Eating Slowly: Slow Eaters Are 42% Less Likely to Have Obesity

One intervention that costs nothing and forbids no food: eat the same plate — just more slowly.

The numbers

A systematic review and meta-analysis reviewing six longitudinal and fifteen cross-sectional studies found that eating speed is associated with BMI, and that non-fast eaters have a significantly lower BMI than fast eaters^[1], with an association also between waist circumference and eating speed^[1].

Per a medical review from the University of Chicago, slow eaters are 42% less likely to have obesity than fast eaters, and moderate-speed eaters are 29% less likely to be overweight^[2].

Why does it work?

Two documented reasons:

1. Fewer calories: earlier studies link slow consumption to lower energy intake^[1] — because the satiety signal needs time to arrive.
2. Higher burn: oral stimuli from tasting and chewing significantly increase diet-induced thermogenesis, which may help prevent weight gain and obesity^[3].

And in our habits

Communal eating from a single platter creates an unspoken race — the faster you go, the more you take. Add eating in front of screens and rushed meals between errands.

Five tricks that work immediately

• Put the spoon down between bites — the simplest and strongest trick.
• Drink water between bites (and before the meal).
• Don't eat in front of a screen — attention slows you automatically.
• Start with the food that needs most chewing: salad or meat before rice.
• Aim for a 20-minute meal — set a timer at first if needed.