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How does taste work?

It was therefore a matter of survival. A bitter or sour taste was an indication of poisonous inedible plants or of rotting protein-rich food. The tastes sweet and salty, on the other hand, are often a sign of food rich in nutrients.

It was therefore a matter of survival. A bitter or sour taste was an indication of poisonous inedible plants or of rotting protein-rich food.

This strong link connecting taste with emotion and drive has to do with our evolution: Taste was a sense that aided us in testing the food we were consuming.

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Taste buds

By The_deaan