The foods that are not safe for dogs cause symptoms ranging an upset stomach to breathing difficulties and even death. Some of these foods cause an instant reaction, while others cause a delayed response that appears over time.

When you have a pet, it’s important to keep the phone number for your local emergency veterinary clinic and animal poison control center handy. If you believe your dog has consumed a toxic food, seek medical attention immediately.

Foods Not Fit For Corgis

The following foods are not only unhealthy for our pets, but many of them can also be toxic


Grapes and raisins




Lemons & limes

Coffee & tea—dogs should not consume food or beverages with caffeine

Foods & chewing gum containing Xylitol

Macadamia nuts

Yeast dough

Foods high sodium—including bacon


You’ve likely heard that you’re never supposed to feed a dog chocolate, and there’s a reason for that.32 The delicious candy contains caffeine-like stimulants known as methylxanthines. If ingested in large amounts, chocolate can cause vomiting, diarrhea, irregular heartbeat, seizures, and even death.

Most dog poisoning cases are the result of consuming chocolate — and many of those occur during holidays when more chocolate is present in the home.It’s important to keep chocolate products out of reach of your pup at all times.

Grapes and Raisins

While nutritious for humans, grapes and raisins are extremely toxic to dogs and can cause kidney failure. Even very small quantities of these fruits can cause irreparable damage — and even death. It makes no difference if the fruit is consumed raw or cooked, grapes and raisins are lethal to dogs and should be kept out of reach at all times.


Along with other members of the genus Allium like shallots, leeks, and chives, onions and garlic can make dogs very sick by damaging their red blood cells, which can result in anemia, and even death. Depending on the amount ingested, the dog may not immediately show symptoms, including vomiting, diarrhea, abdominal pain, depression, and loss of appetite.  If you suspect your dog has consumed onions, garlic, or other plants in the genus, immediately contact your veterinarian for help monitoring your pet’s condition.


You may be surprised to find that onions are added to many dog foods, either in powdered or dry form.  Conversely, it’s said that a small amount of garlic is good for your pet as it can act as a natural flea repellent and we’ve seen it listed as an ingredient in many dog biscuit recipes. Garlic contains the toxin thiosulphate which can lead to haemolytic anaemia in your dog which causes red blood cells to burst resulting in a reduced oxygen supply to the dog’s vital organs.


Avocado leaves, fruit, seeds, and bark all contain a toxin called persin that can cause upset stomach in dogs. While birds and other mammals including horses, rabbits, and guinea pigs are more at risk of serious complications like heart damage and breathing difficulties from eating avocado, the vomiting and diarrhea symptoms the fruit can cause in dogs make it a food to avoid.

Macadamia Nuts

Even a small amount of macadamia nuts can cause symptoms — including vomiting, weakness, tremors, and depression — in dogs. Symptoms usually occur within 12 hours and last about 12 to 48 hours. While no deaths have been reported, it’s important to contact your veterinarian if you believe your dog has consumed any macadamia nuts. They may suggest inducing vomiting to avoid any more serious complications.

In order to keep your pup from trying these nuts, it’s best to keep any baked goods that contain macadamia nuts out of your pup’s reach.


Even drinking a small amount of alcohol can result in significant intoxication for a dog, which can lead to vomiting, seizures, and even death. In addition to alcoholic beverages, dogs can suffer from ethanol intoxication after drinking perfume, medication, paint, and antifreeze; or after eating rotten apples, sloe berries, or uncooked dough.

Avoid ice cream. Although there can be lactose issues with yogurt, it’s a better option that offers calcium and can aid digestion. Choose plain yogurt without added sugar or xylitol, a sugar substitute that is toxic to dogs.

Moldy or Spoiled Food

We normally associate food poisoning with humans but, believe it or not, it’s also fairly common in dogs.

Dogs being dogs, they will rummage in dustbins and love to forage when out in the woods or fields, especially if they’re hungry…and when are they not hungry?

Bones: Not A Poison, But Still Dangerous!

Whilst fish and meat bones aren’t poisonous, they can be hazardous.

Sharp or splintered bones can also cause considerable damage to your dog’s digestive system and his intestines.

If you want to give your dog a bone, ask your local butcher for one. He’ll know which are safe for your pet.

Cat Food Is For Cats!

As cat food contains a high proportion of protein and fats, it makes it a particularly toxic food for dogs, especially when fed over a long period of time.

Any diet containing too much fat can cause pancreatic problems.

Wild Mushrooms are a Toxic Food for Dogs

Please note, not all mushrooms are classed as toxic food for dogs. I often give Max leftover casserole (with mushrooms) as a base for his next meal. I chop in some fresh vegetables, some meat and a little brown rice and that usually lasts him a couple of days.

Not all wild mushrooms are poisonous and the more discerning of us can tell the difference between those you can safely eat and those that you can’t.

Unfortunately, our Cockers aren’t as discerning as us and probably won’t know the difference.

Certain wild mushrooms contain toxins that can cause a range of symptoms varying from a mild sickness to serious illness or even death.

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