For people on GLP-1 medication

Your dose, your protein,
and how you actually felt.

Most trackers were built for people counting calories. If you're on semaglutide or tirzepatide, the hard part isn't eating less — it's eating enough of the right things on the days food stops sounding good, and knowing which week the side effects really did get better.

Free tier covers all of this. No ads, no streaks, no weigh-in nagging.

Doses, alongside the food

Log semaglutide, tirzepatide, naltrexone-bupropion, phentermine and more, with your own schedule. The Today screen shows what's next and where you are in the week, so a low-appetite Tuesday is something you can see rather than something you explain away.

A protein floor that survives a small appetite

A 2025 joint advisory from four professional bodies — the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association and The Obesity Society — puts protein at 1.2–1.6 g per kg of body weight per day during active weight reduction, because a meaningful share of what comes off is otherwise lean mass. Macroline gives you that number as a floor and shows how close you got, without turning a 600-calorie day into a failure.

The body log nobody else ships

Bathroom breaks, how you feel, supplements and your cycle — one tap each, sitting next to the meals. Switch on only the sections you want. Nothing is scored, and nothing here produces a grade for your week. How it works →

Numbers that show their source

Every food says where it came from: USDA, the manufacturer, the restaurant, Open Food Facts, or an estimate clearly marked as one. When you're eating a third of what you used to, each entry matters more — and a crowd-sourced guess wearing a confident badge matters more too.

What this is not

Macroline is a log, not a clinician. It will never tell you to change your dose, suggest a titration schedule, or interpret a symptom for you. It records what you tell it and shows you the pattern, so the conversation with the person who actually prescribes your medication starts from something real instead of from memory.

We're not dietitians either, and nothing here is medical advice for your situation. Where we cite a number, we link to where it came from so you can check it.

Start with one meal

Type what you ate, scan a barcode, or ask Claude to log it. Free to download.