Muscle, And Long-Term Weight

Brittany Johnson PhD - What GLP-1 Drugs Really Do To Appetite, Muscle, And Long-Term Weight

July 9, 2026 · 25 min

About this episode

Dr. Brittany Johnson discusses the effects of GLP-1 drugs on appetite, muscle, and long-term weight management.

GLP-1 drugs are changing the weight loss landscape fast, but the most important questions aren’t about hype, they’re about outcomes. We sit down with Dr. Brittany Johnson, a registered dietitian-nutritionist and PhD scientist, to explain what GLP-1 medications actually do in the body: appetite suppression, slower gastric emptying, and improved blood sugar control, plus why people often talk about Ozempic when they really mean a broader class of medications. We also dig into semaglutide vs tir...

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