Phytotoxins can have a variety of effects on human health, ranging from mild to severe. The severity often depends on the type and amount of phytotoxin ingested. Some phytotoxins can cause acute symptoms, such as nausea, vomiting, and diarrhea, while others may have chronic effects, potentially leading to organ damage or cancer. It is important to identify and understand the specific phytotoxins present in certain plants to assess the potential risks they pose.