Apricot kernel

[3] The kernel is an economically significant byproduct of fruit processing and the extracted oil and resulting press cake have value.

[citation needed] In Mandarin Chinese, the term xìngrén (杏仁) can refer to either apricot kernels or almonds.

Symptoms include nausea, fever, headaches, insomnia, increased thirst, lethargy, nervousness, various aches and pains in joints and muscles, and a drop in blood pressure.

[13] In 1993, the New York State Department of Agriculture and Markets tested the cyanide content of two 220 gram (8 oz) packages of bitter apricot kernels imported from Pakistan that were being sold in health-food stores as a snack.

The results showed that each package, if consumed entirely, contained at least double the minimum lethal dosage of cyanide for an adult human; the product was removed from stores.

Apricot kernels
Apricot stones (kernels are inside)