Cooked cashew skin can be eaten, but cashew skin is not a regular food and is not recommended. Cashew skin contains a lot of fiber, appropriate consumption can promote intestinal peristalsis, promote defecation. In addition, cashew skin contains more calcium, can be appropriate for the body to supplement calcium and other nutrients. It should be noted that the raw cashew nut skin should not be eaten, because it contains cashew nut phenol and other chemicals, which will stimulate the skin to cause redness, swelling, pain, blistering. Ingestion may lead to tongue tingling and abdominal pain. Therefore, raw cashew nut skin should not be eaten. Cooked cashew skin has been treated and is not toxic and can be eaten. However, the skin of cashew nuts is hard and excessive ingestion may cause damage to the teeth and burden the stomach and intestines, leading to abdominal pain. Therefore, people with bad teeth and poor gastrointestinal function should not eat cashew skin. People who are allergic to cashew nuts should not eat cashew nuts skin.