Nutrition
Nutrition Logging
Track calories, protein, carbs, fat, and water with multiple fast logging methods designed to take seconds.
Daily nutrition view
The Nutrition tab shows macro rings for calories, protein, carbs, and fat toward today's goal. Meals organize into breakfast, lunch, dinner, and snacks. A date picker lets you log or review any day, not just today.
Water tracking includes quick-add bottles or custom amounts. Hydration goals adjust with body weight and activity.
Logging methods
Search queries a merged database across USDA, Open Food Facts, and FatSecret. Barcode scanning is free for all users — scan, confirm, and log. Photo-to-macros and text-to-macros use AI to estimate meals and require Premium or credits.
Saved foods and the food grid enable one-tap re-logging favorites. Manual entry supports custom foods with full macro control.
Apple Health integration
Optionally write meals and water to HealthKit. Reconciliation modes handle cases where other apps also write nutrition data — Hammr primary, Apple Health primary, or combine split logging.
A compare banner appears when Hammr and Health totals differ so you can reconcile intentionally.
Hammr is available on iOS with Apple Watch support.
Hammr Fitness is for wellness and fitness purposes only. It is not medical advice. Consult a physician before starting any exercise or nutrition program. If you have a medical emergency, call emergency services.