bitter almonds have huge amounts of it yes, 400g of them would kill an adult. sweet almonds have a lot less and considered "safe" but it's a poison nonetheless. its present in the seeds of most stone fruits, and seeds of many others. like apples. prefer as close to zero cyanide in my body as possible as for the cashew trade, Google will be your friend. a 2018 Belgian study found only 3% of the cashew industry met fair trade conditions. most cashews are processed in India and Vietnam, which have rather lax labour laws.