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Accordingly, what happens if a dog eats lemon?
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.
Similarly, you may ask, why do dogs react to Lemons?
Certain citrus fruits, such as lemons and limes, contain essential oils as well as a substance called psoralens in them, both of which are poisonous for dogs and can cause gastrointestinal distress and even liver failure. Most dogs find lemons highly repulsive and that is one of the reasons they act so odd around them.
Lemons – According to the ASPCA, lemons and limes are toxic to both dogs and cats. These fruits contain a substance called psoralens, which when combined with the acidity in lemons and limes, can make ingestion dangerous. As little as three grams (or about five pieces of gum) can kill a 65 pound dog.