NewFuel. Train. Sleep. Recover.

Get fitter, mission-ready, backed by your own biology

Built for service members. Nutrient-X tracks your food, training, weight, sleep, stress and aches in one place, and sets a daily calorie target from your own body and goal. Private to you, with no commander or unit view.

Free to start · No card required · Private to you

Not a medical or fitness-for-duty assessment.

Today's report with calories, body, training and sleep
Why this matters

Readiness is won or lost in the everyday

6 hours

or less is what most service members report sleeping a night. DoD guidance is at least 7.

GAO-24-105917, 2024

65%

of medically non-deployable active-component Army soldiers were down with non-combat musculoskeletal injuries.

Military Medicine, 2020

74%

of service members regularly use dietary supplements, and some products contain prohibited or unlisted ingredients.

Review of supplement use, 2025
What you get

The basics of readiness, in one place

Fuel

Log from 7,448 USDA foods, or quick-add a ration or dining-facility meal, against a daily calorie and protein target.

Train

Log sets from 1,324 exercises and see when your training load jumps faster than your recent average.

Body

Pick your service and get your waist goal from its waist-to-height standard, then track weight and waist against it.

Sleep

See each night against the 7-hour goal, and how restorative your sleep felt.

Recover

Log aches and pain, know when something is worth getting checked, and take a weekly stress check-in.

Supplements

Check before you take it, with the DoD prohibited list and the questions to ask first.

Read the checklist

Built to use between formations

Quick to log, on the phone already in your pocket. Screens show example data.

The report screen with calories, body and training cards
Your report
The food log with a daily calorie target and logged meals
Food log
The recovery screen with training load and aches and pain
Recovery
Privacy

Yours, not your command’s

People only log honestly when they trust where it goes. So it goes nowhere but to you.

  • No commander or unit view: nothing reports to anyone
  • Sleep, stress and pain check-ins are encrypted at rest
  • Your data is never sold
  • Independent: not an official DoD or Army app
Common Questions

Frequently asked questions

Can't find your answer?

Contact usContact us
No. There is no commander or unit view, and nothing reports to anyone. What you log is private to your account.
No. Nutrient-X is independent and is not affiliated with or endorsed by the Department of Defense or any service.
No. Everything here is self-reported wellness tracking. It does not diagnose or treat anything, and it does not decide duty status. Use your medic, PT or provider for anything affecting your health or your duty.
A free account, plus your height, weight, age and goal to set a daily calorie target. No uploads, no device and no genetics test needed.
From your height and your service. The services now use waist-to-height: below 0.55, or below 0.52 in the Marine Corps. The published standards do not change it for age, sex or race, and the Army no longer uses height and weight tables.
Yes, with quick add: enter the name and the calories, plus protein if you have it. They are not in the food list yet, and every other food comes from USDA data.
Yes, there is a free tier, and you can create an account with no card.

Start with today’s calories

Create a free account, set your daily target and log your first meal. No card required.

Your weight trend, waist-to-height and workouts

Runs in your browser. Nothing to install.

  • Works on your phone, tablet and laptop
  • Your data is never sold
  • No commander or unit view
  • Not an official DoD or Army app