This means your body burns more calories at rest and breaks down stored fat more efficiently
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Semaglutide vs Tirezepatide for Weight Loss in Adults With Overweight or Obesity
When GLP-1 binds to its receptor, it amplifies the insulin signaling pathway, causing increased phosphorylation of insulin receptor substrates and activating the PI3K/Akt pathway, which ultimately results in enhanced glucose uptake, utilization within the liver, and reduced production of glucose (gluconeogenesis)
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Clinical trials of GLP-1 medications have shown that while weight loss occurs, it includes both fat mass and some lean mass reduction, though the impact on respiratory muscle function specifically has not been well established