Think of Calories Like Gas in a Car
Your body is like a car, and calories are the fuel. Everything you do — walking, thinking, even sleeping — burns fuel. The food you eat fills up your tank.
- Eat more than you burn → Extra fuel gets stored as fat (weight gain)
- Eat less than you burn → Body uses stored fat for energy (weight loss)
- Eat equal to what you burn → Weight stays the same (maintenance)
The Only Rule That Matters
Calories In vs. Calories Out
This is the foundation of all weight management
Every diet that has ever worked — keto, paleo, vegan, intermittent fasting — works because it creates a calorie deficit. The "trick" is just eating fewer calories than you burn.