Foods not to feed your dog

What foods should you never feed your dog?

There are certain foods that you should not feed your dog under any occasion. While individual cases will vary based on breed, weight, and other factors - in general this list of foods applies to all dogs.

Just because humans like it, doesn't mean dogs will

Foods that are perfectly suitable to human consumption, as well as other animals, may pose a serious threat to a dog's health and well-being. Why? Because all animals have very different rates of metabolism. Metabolism is basically the process of breaking down food and turning it into energy.

Please note that while we're attempting to add every food we can find that is potentially unsafe for dogs, there are certain foods that will miss this list, so don't consider a food safe to feed to our dog just because it's not on this list.

List of foods not to feed your dog

Here's an alphabetized list of foods that are unsafe and unfit for canine consumption. We'll be updating it and adding foods as we learn more. The ones in red italics are especially dangerous.

Alcohol - I'm sure you've heard of the birthday parties where the dog accidentally gets into some of the spilled keg beer, and then gets all silly to the amusement of the crowd. While it may be funny to you, it's not funny to your dog. Alcohol can cause not only intoxication, lack of coordination, poor breathing, abnormal acidity, coma and death.

Avocado - Avocados contain Persin, which can cause diarrhea, vomiting, and heart congestion.

Baby food - baby food by itself isn't terrible, just make sure it doesn't contain any onion powder. Baby food also doesn't contain all the nutrients a dog relies on for a healthy, well maintained diet.

Bones - the danger with bones isn't the nutritional content, nor is it necessarily the danger of chocking. Rather, you need to be careful with bones from meat sources such as chicken and fish because they can harm your dog's digestive tract.

Candy and chewing gum - not only does candy contain sugar, but it often contains Xilotyl, which can lead to the over-release of insulin, kidney failure, and worse.

Cat food - not that they would want this anyways ;) but cat food contains proteins and fats that are targeted at the diet of a cat, not a dog. The protein and fat levels in cat food are too high for your dog, and not healthy.

Chocolate - You've probably heard this before, but chocolate is a definite no no for your pup. And it's not just about caffeine, which is enough to harm your dog by itself, but theobromine and theophylline, which can be toxic, cause panting, vomiting, and diarrhea, and damage your dog's heart and nervous systems.

Citrus oil extracts - can cause vomiting.

Coffee - Not sure why you would give your dog coffee, but pretty much the same applies here as to chocolate.

Corn on the cob - this is a sure way to get your dog's intestine blocked. The corn is digested, but the cob gets lodged in the small intestine, and if it's not removed surgically, can prove fatal to your dog.

Fat trimmings - can cause pancreatitis.

Fish - the fish that you need to be careful about are salmon and trout. They contain a parasite, even when fully cooked, that while not harmful to humans will do a number to your poor pup.

Grapes and raisins - this is one that lots of dog owners are unaware of. Grapes contain a toxin that can cause severe liver damage and kidney failure.  We've heard stories of dogs keeling over from only a handful of grapes.

Hops - an ingredient in beer, the consumption of hops by your dog can cause panting, an increased heart rate, fever, seizures, and even death.

Human vitamins - some human vitamins are okay to use - they key is comparing the ingredients (all of them - active and inactive) to the vitamins your vet subscribes (often you can get the human equivalent for much less money). Make sure there's no iron - iron can damage the digestive system lining, and prove toxic for the liver and kidneys.

Liver - avoid feeding too much liver to your dog. Liver contains quite a bit of Vitamin A, which can adversely affect your pup's muscles and bones.

Macadamia nuts - these contain a toxin that can inhibit locomotory activities, result in weakness, panting, swollen limbs, and tremors; and damage your dog's digestive, nervous, and muscle systems.

Marijuana - not that you would pass the bong to your dog, but if you do, you should know that it can adversely affect your pup's nervous system and heart rate, and induce vomiting.

Milk and dairy products - while small doses aren't going to kill your dog, you could get some smelly farts and some nasty cases of diarrhea. Why? Dogs are lactose intolerant (as are an increasing number of humans today), and don't have enough of the lactase enzyme to properly digest dairy foods. If you really need to give them dairy, look into lactose-free dairy products.

Mushrooms - Just as the wrong mushroom can be fatal to humans, the same applies to dogs. Don't mess with them.

Onions, garlic, and chives - no matter what form they're in (dry, raw, cooked, powder, within other foods), onions and garlic (especially onion) are some of the absolute worst food you could possibly give your pup (it's bad for dogs, and its even worse for cats). They contain disulfides and sulfoxides (thiosulphate), both of which can cause anemia and damage red blood cells.

Persimmons, peaches, and plums - if you live in an area that is home to persimmon, peach, or plum trees, look out. Persimmon seeds and peach and plum pits can cause intestinal obstruction and enteritis. You'll want to make sure there aren't any wild persimmon or other fruit trees that produce seeds growing in your back yard. If you notice your dog crapping all over the place, and see a bunch of seeds or pits in their poop - you'll need to break out the saw and chop down some tree.

Potato, rhubarb, and tomato leaves - these contain oxalates, which can adversely affect the digestive, nervous, and urinary systems.

Raw eggs - the most obvious problem here is salmonella. But raw eggs also contain the Avidin enzyme, which inhibits the absorption of vitamin B (Biotin). Your dog uses vitamin B to keep a healthy coat and skin.

Raw fish - another vitamin B (Thiamine) deficiency can result from the regular consumption of raw fish. Loss of appetite will be common, followed by seizures, and in rare instances, death.

Salt - just like salt isn't the healthiest thing for humans, it's even less healthy for your dogs. Too much of it can lead to an imbalance in electrolyte levels.

String - while not a food itself, foods can often contain or be near string (ie. meat you've wrapped for the oven). If your dog were to eat a string, it could get stuck in their digestive tract and cause complications.

Sugar - this applies to any food containing sugar. Make sure you check the ingredient label for human foods - corn syrup is found in just about everything these days. Too much sugar for your pup can lead to dental issues, obesity, and even diabetes.

Tobacco - a big no no for dogs (and humans). The effects nicotine has on dogs are far worse than on humans. Nicotine can damage your pup's digestive and nervous systems, increase their heart rate, make them pass out, and ultimately result in death.

Yeast - just like yeast rises bread, it will also expand and rise within your pup's tummy. Make sure they don't get any - while mild cases will cause gas, lots of farting, and discomfort - too much of it could rupture their stomach and intestines.

Keep these out of your dog's reach as well

While these don't fall in a particular category above, you'll want to avoid them as well:

Old food - you don't like old and moldy food, so what makes you think your dog will? The bacteria in spoiled food contains all sorts of toxins that can be damaging to your dog's health. Give them the freshest and best, dog-approved food only!

Leftovers - I know it's difficult to keep your dog from feasting on your dinner left overs after they've had to sit their and watch you eat it all in front of them. But the fact is that if you feed them leftovers regularly they won't be getting a proper diet. If you do give them table scraps, make sure take out the bones and trim down the fat.

Check the ingredients - Bottom line is know what's in the food your giving your dog. The items from the list above should definitely not be on there. You'd be surprised at how many foods contain sugar and caffeine, that you wouldn't expect to without first checking the ingredient list.

Human snacks - chips can contain garlic and onion powder, cookies may contain raisins, chocolate or macadamia nuts, etc. Bottom line - there's a reason there's food made especially for dogs.

When in doubt, see a vet

If your dog is acting strangely, or experiencing even minor symptoms including weakness, lack of coordination, vomiting, diarrhea, etc. and you think he or she may have consumed something they shouldn't have, seek a veterinarian's attention immediately. If you wait too long, your dog might not make it.

Keep your dog on a healthy diet

Your dog is a big responsibility - just as with a child, you've welcomed another living being into your household and family. We probably don't have to tell you to take care of your dog as if it was your kid, but what people often don't realize is that as similar as the two can be, they also have very different needs when it comes to food. Ask your veterinarian what kind of food might be best for your particular dog breed.