gutr.
Private beta
Track meals, workouts, and weight while working toward maintenance or gradual weight loss. Your activity helps inform your daily nutrition estimates.
Request beta access Research and referencesExamples from a demo account.
Describe a meal, take a photo, scan a barcode, or use a saved food. Check the estimates and adjust the portions before logging.
Estimated nutrition
FOODS IN THIS MEAL
Greek yogurt
& blueberries1 serving · assumed portion
Granola1 serving · assumed portion
200 kcalLogged workouts and everyday activity contribute to your estimated allowance. Calories, protein, and carbohydrates stay visible together.
789/3,260 kcalCalories logged · daily allowance
2 workouts · 135 minActivity for today
See individual weigh-ins alongside a seven-day average. Review the direction over weeks rather than reacting to one reading.
Seven-day average190.6 lb↓ 1.6 lb vs last week
Gutr uses published equations and activity references to estimate your needs. The in-app guide lists the sources, calculations, and product assumptions.
Individual needs vary; the figures remain estimates.
Mifflin et al., 1990
2024 edition
Thomas, Erdman & Burke, 2016
The references above inform its energy equation, activity estimates, and nutrition guidance. The in-app guide documents how these are used. The combined Gutr method is not itself clinically validated.
Active adults working toward maintenance or gradual weight loss. Gutr began with endurance training in mind; running, cycling, lifting, CrossFit, Pilates, and yoga are some examples of activities you can log.
Gutr supports that goal with gradual weight targets, a daily protein reference, and activity-aware nutrition estimates. It doesn’t measure body fat or muscle, or guarantee changes in either.
Gutr uses logged workouts to inform nutrition estimates; it doesn’t create exercise programs. Dedicated workout-fueling guidance was developed around endurance activity. Support for a broader range of activities is still being refined during beta.
Personal Garmin account connections aren’t available to beta testers yet. Plan to enter your workouts and weight manually.
The beta is closed source. The plan is to release Gutr as open source for self-hosting, and offer personally managed accounts for a small monthly fee. The release date, license, and pricing are still to be decided.
Gutr runs in your phone’s browser. You can add it to your home screen as a mobile web app. An internet connection is needed to save changes and use AI features.
Beta testers get access to a small Discord server for feedback and discussion. Email [email protected] for private account questions.
Gutr stores the profile and nutrition records you enter. AI features send the content needed for the request to the configured AI provider. The app includes data export and account deletion. You can ask about the current provider and data handling at [email protected] before joining.
I built Gutr for myself. I wanted a lightweight way to log my daily macros without making food tracking another project.
As an endurance athlete, I wanted nutrition targets grounded in research, with my training taken into account as I worked toward losing body fat.
A few training partners asked to try it. Now I’m opening a small beta to see whether it’s useful to other active people, too.
— Dave
Tell me where Gutr fits into your training. Beta accounts are created by invitation, and spots go to people who will actively report back.
Prefer email? [email protected]
Thanks for your interest in Gutr. Beta accounts are created by invitation.