--- title: 'Muscle and weight loss, ten questions answered' description: 'Ten sourced answers to what people ask about keeping muscle while losing weight on a GLP-1: the lean share of weight lost, protein targets, strength training, scans, and coming off.' canonical: https://proforta.com/learn/ generated: 2026-10-08 --- Muscle and weight loss, ten questions answered Guides · muscle and weight loss # Muscle and weight loss, ten questions answered ProForta helps you maintain muscle while you lose the weight, measured over twelve weeks and published; the [60-second self-check](https://proforta.com/check?utm_source=proforta&utm_campaign=learn-hub) is the short way in. Ten pages, two to four minutes each Ten questions people actually type into a search box when they are losing weight and wondering how much of it is muscle. Each one answers in the first paragraph, names its sources, and ends with something you can check about yourself this week. These are wellness pages. They carry no guidance about any medicine and none about your care, and your prescriber stays the decision-maker on both. [How much of GLP-1 weight loss is muscle?The share of the weight that is not fat, in the trials that actually measured it.](https://proforta.com/learn/how-much-glp1-weight-loss-is-muscle) [How much protein should you eat on a GLP-1?The actual number, in grams, and the gap between it and what most people eat.](https://proforta.com/learn/how-much-protein-on-a-glp1) [How do you get enough protein when you have no appetite?The target holds when your appetite does not. What changes is how the protein arrives.](https://proforta.com/learn/protein-when-you-have-no-appetite) [How much strength training do you need on a GLP-1?How often, what counts as resistance work, and why cardio does not substitute.](https://proforta.com/learn/strength-training-on-a-glp1) [What are the signs you are losing muscle, not fat?What actually signals lean-mass loss, and what to write down so you would notice.](https://proforta.com/learn/signs-you-are-losing-muscle) [Losing weight after fifty: how much muscle is at stake?Why the same lean share matters more when age is already taking half a percent a year.](https://proforta.com/learn/keeping-muscle-after-fifty) [Should you get a body-composition scan before you start?Why the first scan is worth more than the second, and what to ask the centre for.](https://proforta.com/learn/body-composition-scan-before-you-start) [Are smart scales accurate enough to track muscle?What a home body-fat reading can and cannot tell you, and how to make its trend usable.](https://proforta.com/learn/tracking-body-composition-at-home) [What happens to your muscle when you come off a GLP-1?What the follow-up data shows about regain, and why the habits you keep decide the shape of it.](https://proforta.com/learn/keeping-muscle-when-you-stop) [Does losing muscle slow your metabolism?The measured split between tissue loss and adaptation, and which half you can do anything about.](https://proforta.com/learn/does-losing-muscle-slow-your-metabolism) ## Start somewhere smaller If you would rather have a number than a reading list, the [60-second self-check](https://proforta.com/check?utm_source=proforta&utm_campaign=learn-hub) takes a handful of answers and shows you what published trial averages suggest about the lean-mass share of your weight loss and the daily protein target the 2025 joint advisory gives, in grams. It runs entirely in your browser and sends nothing anywhere. ## Practical guides - [Getting a DEXA scan](https://proforta.com/dexa), a United States guide to whole-body composition scans, what to ask for and what it costs. - [The newsletter](https://proforta.substack.com), longer writing for people on the GLP-1 journey. Ozempic, Wegovy, Mounjaro and Zepbound are trademarks of their respective owners. They appear here only to name what people search for. ProForta is not affiliated with, endorsed by, or sponsored by any of them. ## Watch it instead of guessing The ProForta Challenge is twelve weeks with your muscle actually watched while you work on the weight, however you are going about it. It is free, it is a small beta on one private node, and the only person you are ever compared with is you at the start of it. [Join the ProForta Challenge](https://app.proforta.com/join?utm_source=proforta&utm_campaign=learn-hub) [Take the 60-second self-check](https://proforta.com/check?utm_source=proforta&utm_campaign=learn-hub) The self-check runs entirely in your browser and sends nothing anywhere. If you would rather look around first, [open the demo](https://proforta.com/demo), nothing to install and no account to create. [ProFortaPowered by LifeCare.ID®](https://proforta.com/) © 2026 Enbarca Inc., doing business as HCVC.net. All rights reserved.