Açaí/For endurance athletes
Runners, cyclists, triathletes

Nutrition tracking for the long game

Most calorie apps were built for the gym. Endurance athletes burn through sodium, potassium, iron, magnesium, and B12 on different curves, and they usually need more energy than any generic TDEE formula predicts. Açaí tracks the nutrients that actually matter during a build cycle, and it does it from a photo.

245
Nutrients including electrolytes
Sodium, potassium, magnesium, calcium
Live
BMR from Apple Health activity
No more static TDEE guessing
Weekly
Iron + B12 deficiency flags
Caught before performance drops
By discipline

What different endurance loads actually demand

Marathon training

Key nutrients
Iron, B12, sodium, carbohydrate timing
Why Açaí works here
Iron depletion in female runners shows up weeks before energy tanks. Açaí flags it at the weekly level, not after a DNF.

Cycling / gravel / road

Key nutrients
Sodium, potassium, magnesium, total energy
Why Açaí works here
Long rides are a hydration and electrolyte problem first, a calorie problem second. Açaí models both from real plate data, not generic formulas.

Triathlon (Olympic / 70.3 / IM)

Key nutrients
Carb availability, sodium, iron, vitamin D
Why Açaí works here
Multi-sport loads stack. Açaí's projection view shows your deficit in real time across bricks and long days.

Ultra running / trail

Key nutrients
Sodium, potassium, branched-chain amino acids, fat oxidation
Why Açaí works here
Nobody manually logs food during a 100. Account for pre-race and post-race nutrition with photo-fast entry.

Open water / pool swim

Key nutrients
Iodine, vitamin D, calcium, protein turnover
Why Açaí works here
Chlorine and cold water suppress hunger. You miss meals without noticing. Açaí's projection catches the day drifting under target.
The iron gap

The deficiency that ends seasons

Roughly a quarter of female endurance athletes develop iron deficiency during a training block. Ferritin drops, VO2 max falls, workouts that were easy in week three become miserable in week eight. The athlete thinks they are overtrained. The blood panel says they are iron deficient.

Açaí models iron intake across every meal for the prior seven days and flags downward trends before the blood draw confirms it. It does the same for B12, vitamin D, magnesium, and omega-3. The point isn’t diagnosis. The point is to surface the direction of travel early enough to adjust food, not after a DNF.

A generic macro tracker can’t do this because it doesn’t track the nutrients involved. This is exactly the use case that justifies 245 fields instead of 15.

Sync
Apple Health integration →
Test
Deficiency checker →
Related
Açaí for runners →

Fuel the season, not just the workout.

Açaí gives endurance athletes the full 245 nutrient picture plus live activity integration.

Download on App StoreGet it on Google Play