Which cultures don't brush their teeth?

Why the Inuit Rarely Get Cavities—Despite Not Brushing Teeth

For centuries, the Inuit of the Arctic have lived without toothbrushes or modern dental care, yet they’ve remained largely free of tooth decay—a fact that has long puzzled scientists and anthropologists. While most cultures emphasize daily brushing to prevent cavities, traditional Inuit practices involve little more than rinsing the mouth with a small amount of water after meals. Surprisingly, this minimal oral hygiene hasn’t led to widespread dental problems.

The answer may lie in their traditional diet. Historically, the Inuit subsisted on a high-protein, high-fat diet composed of raw and fermented fish, seal, whale, and caribou—foods rich in vitamins and minerals but extremely low in carbohydrates and sugars. Since oral bacteria thrive on sugar to produce acid that erodes enamel, the near absence of these carbs in the Inuit diet drastically reduces the conditions that lead to cavities.

This doesn’t mean brushing is unnecessary for most people. The Inuit example highlights how diet plays a crucial role in dental health—perhaps even more than brushing alone. Modern lifestyles, filled with processed sugars and refined carbs, create a breeding ground for decay that our ancestors didn’t face. When Western foods were introduced into Inuit communities, tooth decay rates climbed sharply, proving that their natural resistance was rooted in diet, not genetics alone.

So while the Inuit tradition challenges modern assumptions about dental hygiene, it also offers a powerful reminder: what we eat matters deeply. Good oral health isn’t just about brushing twice a day—it’s about understanding the bigger picture of nutrition and lifestyle. In a world obsessed with products and routines, sometimes the most profound lessons come from those who live differently.