# Plain guides, no sales pitch. *Guides · https://undiet.app/guides* Short reads on the questions people search before they pick a diet. Every guide links to the catalog pages it mentions. - [Keto vs Mediterranean: which to track](https://undiet.app/undiet/guides/keto-vs-mediterranean.md): Keto and Mediterranean are the two patterns people compare most. What each one asks of a day, who tends to find each easier, and how to keep both on one timeline if you try one after the other. - [Intermittent fasting windows explained](https://undiet.app/undiet/guides/intermittent-fasting-windows.md): What the numbers in 14:10, 16:8, 18:6, 20:4, 5:2 and OMAD mean, what a day looks like on each, how the catalog rates their effort, and how to track a fasting period next to any other diet. - [GLP-1 maintenance: tracking after the last dose](https://undiet.app/undiet/guides/glp1-maintenance-tracking.md): What changes when a GLP-1 therapy ends, why the months after deserve the same record as the therapy, and how to keep doses, appetite, feeling and weight on one timeline through titration, therapy and maintenance. - [How to photograph progress privately](https://undiet.app/undiet/guides/progress-photos-privately.md): A short guide to taking progress photos that stay useful and stay private: the same pose and light, a ghost overlay to compare two dates, and a vault that keeps every photo on the phone and out of the camera roll. - [Effort vs calories, a simpler way](https://undiet.app/undiet/guides/effort-vs-calories.md): Why Undiet logs effort and feeling instead of calories: two taps a day, a ten step comb, a streak that counts days not kilograms, and a weight trend read next to how the days actually felt. - [Switching diets without losing your history](https://undiet.app/undiet/guides/switching-diets.md): What usually happens to your data when you change diets, and how to keep every attempt as a period on one timeline so the question of what works for you has an answer. - [Where the numbers come from](https://undiet.app/undiet/guides/where-the-numbers-come-from.md): The diet switch chart on the home page draws the mean weight change that published studies reported for each diet. This page lists every study used, the figure as the paper reports it, how it was scaled to the chart, and what an average does and does not say about one person. - [GLP-1 weight loss timeline from the studies](https://undiet.app/undiet/guides/glp1-weight-loss-timeline.md): What the two largest trials of weekly semaglutide and tirzepatide actually reported: how many people, how long, the dose escalation, the average loss at the end, how many reached 5, 10, 15 or 20 percent, and what a week by week timeline can and cannot be read from them. - [After the last dose: what studies show](https://undiet.app/undiet/guides/after-the-last-dose.md): The one large trial that followed people for a year after stopping semaglutide, what it reported about regain, what that does and does not mean for you, and how tracking, private photos and a community keep the record going when the therapy ends. - [Progress photos on GLP-1, privately](https://undiet.app/undiet/guides/progress-photos-on-glp1.md): Why photos matter more when the change is fast, how to stand and light them so two dates line up, how often to take one, why in Undiet they never leave the phone, and how the ghost compare puts one date over another. Find my diet in five taps: https://undiet.app/find-my-diet. Free on iPhone (https://apps.apple.com/app/id1490849895) and Android (https://play.google.com/store/apps/details?id=be.krnic.undiet). --- Any diet. No calorie counting. Your weight, your effort and every diet you try, on one timeline. Undiet is a tracking companion, not a medical service. For people aged 16 and over. Made by Krnic CommV, Gent, Belgium. Contact: undiet@krnic.be. Privacy: https://undiet.app/privacy · Terms: https://undiet.app/terms · Delete your account: https://undiet.app/delete-account · Support: https://undiet.app/support