Expired walnuts with a harrying flavor are no longer edible, please do not eat.

Expired walnuts will generate a substance inside, this substance is called free fatty acids, you said that the taste of halo is walnut oxidation, rancidity produced by free fatty acids odor. At the same time, the expired walnut body contains the world's recognized carcinogen aflatoxin, if accidentally eaten to this, or tasted bitter, to spit out immediately, otherwise it may cause poisoning or induce cancer.

Expired walnuts from the shell look different colors, color shades are not the same, looks like there is a sense of obsolescence, will be flooded with oil, there is no walnuts of the original flavor, expired walnuts deterioration can never eat, eat is not conducive to good health, the serious will vomit, diarrhea.

Walnuts have "long life", "long live son", "the treasure of health" reputation, with hazelnuts, cashews, lentils together known as the world's famous four nuts. But everything in moderation, just like walnuts should not be eaten too much, do not because of walnuts to supplement the brain, eat desperately, especially children. Walnuts contain a lot of high fat, not only not easy to be digested and absorbed, but also lead to the accumulation of body fat. Eating too much will also be diarrhea and abdominal pain.

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