◆ Nutrition for female athletes
Strong runs on enough.
Idunia tracks whether you are eating enough for the training you do. Energy in, training out, honestly measured.
Get it on Google Play01 The number that matters
What is left after training.
Energy availability is the fuel your body keeps once training is paid for. Recovery, hormones, bones, iron: all of it runs on what is left over. Most apps count what you eat. Idunia counts what remains.
When the number drifts low for too long, that pattern is associated with under-fueling, and Idunia says so early and plainly. Not as a verdict. As a heads-up that your body needs more.
The math, in the open
EA=( energy in−training out ) ÷fat‑free mass measured in kcal per kilogram of fat‑free mass, per day
A low day: your body needs more.
02 The signs
Your body is asking for more.
Heavy legs. Flat lifts. Short sleep. A cycle that goes quiet. None of these are failures, and none of them mean push harder. They are signals. Idunia flags the pattern early, before a rough week becomes a rough season.
03 The fix
Fueling up is training too.
The strongest thing an athlete can do is fund the work. Log your day in plain words, the way you would text a friend. Idunia does the math: energy, protein, iron, and 30+ nutrients, checked against what your training actually costs.
04 Made for her physiology
Built for the female athlete
Not a general tracker with a pink theme. The math underneath is tuned to the athlete it serves.
Iron, watched closely
The mineral female athletes run short on most often. Idunia tracks your intake against your needs every day, and needs rise around menstruation.
Cycle as context
Context we track, not a diet we prescribe. The science that holds, like iron needs rising around menstruation, is surfaced plainly. No phase diets. No rules invented for you.
30+ nutrients
Iron, calcium, B12, folate, zinc and more than two dozen others, computed from a full food database, not a guess. Macros are table stakes. Depth is the point.
Training load counted
Log a session in seconds. Your energy needs move with your training, so your targets move too. Bigger training day, higher daily aim. Simple.
◆ Where we stand
This app will never tell you to eat less.
It exists to make sure you eat enough.
Adequacy, not restriction
Under-fueling is framed as your body needing more. Fixing it is an act of strength, never an apology. There are no red numbers anywhere in the app.
Context, not prescriptions
We surface what the science actually supports and skip what it does not. Your cycle informs the picture; it never becomes a meal plan.
Private by design
Your health data is never sold and never touches an ad network. It is protected row by row and shared only with the processors that run the app, never for advertising.
Eat enough. Train strong.
Named for Iðunn, whose golden apples kept the gods strong. On Google Play now.
Get it on Google Play