Is Mustard Good or Bad for Dogs?

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There is a lot of talk about dogs and mustard, but you’ll want to find out the truth.

Anyone who owns a dog needs to know which foods it can and cannot have. A lot of dogs really enjoy the taste of this condiment, but is it really good for them?

It Depends on the Form

When it comes to mustard for dogs, the fact is that it can be safe or toxic, depending on the form it comes in. You should never give your dog any mustard seeds, as they are extremely dangerous for these animals to ingest. If you ever see your dog swallow a mustard seed, you should take it to the vet right away.

A Medical Use for Mustard

I bet you never would have imagined that mustard could actually be used for any medical purpose. Some veterinarians will recommend using mustard (like the kind you put on a hotdog or burger) to induce vomiting after a dog ingests a poison.

It is important that you do not try to use mustard for this reason unless you are given instructions by a veterinarian. While it can be effective, you will need to do it in a certain way. 

Mustard does not always have this effect on dogs, but it certainly can. There are probably other non-toxic things you can give your dog that are better for this purpose.

Mustard Greens

You will be able to feed your dog mustard greens, but you don’t want to give it to them raw. It is important that you puree this food beforehand. This form of mustard can actually be very beneficial to your pet’s health. It has lots of nutrients in it that can keep your dog healthy. You can put the mustard greens through a food processor if you have one handy in your kitchen.

Broccoli is another great cruciferous vegetable that you can give your dog. Just remember not to feed them too many vegetables on a regular basis, as it can cause thyroid issues. These foods can be good for them, but you should avoid overdoing it.

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Again, make certain that you don’t accidentally give your pet any mustard seeds with their greens. This could cause a potentially fatal toxic reaction.

Honey Mustard

You should be able to give your dog a little bit of honey mustard from time to time without any problems. Keep in mind that there is always a chance that your dog could have a negative reaction to the mustard, or the honey for that matter. Just like any other human food, you should give this to them in moderation. It should be a special treat and not a regular thing that they eat.

Pay Attention to How They React

It is a good idea to pay close attention to how your dog reacts after they are given any amount of mustard. There are a few things that you should look out for, including vomiting and diarrhea. If your dog experiences either of these things after eating mustard, you should avoid giving it to them in the future. 

A distended abdomen is a sign of bloating and a serious negative reaction to food. While bloating might not seem like that big of a deal, it can quickly become a severe problem.

Some of the common signs of an allergic reaction to food include:

  • Excessive itching or scratching
  • Diarrhea
  • Vomiting
  • Swelling of the face

If you notice any of the above things from your dog, you’ll want to get it in to see the vet right away. This is an emergency, as your dog could begin to have problems breathing. Mustard allergies are pretty rare among both dogs and humans, but it is a possibility.

Look at the Ingredients

You should make a point of looking at the ingredients of the mustard you want to give your dog. If it has any turmeric, garlic powder, salt, flour or sugar, you’ll want to avoid giving it to them. While not all of these things are necessarily toxic to dogs, it can cause a negative overall reaction. 

Most dogs don’t do very well with spicy foods, of which turmeric definitely is one. Spicy mustard is not something that you want your dog to have. The chances of gastrointestinal upset are simply too high with this particular food.

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Health Benefits of Mustard

With all of that being said, there are actually quite a few potential health benefits that mustard offers. This popular condiment has been shown to aid in digestion, even for cats and dogs. If your doggo has stomach problems, a little bit of mustard now and again could actually help them.

This food also contains a significant amount of zinc, phosphorus, and manganese. It has a variety of healthy essential fatty acids that are good for your dog as well. The protein, iron and selenium in mustard can supplement your pet’s diet too.

Tips for Giving Your Dog Mustard

There are a few tips to follow when it comes to giving your dog mustard, including:

  • Do not give your dog more than a teaspoon or two of mustard at once.
  • Make sure that you never give your dog any mustard with hot or spicy ingredients in it.
  • Keep a close eye on your dog to see how it reacts after eating the mustard.
  • If you notice any diarrhea or vomiting, stop giving your dog this food.


  • Mustard can be good or bad for dogs, depending on what form it is in.
  • You never want to feed your dog any mustard seeds, as they are highly toxic to these animals.
  • If your dog seems to dislike the mustard or has a negative reaction, stop trying to giving it to them.
  • Mustard greens can actually be beneficial for your dogs health, but only in moderation.
  • Take a close look at the ingredients in this mustard to confirm that it doesn’t contain anything abrasive or toxic to your pet.
  • Never give your dog more than a teaspoon or so of mustard at once.
  • This food should only be given as a special treat and not a regular thing. Give normal dog food most often.
Written by:

Hi! I'm Anna and I´m a certified cynologist (KAU, ACW). Handler, blue cross volunteer, owner of Chinese crested kennel "Salvador Dali" and breedless friend called Fenya. "I can't imagine my life without dogs and I totally support the idea #AdoptDontShop".