A dog would have to consume a large amount of ripe tomatoes before even a slight poisoning from alpha-tomatine. The amount of the tomato plant your dog ingests will affect the rapidity of the onset of toxicity symptoms. These substances are toxic to both pets and people. Skin rashes. In addition to this, it can also form a red patch around the eyebrows and the … If you see some side effects in your dog after a tomato treat, such as excessive sleep or shakiness or may be digestion problems, stop feeding tomatoes immediately. Itching skin. Of course, tomatoes for dogs is not necessarily an only negative proposition. If you see some side effects in your dog after a tomato treat, such as excessive sleep or shakiness or may be digestion problems, stop feeding tomatoes immediately. Whenever you will be eating something, the dog will be hanging around the corner in hopes to be offered some too. Vomiting. If your dog has a tomato allergy, you will likely see some or all of these symptoms: Licking feet. Eating the green parts of tomato or eating unripened, green tomatoes can give your dog tomatine (or solanine) poisoning. Cancer of the colon and rectum (colorectal cancer). If your dog mistakenly feeds on a lot of atropine, it could results into side effects, such as dry mouth, blockage, heaving, languor , dysphagia, tremors and different other symptom. Hot Pink or Red Ear Skin. Itching Skin. what will happen if it has it? However, smaller dogs, especially those less than 10 lbs, may become sick from even a small amount of tomato sauce. It may be possible that they are having an allergic reaction! Typically, a large amount of the green parts of the tomato plant needs to be ingested to cause toxicity symptoms. (in individuals who are allergic to tomatoes). With tomatoes, the plant is a member of ‘the nightshade family’. For this reason, it is recommended not to feed your dog any tomato sauce. All part of the tomato- the fruit itself, the stem, the leaves, the vine, and the seeds can be toxic to your canine and cause undue side effects and allergic reactions. The leaves of a tomato plant contain the glycoalkaloids alpha-tomatine and dehydrotomatine, according to the Health Canada website. Gas. “Dogs may show signs of drowsiness, depression, confusion or weakness,” Dr. Lands explains. Can dogs eat tomatoes is a common question because tomatoes are safe for dogs as long as they are red, ripe and fresh. If your dog has consumed the green parts of a tomato plant, watch him carefully for signs of tomatine poisoning. This persuasion means that the tomato plant, as a whole, is poisonous to dogs. You may want to cook the tomatoes a little, so the risks decrease, but the antioxidants and vitamins will still be there. Doggie begging is why the majority of dog owners may wonder – can dogs eat tomatoes? Side Effects of a Dog Eating Tomatoes If your dog manages to consume a large amount of the toxin-carrying green parts of red tomatoes and/or unripe green tomatoes, you need to become a faithful observant of his actions to see if a visit to the veterinarian is necessary. If you do see some side effects, like the ones mentioned above, stop immediately and consult a vet. Observe your dog for about 24 hours after their consumption. If your dog starts vomiting, drooling or seems uncoordinated after feeding them tomatoes, you need to take them to a vet. So, the most likely side effect that may occur when a dog eats tomatoes is an upset stomach. You also need to consider how large Chester is and what he weighs before you decide how many he should eat. For small dogs, they would only have to eat a small amount for the symptoms to show. Growling stomach. Risks Of Your Dog Eating Tomato Sauce There is a toxin in tomatoes called alpha-tomatine, this toxin is only a concern in unripe tomatoes but ripe tomatoes do have it.