Sudden weight loss can rapidly reduce facial fat, leading to changes such as skin shrinkage, sagging, and decreased elasticity
however, this effect was not reversed with any treatment
Last reviewed: 05 Feb 2026 Sources Polyneuropathy After Rapid and Massive Weight Loss, Journal of Clinical Neurology [accessed 18 December 2025] Obesity Treatment, NHS England [accessed 18 December 2025] Effects of weight loss on foot structure and function in obese adults: A pilot randomized controlled trial, Gait & Posture [accessed 18 December 2025] Neurological complications associated with rapid weight loss and nutritional deficiencies following GLP-1 agonist use: a case report, Springer Nature [accessed 18 December 2025] Related weight loss treatments Further reading on weight loss Maintenance hub Liraglutide BMI verification Ozempic for weight loss Semaglutide for weight loss Switching from Saxenda to Mounjaro Is coffee good for weight loss
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The FDA had logged more than 455 adverse event reports tied to compounded semaglutide and more than 320 tied to compounded tirzepatide as of early 2025