Eating to about 80% full. The number doesn't matter. It means eating a little less than you normally would, and noticing how that feels.
Same meal, same Ian, two speeds. The stomach fills first. The message takes a while to reach the brain. Eat fast and you're past full before it arrives.
Satisfied is the spot between hungry and full where more food would not make you feel better. It's easy to walk right past.
Eight small moves. The first five happen at the table.
It usually is, the first week. Three common versions.
None of these need a scale or an app.