green potatoes contain solanine, a naturally occurring substance that is poisonous when consumed. this type of food poisoning is caused by

The type of food poisoning caused by green potatoes containing solanine is chemical poisoning. Solanine is a naturally occurring toxic glycoalkaloid poison that can cause poisoning when consumed. It primarily produces gastrointestinal symptoms such as vomiting, diarrhea, and abdominal pain, and in higher doses, can cause more severe effects including neurological disorders. Solanine poisoning is distinct from microbial food poisoning because it is caused by a chemical substance that naturally occurs in green or sprouted potatoes rather than by bacteria or other microbes. Cooking does not destroy solanine, so poisoning comes from ingestion of the toxin itself in potatoes that have turned green due to light exposure and increased solanine production.