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It's a taste, described as either metallic or extremely bitter, that you get in your mouth between one and three days after eating some pine nuts. The taste can last from a few days to a few weeks and makes almost everything you eat or drink taste bad too. There don't seem to be any other health side effects however.


At this time, the cause is not known: there have been complaints from France, England, USA, and Canada; people have experienced the problem with pine nuts from Costco, Trader Vic's, Sainsbury's, and other sources. One of the problems diagnosing the cause of pine mouth is that several people can eat the same meal, and not all be affected by it. Another problem is that it only reveals itself after time has passed, and not immediately, when the problem nut is bitten into. Right now, we don't know if it is related to a species of pine nut, a particular crop, contamination, fertilization, pesticide, pollution, or rancidity.


It does go away. Some people have hypothesized that it goes away when all the tastebuds on the tongue have been replaced. Since tastebuds usually have a life expectancy around two weeks, this accounts for the two weeks ascribed to the problem.

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15y ago

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