1 / 20✕
How do we know how many calories are in a food?
The number on a food label traces back to a chemist who, from 1896, ran nearly 500 experiments in a chamber big enough to hold a person for days.
Tap to go on, or swipe →
The number on a food label traces back to a chemist who, from 1896, ran nearly 500 experiments in a chamber big enough to hold a person for days.
Tap to go on, or swipe →