Whiteedge morning glory seeds contain indole alkaloids causing toxicity in humans, dogs, and cats if ingested. Humans may experience nausea, vomiting, diarrhea, dizziness, headache, and severe neurological symptoms. Cats and dogs may exhibit gastrointestinal upset, ataxia, and other distress signs. Prompt veterinary care is essential for pets, while human ingestion requires caution, especially for children.