KeepEatClean: How the app pairs meal logs with Apple Health and WHOOP data

# What KeepEatClean does

# How the pairing works

Users log meals (text, photo, and editable entries are supported) and connect either Apple Health or WHOOP. The app builds paired days: calendar days with both a usable meal record and usable wearable measurements. Available measures depend on which source you connect, what device collected the data, and the permissions you grant.

# The learning requirement: 12 paired days

A central design choice is a minimum sample count. KeepEatClean needs at least 12 usable paired food‑and‑health days before it will report a finding for a specific comparison. This is a floor, not a guarantee. After reaching 12 paired days the app still runs further evidence checks to decide whether a supported association exists or whether the comparison lacks a clear pattern.

# What a reported association means (and doesn't mean)

When the app surfaces a supported association it describes a relationship found in that person's historical records. It does not demonstrate that a meal or timing caused a sleep or recovery outcome, and it does not promise that changing the behaviour will improve those measures. The app is a tool for identifying habits to test or monitor, not for establishing causality.

# Practical steps to use it

• Connect Apple Health or WHOOP and confirm the permissions for the measures you want compared. Understand that available metrics differ by source.
• Log meals consistently, using photo logging and editing entries to correct errors. Consistency increases the number of usable paired days.
• Watch for status messages in the app: it will indicate insufficient information, enough history without a clear pattern, or a supported association when criteria are met.
• Treat findings as hypotheses to explore further rather than definitive proof.

# Availability and pricing

KeepEatClean is available on the App Store. The listing shows the current free tier and an optional Pro subscription for features not detailed in this summary.

# How this compares with similar apps

The app is part of a small group of tools that turn on‑device health data into contextual comparisons rather than single‑value scores. It sits alongside other iPhone apps that use Apple Health data to offer per‑user insights into recovery, stress, and training load, but its distinguishing feature is pairing explicit meal logs with wearable history.

# Quick answers

• How many paired days are needed before a finding appears? At least 12 usable paired food‑and‑health days plus further evidence checks.

• Can a pattern prove that a meal caused better sleep? No. The app identifies associations in your records but does not establish cause and effect.