Understand what happens after you eat.

FatFlow helps you see how meal timing, insulin and stored energy are connected.

See how meal timing affects fat burning.

Get it on Google Play For iPhone, use the Web App Coming soon on the App Store
FatFlow dashboard showing 14 hours 49 minutes in fat-burning mode

What happens after you eat

Your body moves through three distinct phases after a meal. FatFlow shows you where you are right now.

Processing Food

Right after eating, your body is digesting and using energy from the meal you just had.

Shifting Fuel

As digestion winds down, your body begins transitioning toward using stored energy.

Fat Burning

Several hours after your last meal, your body draws more heavily on stored fat for fuel.

How FatFlow works

FatFlow dashboard: fat-burning timer shows 14 hours 49 minutes in fat-burning mode
See your current fat-burning status at a glance
FatFlow timeline view showing daily fat-burning bars across the week
Track patterns across today and the week
FatFlow log screen with quick one-tap meal and drink logging
Log meals, drinks, and activity in seconds
FatFlow dashboard in food-processing state showing 1 hour 3 minutes until fat burning
Understand how long until fat burning begins
FatFlow settings showing daily goal, reminders, and recurring entries
Set goals, reminders, and recurring entries

Your data stays on your device

Your meal, drink, activity and history data stays on your device. FatFlow uses limited anonymous analytics to understand general app usage and improve the experience. No advertising or cross-app tracking.

Education, not instruction

Get FatFlow

Start understanding what may happen after you eat.

Get it on Google Play For iPhone, use the Web App Coming soon on the App Store