2, eat raw ginkgo, generally children eat about 20 or adults eat about 50, there will be a risk of poisoning. The way to prevent ginkgo poisoning is to eat it after cooking, but the cooked ginkgo toxin has not been completely destroyed, so it is not suitable for excessive consumption. In addition, soaking ginkgo leaves in water is also dangerous. According to the investigation, Ginkgo biloba leaves contain ginkgolic acid, which will damage the heart if taken too much or for a long time.