Although many cultures have eaten some varieties of elephant ears safely, I advise against eating them in large quantities. Especially children and pets should be kept away from these plants as it contains high amounts of oxalic acid.
Some symptoms of elephant ear plant poison include:
• vomiting or nausea
• diarrhea
• blisters and burning in mouth
• swelling in mouth or on face
• redness and burning of eyes
• pain when swallowing
Contact a poison control center immediately if symptoms worsen or high amounts of elephant ear leaves are consumed.