As GLP-1 drugs get heavily marketed for weight loss, we know that when people stop taking the drugs they experience rapid weight regain. We also know that, while the claim is that if people stay on the drugs forever they’ll maintain the weight loss, there isn’t any research proving that and that in the longest study of these drugs for weight loss (4 years) they lost 89.5% of the sample.

There is another aspect that I think is not being discussed nearly enough and that is the subject of how much of the weight that is lost is coming from what is known as lean body mass.

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