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Normally, if an overweight person loses a substantial amount of weight, we expect to see improvements in their aerobic fitness (relative to body mass) and cardiovascular health

I assume the rapid weight loss was glycogen ("water weight"), since I still don't eat very much but weight loss has dropped to a less-concerning 1.5 lbs per week

Donald Vollmer of Body Works in Franklin, TN a clinic that offers GLP-1 therapy, peptide therapy, and hormone optimization under one roof notes that patients who combine medication with structured diet and exercise consistently achieve better body composition outcomes than those who rely on medication alone

Reddit backs this up

They may lose some weight, then regain it, then blame themselves for not having enough discipline

Last Updated July 2026 Author: Allison Jones, F-NP Medically reviewed by Dr