This information has been compiled from several sources

Table scraps (in large amounts) - Table scraps are not nutritionally balanced. They should never be more than 10% of the diet. Fat should be trimmed from meat; bones should not be fed.

Meats - Meats should be boneless and it’s best if the skin is removed. Raw meat has a small risk of food poisoning and parasites.

Vegetables - Dogs have shorter digestive tracts than humans and cannot digest most vegetables whole or in large chunks. It’s best to put them through a food processor before giving them to your dog.

Grains - Grains (rice, bread, oats) should not be given in large amounts or make up a large part of a dog’s diet, but these foods are generally safe in small amounts.

Baby food - Can contain onion powder, which can be toxic to dogs. (Please see onion below.) Can also result in nutritional deficiencies, if fed in large amounts.

Fatty foods -
Can cause vomiting, diarrhea and abdominal discomfort. Can also result in an inflammatory condition of the pancreas (pancreatitis), particularly in dogs.  
Fat trimmings can cause pancreatitus.

Moldy or spoiled foods - May contain certain molds that release toxins which can cause vomiting, severe tremors, seizures and death. Spoiled food can also contain bacterial toxins which can produce severe food poisoning signs.

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

Bones from fish, poultry, or other meat sources -  Can cause obstruction or laceration of the digestive system.

Cat food (is not for dogs) - Generally too high in protein and fats for Dogs.

Large amounts of liver - Can cause Vitamin A toxicity, which affects muscles and bones

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

Raw fish - Can result in a thiamine (a B vitamin) deficiency leading to loss of appetite, seizures, and in severe cases, death. More common if raw fish is fed regularly.

Macadamia nuts
- Can produce weakness (particularly in the hind legs), depression, vomiting, ataxia and tremors. Thus far, dogs have been the only species reported to the ASPCA/APCC that are effected by ingestion of this species of nut.  
Contain an unknown toxin, which can affect the digestive and nervous systems and muscle.

Onions, Garlic, & Related Root Vegetables (raw, cooked, or powder) - Can produce vomiting, diarrhea, and can cause significant damage to red blood cells. Onions contain sulfoxides and disulfides, a substance (N-propyl disulphide) which destroys red blood cells in the cat, causing a form of anemia called Heinz body anemia. Garlic contains a similar substance in a lesser amount.

Fruit Pits  - Can cause obstruction of the digestive tract. Pear pips, the kernels of plums, peaches and apricots, apple core pips (contain cyanogenic glycosides resulting in cyanide posioning)

Persimmons -  Seeds can cause intestinal obstruction and enteritis.

Avocados: The fruit, pit and plant are all toxic. They can cause difficulty breathing and fluid accumulation in the chest, abdomen and heart

Mushrooms - Can contain toxins, which may affect multiple systems in the body, cause shock, and result in death.

Brocolli - in large amounts

Citrus Oil Extracts - Can cause vomiting.

Raisins and grapes -
Ingestion of these fruits have been associated with acute kidney failure in dogs. Most dogs initially vomit and drink a lot of water. They then develop diarrhea, kidney failure and, finally, death.  There have been no problems associated with grape seed extract.

Salt -  Can produce electrolyte imbalances / sodium ion poisoning which causes vomiting, depression, tremors, excessive thirst, diarrhea, excessive urination, elevated body temperature, seizures and death if a large enough amount is consumed.

Nutmeg: Nutmeg can cause tremors, seizures and death

Yeast dough
―yeast-based dough can not only expand in the stomach as it rises, causing an obstruction or intestinal rupture, but yeast can form alcohol when it rises, which can cause alcohol poisoning.

Tomatoes (leaves & stems), Potatoes (green, raw and stems), Rhubarb  - These foods are members of the Solanaceae family of plants, which includes the Deadly Nightshade, and contain a bitter, poisonous alkaloid called Glycoalkaloid Solanine, which can cause violent lower gastrointestinal symptoms.   Oxalates, which can affect the digestive, nervous, and urinary systems The Feline Future web site offers a rare description of a cat which was close to death from ingesting just one cherry tomato (See the link on the sidebar).

Chocolate, coffee, coffee beans, tea, caffeine
 - It's becoming more widely known that chocolate is very toxic to both cats and dogs. Theobromine or theophylline,are the offending substances here. Janet Tobiassen Crosby, D.V.M. has an excellent article on the symptoms, effects, and treatment o chocolate toxicity. Caffeine can be toxic and affect the heart and nervous systems.

Milk, dairy products, cheese
- Although milk is not toxic to cats, it may have adverse effects. Simply put, adult cats fed a nutritious diet don't need milk. Dogs and cats are relatively lactose intolerant.  Some adult dogs and cats do not have sufficient amounts of the enzyme lactase, which breaks down the lactose in milk   which means that the lactose in milk and milk products produces stomach upset, cramps, and gassiness.  Therefore, too much of a dairy food could cause gastrointestinal upset, including vomiting and diarrhea. Lactose-free milk products are available for pets  If your cat loves milk, and begs for it, a small amount of cream may be okay, two or three times a week. (The more fat in the milk, the less lactose.) Another compromise is CatSip,  a product made from skim milk with an enzyme added that helps the digestion of lactose. Catsip is available in supermarkets such as Safeway, Albertson's and A&P, as well as pet products chains, such as PetSmart and Petco.

Other human products to avoid feeding your pet:

Human vitamin supplements containing iron - Can damage the lining of the digestive system and be toxic to the other organs including the liver and kidneys.
Alcoholic beverages Can cause intoxication, coma, and death.
Hops - Unknown compound causes panting, increased heart rate, elevated temperature, seizures, and death.
Tobacco - Contains nicotine, which affects the digestive and nervous systems. Can result in rapid heart beat, collapse, coma, and death.
Marijuana - Can depress the nervous system, cause vomiting, and changes in the heart rate.
String - Can become trapped in the digestive system; called a "string foreign body."

Plants and other toxins that are Poison to Dogs - Extensive List!
Human Foods that Poison Pets
Human Foods to Avoid for Cats - Toxic Foods
Canine Food Safety

Back to:  HEALTH

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