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Dogs develop hemolytic anemia if they eat enough onions. I don't think that it matters too much whether the onions are cooked or not. The quantity of onions required is high enough that dogs can generally tolerate small doses of onions without any problem and moderate amounts of onion without clinically apparent disease, even though there may be measurable changes on lab test results. Cats are probably a little more sensitive to onion toxicity than dogs are. I can't find an exact quantity of onions required to cause toxicity problems in dogs, but there are several case reports of onion toxicity and they involve whole onions or sizable portions of chopped onions (like a cup or more). I think that feeding dogs meat that has been cooked with onions is pretty safe but you might want to avoid giving them the broth from around something like pot-roast if there were a lot of onions used in the cooking, just to be safe.
Large amounts of garlic will produce similar toxicity problems in both dogs and cats. I think that the amount required is not likely to be eaten by a cat but there are probably a few dogs who would lap up a container of spilled garlic.
Among common foods, the only other significant toxicity that I can think of are recent reports of toxicity from eating grapes and raisins that have been reported in dogs.
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∙ 13y ago
Wiki User
∙ 12y agoI think it all depends on the quality of the onion. I understand that if you cut your onion and leave it sitting out it can attract a lot of bacteria. It can make humans sick so it could make a dog sick too.
Wiki User
∙ 13y agoNO! Dogs aren't humans and their bodies can't process everything the way we do (never, ever give a dog chocolate). Onions and related foods can cause hemophilia (the inability to stop bleeding) in dogs. No onions, no.
Wiki User
∙ 13y agoWiki User
∙ 12y agoNo, they can hurl or vomit after eating onions. Onions are toxic to dogs, so should never be fed in any quantity.
Wiki User
∙ 11y agoOnions are not good to feed to dogs. They will make them sick.
Wiki User
∙ 13y agoYes, onions are not good for dogs to eat.
Danial Hrominchuk
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What type of onion can kill a dog raw or cooked?
Dogs should not eat raw or cooked onions as they find it difficult to digest, but raw onions are especially dangerous.
You wanted to know whether onions are harmful to dogs raw and cooked?
Onions are very harmful to dogs! Do not feed your dog onions. It could mean death to him.
Are onions bad for dogs?
No - dogs should never be given raw or cooked onion. Onions contain sulfides, which cause the breakdown of red blood cells and subsequent anaemia in dogs and cats. Onions and similar vegetables such as garlic, shallots and scallions contain dangerous compounds that are capable of damaging the dog's red blood cells. They should be avoided at all costs.
Are cooked onions good for you?
yes
Cooked with onions?
Many times.
Dog eats black beans?
Yes, dogs can eat black beans. They must be well cooked and should not contain salt, onions, or garlic.
Is meatloaf good for dogs?
Meatloaf is not actually good for dogs. This is because many people make meatloaf with onions and dogs should not eat onions.
Why do red onions turn black when cooked?
because the pressure changes the color when being cooked
Is it okay to have dogs swallow left over bones?
Only if they are RAW. All cooked bones splinter and are dangerous!
How long can cooked onions be stored in the refrigerator?
For 3 days.
Is it safe to leave sliced onions out?
No. Cooked onions should be stored refrigerated.
Is it ok to feed a puppy yorkie cooked minced beef?
If it is only beef, yes. If it contains onions, garlic, or spices, it would be better to avoid feeding it to your puppy. Onions and garlic can be toxic in dogs, and many dog's stomachs can't handle spiced or salted foods.
