28 Human Foods That Are Poisonous To Dogs

Last Updated on June 28, 2019 by Denise Leo. Post first published on March 27, 2018.

A number of food items that are edible for humans and even other pets, may easily cause risks for dogs. Check this list out for your own education.

Human Foods Toxic To Dogs

1. Alcoholic beverages

May cause the puppy to become intoxicated, fall into a coma and may even be fatal.

2. Avocado (every part including foliage and bark)

May cause nausea, diarrhoea, problems with breathing, a build-up of fluid in the chest, abdomen and heart; or it may cause pancreatitis.

3. Baby food

Often contains onion powder, which is very harmful for dogs. (Please see onion below.) Can cause deficiencies in the diet if too much is consumed.

4. Bones from poultry, fish or other types of meats.

May cause lacerations or blockages of the digestive system.

5. Bones (cooked)

Can easily splinter and cause damage to your pet’s organs.

Caffeine (from coffee grounds, coffee, tea bags or tea.)
Caffeine stimulates the pet’s cardiac and central nervous systems. I may cause restlessness, heart palpitations, vomiting and even death within hours.

6. Cat food

Usually contains an overload of salt, fats and protein.

Human Foods Dangerous To Dogs7. Chocolate, coffee, tea, & other caffeine products

Contains caffeine, theobromine, or theophylline, which can be toxic and can affect the nervous systems and heart. Chocolate can cause seizures, coma and even death. Baker’s chocolate is the most toxic of all. The darker the chocolate is, the more dangerous it is. However, any chocolate in a big amount can kill a dog easily. One ounce of chocolate can poison a 30-pound dog, and most dogs can eat lots more than that. Symptoms may not appear for a couple of hours and it is usually fatal within 24 yours from then.

8. Citrus oil extracts

May cause vomiting.

9. Dairy products

Consumption of too much dairy products can cause gas, pancreatitis and diarrhoea. Pomeranians under 12 months of age can benefit from a small amount of non-fat, plain yoghurt, puppy milk or small amounts of cheese which are usually safe.

10. Onions and Garlic

Onions and Garlic have ingredients that destroy your pet’s red blood cells. Cooking doesn’t diminish the danger. Human baby food often has onions and/or garlic so always read food labels thoroughly.

11. Raisins and Grapes

Raisins and grapes can cause serious renal system failure in dogs. Symptoms can appear within 24 hours of eating them and include diarrhoea, nausea, vomiting and listlessness.

12. Bacon and Ham

Both have too much salt and fat and this may cause pancreatitis.

13. Hops

This unknown compound can cause an increase in temperature, panting, increased heart rate, seizures and is often fatal.

14. Human vitamin supplements with iron

Human Foods Dangerous To DogsCan damage the digestive system’s lining and is toxic to other organs such as the kidneys and liver.

15. Liver (in large amounts)

Raw liver or more than three serves a week of cooked liver can cause vitamin A toxicity. This can cause weight loss and anorexia, can affect the dog’s muscles and cause excessive bone growth on the elbows and spine and deformed bones.

16. Macadamia Nuts

Macadamia nuts are toxic to dogs. Clinical symptoms generally appear inside 24 hours and include spasms, depression, vomiting, listlessness and pale gums.

17. Marijuana

Can cause vomiting, may depress the nervous system and increase the pet’s heart rate.

18. Milk & other dairy products

Some adult dogs and cats don’t have enough of the enzyme lactase, which breaks down lactose in milk. This can cause diarrhoea. You can buy lactose-free milk products for your pet.

19. Mouldy or spoiled food or garbage

Often have numerous toxins that cause diarrhoea, vomiting and can also harm other organs.

20. Mushrooms

May contain toxins that affect multiple systems within the body, causing shock and, eventually, death. Wild mushrooms can cause diarrhoea abdominal pain, liver damage, convulsions, kidney damage, drooling vomiting, coma and even death.

21. Nutmeg

Can cause seizures, tremors and death.

22. Garlic and Onions

Human Foods Dangerous To DogsContain disulfides and sulfoxides which damage red blood cells, causing anaemia. Dogs are less susceptible than cats. Onions are more toxic than garlic.

23. Persimmons

Seeds can cause enteritis and intestinal blockages. Pits from plums and peaches can block your digestive tract.

24. Potato, rhubarb, tomato leaves and potato and tomato stems

Contain oxalates which affect the urinary, nervous and digestive systems. This is a bigger issue with livestock. Green potatoes and potato peels are hazardous.

25. Raw eggs

Contain avidin, an enzyme that reduces the absorption of biotin (a B vitamin). This can lead to hair coat and skin problems. Raw eggs can also contain Salmonella.

26. Raw fish

Can cause a thiamine (vitamin B) deficiency, which can reduce your pet’s appetite as well as causing seizures, and in the worst cases, even death. If you feed your pet raw fish regularly, this is more likely to occur.

27. Salt

Large quantities can cause electrolyte imbalances and kidney problems.

28. Sugary foods
Human Foods Dangerous To Dogs

Can lead to dental problems, obesity and possibly diabetes mellitus.

29. Table scraps in large amounts

Table scraps aren’t nutritionally balanced. Never use them as more than 10% of your pet’s diet. Trim fat from meat and don’t feed your dog bones.

30. Tomatoes

Can cause heart arrhythmias and tremors. Tomato plants are the most toxic, but tomatoes themselves are also dangerous. Apart from the tomato itself, all other parts are also poisonous to humans.

31. Walnuts

Walnuts are poisonous to dogs.

32. Xylitol

Diet products containing a sweetener called Xylitol can cause a rapid blood sugar level drop, causing depression, seizures and loss of coordination. If not treated quickly, your dog could die.

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