The Tiro blog

The GLP-1 journey, explained without the hype.

Protein, dosing, side effects, plateaus, and keeping your muscle — grounded in the trials and the labels, written for real people on the medication.

All Coming Off & Maintenance Dosing & Titration Drug Comparisons Food Noise Protein & Nutrition Side Effects Trackers & Apps Weight & Plateaus

Drug Comparisons

The Muscle Question Nobody Asks Before Choosing Zepbound or Wegovy

Does Zepbound or Wegovy cost more muscle? What the trials show, your protein floor (1.2–1.6 g/kg), and how to measure lean mass without the scale.

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Drug Comparisons

Mounjaro vs Ozempic and Muscle Loss: Which Really Protects Your Lean Mass — and How to See It Happening

Does Mounjaro cost more muscle than Ozempic? See the SURMOUNT & STEP lean-mass data, the protein floor that protects it, and how to track it. Not medical advice.

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