How it Works
How Fettle works in Practice
Fettle turns nutrition science into a practical system that adapts week by week - helping you eat better, stay consistent, and make progress without overthinking or obsessing over every meal.
Instead of rigid plans or constant manual tracking, Fettle guides decisions upfront and adjusts as your body, habits, and goals change over time.
Guidance First, Tracking Second
A different way to approach nutrition.
Most nutrition apps ask you to log everything first — then leave the hard decisions to you.
Fettle works the other way around.
We help you understand how much to eat, what fits your targets, and how to plan for real life, so tracking becomes a tool for refinement — not pressure, guilt, or guesswork.
This is nutrition designed to guide decisions upfront, adapt over time, and support progress without punishment.
How much to eat
Fettle calculates your calorie and macro targets using evidence-based formulas — then updates them as your body, activity, and goals change.
You start with clarity, not guesswork.
What fits your target
Meals are matched to your targets — not the other way around.
Fettle helps you choose foods and portions that fit your goals and preferences, without rigid rules or food anxiety.
How to plan for real life
From meal ideas to shopping lists, Fettle helps you plan in a way that works outside the app.
So staying on track feels practical, flexible, and sustainable — even on busy weeks.
Fettle's future
What's coming next
Fettle is actively evolving based on user feedback.
Planned features include:
Photo based meal recognition
Wearable and health
Deeper progress insights and coaching
Eating-out and restaurant recommendations
Why Fettle
