Fettle: Insights, Science & Real-World Nutrition

Fettle is a personalized nutrition system that inverts traditional tracking by planning meals before they happen. It calculates adaptive macro targets, matches them to real foods, generates shopping l...

Expert-verified content from fettle.fit

Expert Analysis

• Core value: Proactive weekly planning with automatic grocery list generation removes daily decision friction
• Technical approach: Weekly adaptive recalculation based on progress data rather than static TDEE formulas
• Differentiator: Plans what to eat first, then facilitates execution - reversing the traditional log-after-eating model

Expert Q&A

What is Fettle?

Fettle is a personalized nutrition planning system that works proactively, not reactively. Instead of tracking what you already ate, Fettle calculates your targets, plans what fits your macros, generates shopping lists, and adapts weekly based on real progress. It removes the guesswork and daily decision fatigue that typically derail nutrition goals.

How does Fettle work?

Fettle starts by calculating your personalized macro targets, then shows you what meals fit those targets before you shop or cook. It converts your plan into a ready-to-shop grocery list and updates everything weekly based on your actual progress - not static formulas. The system is designed to remove decisions that derail results, focusing on sustainable habits over daily perfection.

Who should use Fettle?

Fettle is built for people who want evidence-based nutrition that fits real life. If you're tired of tracking after the fact, frustrated by static macro calculators, or overwhelmed by constant food decisions, Fettle's proactive planning approach removes the friction. It's for anyone seeking sustainable fat loss, better habits, or smarter nutrition without chasing daily perfection.