When taken orally, it primarily interacts with the gut lining, which may be helpful in models of: Ulcer healing ( Stark et al., 2017 ) Inflammatory bowel conditions ( Sikiric et al., 2015 ) Intestinal barrier protection ( Stark et al., 2017 ) However, oral peptides are subject to breakdown by stomach acid and digestive enzymes, which can limit their absorption into the bloodstream ( Sikiric et al., 2015 )
In clinical trials, tirzepatide demonstrated reductions in hemoglobin A1c of up to 2.5% and weight loss of approximately 15-21% of body weight at higher doses after 72 weeks of treatment, with results varying by dose and patient population
And the researchers who published it aren't writing editorials saying "maybe worry about this someday" - they're calling for DXA baselines, resistance training, and protein optimization to become standard of care from day one of GLP-1 therapy
Incorporating exercise and physical activity is another cornerstone of weight management with Tirzepatide
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