Foods Dogs Shouldn't Eat: Here's a Complete List

by Diusa SA Aug. 27, 2025
Table of Contents
    bowl containing foods that are off-limits to dogs

    Knowing which foods are off-limits for dogs is essential to avoid harming their health

    We know that dogs instinctively tend to eat anything they find tasty. However, there are some foods that are poisonous to them, and we must absolutely prevent them from eating them

    In this article, we’ve compiled a list of the most toxic foods for your four-legged friend. Having a thorough understanding of this topic will allow you to make more informed decisions and ensure your dog’s well-being

    Here they are! 

    What Not to Feed Dogs: Sugary Foods and Sweets

    Let’s start by figuring out which foods are bad for or dangerous to your dog and what you can do to ensure their overall well-being. 

    First of all, sugar can lead to overweight and obesity. In addition, many sweets contain chocolate, which is extremely harmful to dogs.

    Fruit can be very dangerous: raisins and grapes can cause serious kidney damage.

    Also be aware of xylitol, a sweetener found in:

    • chewing gum
    • candy
    • baked goods
    • toothpastes

    Xylitol can cause an increase in insulin levels and subsequent hypoglycemia, as well as liver failure. Some of the symptoms include vomiting, lethargy, loss of balance and coordination, and even seizures.

    Why is chocolate so bad for dogs? 

    Chocolate contains substances called methylxanthines, which can cause vomiting, diarrhea, excessive urination, hyperactivity, irregular heartbeat, and tremors, and in severe cases, seizures and death.

    This table shows the potentially lethal dose for your dog: 

    Dog's weight Amount of dark chocolate Amount of milk chocolate Amount of unsweetened cocoa
    2.5 kg 50 g 135 g 15 g
    5 kg 100 g 270 g 30 g
    10 kg 200 g 540 g 60 g
    20 kg 400 g 1,000 g 120 g

    8 Foods Dogs Shouldn't Eat

    In addition to chocolate, grapes, sweets, and sugary foods in general, here is a list of 8 other foods that are harmful to dogs. 

    Please note that the effects of ingesting harmful foods can vary depending on the quantity and type of food the dog eats, as well as the dog’s size.

    Bones

    Bones themselves are not harmful to dogs. However, we must always pay attention to the type of bone. This is because chicken and rabbit bones are particularly brittle and can splinter, causing injuries to a dog’s digestive tract or even piercing the stomach

    Mushrooms 

    Some types of mushrooms are harmful not only to humans but also to dogs. Our advice is to always be very careful, especially when it comes to mushrooms you’ve picked yourself rather than those bought at the supermarket.

    Bowls and foods that are off-limits for dogs

    Avocado 

    Avocado seeds, fruit, and leaves contain persin, a compound that is toxic to dogs. This substance is present in very high concentrations, especially in the variety most commonly found in supermarkets (the Guatemalan variety). Be very careful! 

    Raw eggs

    Raw egg whites interfere with the absorption of biotin(vitamin B8), which plays a role in hair growth. In addition, there is a very high risk of contracting salmonellosis.

    Garlic and onion 

    Large amounts of garlic and onion are harmful to dogs, as they have a negative effect on red blood cells by damaging them. In addition, a few days after ingestion, they can cause diarrhea and vomiting.

    Toxic dose: 5 g/kg

    1 medium-large onion: 100 g

    Salt and salty foods 

    Excessive consumption of salt or salty foods can be harmful to your dog. If your dog eats this type of food, make sure he has plenty of water available to drink so he can stay properly hydrated. Without enough water, salty foods can cause diarrhea and vomiting, and may even lead to more serious health issues.

    Alcoholic beverages 

    Although it may seem obvious to some, it’s still important to remember that all alcoholic beverages are dangerous for dogs. In fact, ethanol can cause vomiting, nausea, and difficulty moving. 

    In conclusion, a healthy, balanced diet is what allows your dog to live a healthy and happy life. Visit our Shop to discover the best dog foods!

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    The post "Foods Dogs Shouldn't Eat: A Complete List" first appeared on Dog and Cat Food | Alleva .

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