Home / Guides / ultra processed foods

Nutrition context

Ultra-processed foods: what they are and how to test your own habits.

daygauge does not track food. You can log a related habit in Quick Log and compare it with your sleep, movement and heart readings.

Download on the App Store See score anatomy Read evidence model
The question

Start with what your own data can show.

Many people ask about ultra-processed foods because they connect them with energy, cravings and long-term health.

daygauge is not about calorie policing. If you want to test a change, you can log it and see what shifted on those days.

Quick answer

daygauge does not log food. In Quick Log you can log a post-meal walk or a fizzy drink, or add a custom habit, and see it next to your sleep, movement and heart readings.

Questions answered

What this guide covers.

  • What are ultra-processed foods?
  • Can food habits explain energy?
  • Does daygauge track ultra-processed food?
  • How can you look at food habits without guilt?
  • Can food habits connect to sleep?
In daygauge

How the app handles this.

Signal
In Quick Log you can log a post-meal walk or a fizzy drink, or add a custom habit, and see it next to your sleep, movement and heart readings.daygauge does not identify ultra-processed foods and does not measure what you eat. It does not diagnose inflammation, metabolic disease or food addiction.
Confidence
Missing readings lower confidence instead of creating false certainty.When a reading is not available, daygauge says so rather than filling the gap.
Weekly Review
Weekly Review shows what changed, what held and what to try next.Your first Weekly Review is free. Later reviews are part of Pro.
Illustrative example

What this can look like in the app.

Custom habit: no fizzy drinks after lunch, logged 3 times; you fell asleep 22 minutes earlier on those days.

Example
Confidence

A pattern is only called proven after it repeats on your own paired days. Missing readings lower confidence.

Next move

Try one small change, log it in Quick Log, then compare your next readings.

Example 1

Late meal habit logged twice this week, and sleep started later on both days.

Example 2

Habits you log are optional and stay on your iPhone.

Research

Further reading.

These studies describe groups of people. They help explain the topic, but they cannot tell you what will happen to you.

Research context only. daygauge does not diagnose, treat, prevent or predict disease risk. Personal medical concerns belong with a qualified clinician.

Limits

What daygauge does not do.

  • It does not diagnose, treat or prevent disease, or predict your risk of it.
  • It does not claim one habit caused a result. It shows the pattern, how confident it is and what else changed.
Read next

Related guides.

A post-meal walk is an easy experiment to run on yourselfGlucose stability: what CGM shows and what daygauge does notA habit tracker can show what your routines do to your readings
On the App Store

Want to see a food habit next to your own sleep and movement?

daygauge is free to download. Pro is £8.99 a month or £49.99 a year.

Download on the App Store

Personal analytics, not medical advice