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Can Dogs Eat Lemons? 5 Symptoms if Your Dog Eats Lemons

Written by MasterClass

Last updated: Apr 19, 2022 • 3 min read

Lemons and other citrus fruits can be dangerous if your dog consumes large amounts. Read on to learn why you should avoid feeding dogs lemons and the common symptoms of an adverse reaction.

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Can Dogs Eat Lemons?

You should avoid feeding your pooch lemons, limes, grapefruit, or other citrus fruits. For humans, lemon juice contains essential nutrients, such as potassium and vitamin C, and potentially beneficial antioxidants, like limonene; however, lemons contain little nutritional value for dogs.

Additionally, citrus fruits pose health risks to canines due to their acidity and chemical makeup. Pet parents should instead feed their pup small quantities of safer fruits—such as blueberries and cantaloupe—if they wish to diversify their dog’s diet beyond their regular dog food.

Why Are Lemons Bad for Dogs?

Lemons present no health benefits to dogs. In fact, the citric acid in the fruits makes lemons toxic to the animals. Lemons and lemon products can harm a dog’s digestive system and wear down their teeth enamel. Additionally, lemon trees and fruits contain psoralen compounds—chemicals that can cause adverse gastrointestinal symptoms, such as diarrhea or vomiting.

Fortunately for dog owners, most canines find lemons unappealing since the fruits exhibit qualities that are repellents to animals. If a lemon’s robust, citric aroma doesn’t dissuade a curious dog from eating the fruit, then the bitter taste will likely do the trick.

5 Symptoms to Watch for if Your Dog Eats Lemons

If you know your dog has eaten lemons or you suspect your pet has eaten lemons,monitor them and watch for signs they need medical help. Here are common side effects your dog might experience after eating citrus fruits:

  1. 1. Constipation: Although an average-sized dog might be able to consume very small amounts of lemon flesh without experiencing adverse effects, the skin and seeds can still be challenging to digest. These lemon parts can collect in a dog's stomach and digestive tract to form an intestinal blockage. Constipation should pass after a few days, but if your pet’s bowel movements don’t return to normal, you should contact your veterinarian for advice.
  2. 2. Drooling: Dogs do not have to consume a lot of lemons to experience adverse side effects. Even a small amount of lemon or lemon essential oils can cause your dog to drool. If your dog ingests lemon skin or pith, monitor them closely for drooling, shortness of breath, and other unusual behaviors, which might be signs of toxicity in their system.
  3. 3. Gastrointestinal distress: The most common symptom in a pet following the consumption of citrus fruit is an upset stomach and minor gastrointestinal issues. If your pet experiences severe vomiting or diarrhea for several days, contact your local veterinarian for treatment options.
  4. 4. Muscle tremors: Commercial lemon food products might contain xylitol, a preservative and sweetener. Xylitol is a hazardous compound that can cause severe seizures, tremors, and neurological symptoms if a dog ingests large quantities. Monitor your pet closely if you suspect they have consumed a lemon peel or citric juice.
  5. 5. Rashes: Lemons and other human foods can cause your pet to present symptoms of an allergic reaction. Common allergy symptoms include rashes, itchiness, and lethargy. Some dog breeds might be more sensitive to citrus foods than others and will experience symptoms proportionally.

Before Sharing With Your Pooch

Certain human foods can cause adverse reactions in canines, so always consult your veterinarian to determine whether it is safe to add these foods to your pet’s diet. This article is for educational and informational purposes and is not a substitute for medical or dietary advice.

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