Ok... so... one of my cats today ate some small chunks of onion out of the garbage, and as a result got very ill & started vomiting it back up, and so of course I looked it up online, and what do you know, Onions are TOXIC to cats. (yes I panicked, and yes a vet trip was arranged) and since I had NO IDEA, I figured most of the world doesn't either, so here is a LIST of human foods that are TOXIC (fatally - if your cat/dog eats ANY of the following, it is vitally important you get them into see a vet IMMEDIATELY, and NEVER NEVER feed them these foods on purpose!)
(in no particular order - IN ANY AMOUNT, no matter how small, even a dash of onion powder, for example, can KILL your pet):
ONIONS
GARLIC
CHOCOLATE
TOMATOES
POTATOES or POTATO EYES
GRAPES
RAISINS
APRICOTS
CHERRIES
PEACHES
AVOCADO
COFFEE (beans or brewed)
MACADAMIA NUTS
RHUBARB LEAVES
YEAST DOUGH
(all of the above WILL CAUSE SERIOUS HEALTH ISSUES and DEATH if not seen by a vet ASAP!)
in addition to the immediate attention
TOO MUCH TUNA can result in "Yellow Fat Disease" (fatal)
TOO MUCH LIVER can result in Vitamin A Toxidosis (fatal)
TOO MUCH MILK can result in gastrointestinal problems
(*probably* not fatal, but very uncomfortable for the animal, and wuite the messes for you to clean up, and can lead to a host of other problems as a result)
This list is as complete as I can find searching online, to find out the specific problems/symptoms of each, that's up to YOU to search ^o~ Now that you are aware of what NOT to feed your cats & dogs, please feed your pets table scraps WITH CARE!