glp-1 in brain A schematic representation of the potential role of Treatment with GLP-1 receptor agonists

Last reviewed: July 14, 2026 Last updated: July 14, 2026 Written by: Jay Hastings, CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations

Individuals uncomfortable with large capsules

Initial signs of response typically appear by week 3-4, with meaningful results developing through weeks 5-8

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Collecting urine over a 24-hour period can give deeper insights into GFR and creatinine clearance, but this method could be burdensome and may yield inaccurate results if not collected properly