Jordan tried lemon.
Are Lemons Toxic to Dogs? No, but the acidic fruit can cause upset stomach, vomiting, weakness and diarrhea if large quantities are ingested. Large quantities can cause other issues, too. While lemons aren't necessarily deadly for dogs (like other fruits can be), the psoralen compounds and aromatic oils in lemons are toxic enough for your pup that you can expect upset stomachs, dizziness, and even unusual sensitivity to light.
