Dogs cannot eat onions. Onions contain highly irritating substances, so dogs eating onions can easily irritate their gastrointestinal tract and cause gastroenteritis. In addition, onions also contain n-propyl disulfide, which can cause irritation to dogs after eating them. It can cause acute hemolytic anemia, severe bone marrow damage, and life-threatening consequences, so onions should never be given to dogs.
Tips:
After dogs eat onions, they will suffer from loss of appetite, poor energy, vomiting, diarrhea, and bloody stools. Once discovered, timely medical treatment is required.