Louie, my 2‑year‑old Yorkshire Terrier, is a picky eater when it comes to fruit. However, he genuinely enjoys tomatoes and persimmons. When I add tomatoes to his homemade meals or offer cherry tomatoes as treats, his expression instantly brightens.
Because tomatoes are something Louie eats regularly, I wanted to整理 what dog owners should know before feeding them. This post explains whether tomatoes and cherry tomatoes are safe for dogs, and specifically addresses seeds, skin, and tomato juice, which often cause confusion.
1. Dogs and Tomatoes
Dogs can safely eat fully ripe tomatoes. I regularly use ripe tomatoes in Louie’s homemade meals and treats.
However, green parts such as stems, leaves, and unripe tomatoes may contain solanine, a toxic compound. Solanine can cause symptoms such as stomach upset, vomiting, or lethargy, so all green parts must be removed before feeding.
Cherry tomatoes should not be given whole to small dogs, as they may swallow them without chewing. Cutting them into smaller pieces is safer. If tomatoes are served cold, allow them to reach room temperature first, as very cold food may irritate sensitive stomachs.
2. Nutritional Benefits
Tomatoes contain lycopene, vitamin C, beta‑carotene, potassium, and dietary fiber. These nutrients support immune health, skin and coat condition, and cellular protection.
Because tomatoes are acidic, they should be fed in moderation, especially to dogs with sensitive digestion. Overfeeding may lead to diarrhea or vomiting.
There is no fixed gram‑per‑kilogram rule. If tomatoes are already included in a dog’s regular meals, additional tomato treats are unnecessary. When used as treats, they should remain within about 10% of daily calorie intake, adjusted to each dog’s overall diet.
3. Nutrition Facts (USDA, per 100 g)
Source: USDA FoodData Central
Raw tomatoes vs. cooked tomatoes
Water: 94.5 g / 80.6 g
Calories: 18 kcal / 79 kcal
Protein: 0.88 g / 1.96 g
Fat: 0.2 g / 2.68 g
Carbohydrates: 3.89 g / 13 g
Dietary fiber: 1.2 g / 1.7 g
Vitamin C: 13.7 mg / 18.2 mg
Potassium: 237 mg / 247 mg
When comparing raw and cooked tomatoes, higher values in cooked tomatoes do not mean they are inherently more nutritious. Cooking reduces water content, which increases nutrient concentration per 100 g.
4. Tomato Juice
Dogs may consume very small amounts of tomato juice only if it is made from 100% tomatoes.
Commercial tomato juices often contain salt, sugar, or additives and should not be given to dogs.
If making tomato juice at home, the skin and seeds may be blended, but the acidity is high. Always dilute with water and offer only a minimal amount.
5. Tomato Seeds
Tomato seeds are not toxic to dogs in small amounts.
However, swallowing whole cherry tomatoes can irritate the digestive tract, especially in small breeds. Cutting tomatoes before feeding helps reduce this risk.
While seed removal is not required, dogs with sensitive stomachs should be monitored carefully after consumption.
6. Tomato Skin
Raw tomato skin can be tough and difficult for small dogs to digest.
Lightly blanching tomatoes softens the skin, making digestion easier. Alternatively, peeling the skin before feeding reduces digestive 부담.
Louie enjoys raw tomatoes, but I usually remove the skin before offering them.
Reflections
Although Louie does not enjoy most fruits, tomatoes are an exception that work well in both his meals and treats.
With proper preparation, cherry tomatoes can be a safe and useful ingredient for dogs. As with any food, safety depends on ripeness, portion size, and the individual dog’s digestive tolerance.
If your dog enjoys tomatoes, feeding them thoughtfully and in moderation can be a simple way to add variety without unnecessary risk.