Triggers the full exercise-adapted gene program: strongly upregulates mitochondrial biogenesis, fatty acid oxidation, oxidative phosphorylation, angiogenesis, and type I (slow-twitch, fatigue-resistant) muscle fiber genes, almost identical to the transcriptional changes seen after endurance training
Human studies show GLP-1s reduce systemic inflammation, improve insulin sensitivity, and normalize fasting and post-meal glucoseeven before major weight loss occurs
However, kidney disease can affect drug metabolism and elimination, and tirzepatide is primarily eliminated via proteolytic degradation rather than renal clearance, which means dose adjustments for kidney function are generally not needed
Step 2: Clinician Review A licensed provider reviews your responses to determine if treatment is appropriate
It has been FDA-approved for weight loss since 1959, making it one of the longest-standing obesity medications available
However, they can be toxic to renal cells and affect renal blood flow, both of which lead to kidney injury (Michael 2014)
