How to use this section
You do not need to read the whole section in order. Start by choosing the job to be done: understand the mechanism, set a starting target, build a logging routine, shape a workable eating pattern, or sort out fasting. Then move into the narrower guide before you jump into calculators and databases.
不繞路的 3 步
先弄清基礎，再算出每天的參考值，最後回到實際食物和份量。
基礎指南
這些短文不講太多理論，先把最該知道的東西說清楚。
Basics and calculations
Start here for the mechanism, daily calorie estimates, deficit logic, and the meaning of BMR.
Logging and progress tracking
Use these if the issue is how to log food, combine data, and read progress without overreacting.
Diet structure and macros
Use this branch when the real question is how to shape meals, protein, macros, and a workable eating pattern.
Fasting and meal timing
Use these if the question is about intermittent fasting, eating windows, or the broad fast query.
Apps and faster input tools
Use these if you are choosing tools: apps, AI logging, food scanning, and lighter ways to get the data in.
去計算工具
先看完基礎後，直接去看每日目標、單份和食物會更快。
Before you trust the math
公式怎麼來，資料從哪來
如果你想看清這些數字背後的邏輯，可以打開「資料」部分。開始使用前不必先讀完。