Jennifer Smith 
Scale weight shows how much total mass changed. DXA estimates how that change was divided among fat, lean soft tissue, and bone mineral, but it does not directly measure muscle or physical function.
Semaglutide is a modified peptide medicine modeled on the GLP-1 hormone. Its engineered structure helps it last longer than native GLP-1, but peptide classification alone does not explain its clinical effects or safety.
A practical guide to translating weight-loss trial headlines into meaningful evidence by checking the population, comparator, estimand, missing data, safety results, and uncertainty.
BNP is a heart-derived hormone that helps regulate fluid and blood-vessel function. It is also an important biomarker, but no single result diagnoses heart failure.
Ghrelin and GLP-1 influence eating through different, overlapping pathways. Learn what each hormone does, how they change around meals, and why neither controls appetite alone.
“Reta peptide” usually refers to retatrutide, an investigational peptide that activates GIP, GLP-1, and glucagon receptors. Here is what that means—and what the evidence does not yet establish.