does tirzepatide reduce muscle mass and composition changes in people with type 2 diabetes (SURPASS-3 MRI): a post-hoc analysis of a randomised, open-label, parallel-group, phase 3 trial How Does Tirzepatide Work for

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Magnesium oxide is generally not recommended for GLP-1 users due to its relatively poor absorption and higher likelihood of causing gastrointestinal upset

Evidence snapshot: The strongest human evidence comes from a 2-year randomized controlled trial in 65 healthy older adults (Nass et al., 2008, Annals of Internal Medicine) showing sustained GH/IGF-1 increases and preserved fat-free mass, plus an earlier short-term human polysomnography study on sleep (Copinschi et al., 1997, Neuroendocrinology, PMID 9349662)

However, some researchers may want to use a nasal spray depending upon the research objective, design methodology, and nature of their test subjects