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Scientists finally figure out why cats are obsessed with tuna



A tin of tuna is among the most iconic cat foods. Even the most finicky felines seem to love the stuff. Now, scientists know why.

In a study published in the August issue of the journal Chemical Sense, researchers found that cats, like humans, use taste receptors that detect umami — one of the basic tastes alongside sweet, sour, bitter and salty. But unlike human umami receptors, cats’ taste receptors bind to two chemicals found in particularly high concentrations in tuna. These chemicals enhance the umami experience for cats, making them strongly prefer the fishy treat.

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