Fueled by ShirleyPerformance Nutrition

Free for 14 daysNothing is charged before that.See what it costs

Performance nutrition for hybrid and endurance athletes

Your training changes every day. Your fueling should too.

Most apps tell you what you burned. This one tells you what to eat before you burn it. No food diary, nothing to weigh — your training is the only input, and most of it logs itself.

For example:315 g of carbohydrate on a rest day.562 g on a day with two sessions in it.The same 70 kg athlete, the same week — worked out by the engine behind this page.

Request early accessFree for 14 days
Shirley Plotnik, RDA Registered Dietitian who races the events she writes plans for.

Try it with your numbers

Set your weight — drag it or type it — and every figure below moves with it.

The one you open each morning. A single timeline from waking to bed — what to eat, when, and how much, built around the sessions you actually have.

562g carbs
119g protein
3,354kcal
  1. Pre-session, liquid only28 g carb
  2. Lower-body strengthFrom your watch60 min
  3. Recovery70 g carb
  4. Mid-morning meal75 g carb
  5. Midday meal75 g carb
  6. Mid-afternoon meal75 g carb
  7. Pre-session meal · second session35 g carb
  8. Threshold runFrom your coach55 min
  9. Recovery window70 g carb
  10. Dinner133 g carb
As food

Banana and a whey shake

  • 1 scoop (⅓ cup) whey protein powder

2 g carbohydrate and 25 g protein as shown. In the app every line swaps for something else, and it remembers what you keep.

Worked out for 70 kg by the same engine the app runs on, not a made-up example.

What it costs

33 cents a day — a year costs less than the shoes you will race in, and, unlike the shoes, it tells you what to eat before you put them on.

Free for 14 days

Two weeks of training, and a race morning built. Nothing is charged until the two weeks are up.

Best priceYearly$9.99per monthBilled $119.88 a year
Monthly$5.99per weekBilled $25.95 a month
  • Carbohydrate, protein, fat and energy for every day, updating with the work you actually did
  • Strava and your coach’s calendar both read automatically, before you train the session
  • Meals as food rather than grams, with your swaps saved
  • Race week and race morning, worked back from your start time
  • No food diary, nothing to weigh

Cancel any time from Settings. We will email you three days before the free two weeks end, so nothing starts charging you by surprise.

Told what to eat before the session, not what you burned after it

What you have done arrives on its own. What is coming arrives from your coach’s plan. Both become food, automatically.

  • From your watch

    Connect Strava and every session arrives the moment you upload it — duration, heart rate and energy cost. The first sync reads 60 days, so the plan knows you before you have logged anything new.

    Connect once
  • From your coach

    TrainingPeaks, Final Surge, or anything that publishes a calendar link. Paste it once and the sessions your coach has planned arrive before you do them — which is what makes fueling them in advance possible at all.

    Paste a link
  • From you

    No watch, no coach, no problem. A sport and roughly how long is enough for the day to be planned around it.

    Takes seconds

How it works

  1. 01

    Connect your training

    Strava for what you have done, your coach’s calendar for what is coming. Or log it by hand — the plan works the same either way.

  2. 02

    Plan your week

    Add what you intend to do, or copy last week in one step. Fueling a session before it happens starts with knowing it is coming.

  3. 03

    Fuel each day

    One timeline for the whole day: what to eat before each session, what to take during it, and how to recover — double days included.

What makes it different

Different every day, not an average
Carbohydrate follows the work you are actually doing. Protein and fat hold steady, so a hard day and a rest day are fueled differently — on purpose.
Learned from your own sessions
The app learns what each sport costs you from your own completed sessions, rather than relying on published averages.
Built for double days
A morning lift and an evening run are two sessions with a refuel between them, not one blurred total.
Race week, planned
Carbohydrate loading timed to your taper, and race-day guidance anchored to your start time.
A minimum it will not cross
Targets never drop below the energy your training and your long-term health need, whatever the goal setting says.
Shirley Plotnik in front of a HYROX wall

The mission

To make elite performance nutrition understandable, evidence-based, and executable — so every athlete fuels like the science says, not like the internet guesses.

I am Shirley Plotnik, a Registered Dietitian, and I race the events I write plans for. Everything in this app is the way I would plan it for an athlete sitting in front of me: the same targets, the same minimum it will never go below, the same race morning counted back from your start time.

Early access is open.

Tell us what you train for and when you race. Fourteen days free when your place opens, and nothing is charged before that.

Request early access