Till September 2021, around 35-40 dollars a pound.

Each 100 grams of walnut meat contains 20.97 units of antioxidants, which is 20 times higher than citrus, spinach's antioxidant content is 0.98 units, carrots are 0.04 units, and tomatoes are 0.31 units.

On the amount of walnuts: It is generally believed that every day to eat 5 to 6 walnuts, about 20 to 30 grams of walnuts is appropriate to eat too much, will produce phlegm, nausea. In addition to yin deficiency and fire, loose stools, vomiting blood, nosebleeds should be eaten sparingly or fasting walnuts.

Eating walnuts note

Walnuts can not be eaten with strong tea, because walnuts are rich in protein and iron, tea contains tannic acid, tannic acid will be combined with walnuts in the iron, protein, generating insoluble precipitates, is not easy to be digested and absorbed, so eat walnuts avoid drinking strong tea.

Walnuts can not be eaten with soft-shelled turtle meat, because walnuts and soft-shelled turtle meat with food, will lead to poisoning, affecting health. Walnuts should not be eaten with soybeans, which can cause bloating, abdominal pain, indigestion.