Is Magnesium Bad For Cats?

It is said that Magnesium has many multi-purpose health benefits for both humans and animals. It’s also been recommended by veterinarians as a good supplement to help with arthritis, constipation or its natural ability to fight off bacteria in the gut. However, when it comes to your cat you can be a little more cautious about how much magnesium they take in since cats are particularly sensitive to this mineral and because they need less of it than other species do.

Magnesium is a mineral that cats need to stay healthy. If your cat has eaten a magnesium pill, you should take them to the vet as soon as possible. Read more in detail here: my cat ate a magnesium pill.

IMPORTANT: At, we regularly consult with licensed veterinarians and other industry experts. However, the information found on should not be viewed as veterinary advice. We do our best to help you better understand your cats, but the information on this blog is not a substitute for veterinary guidance.

How much magnesium is too much for cats?

Too much magnesium can be toxic to cats. Cats need a small amount of magnesium, but too much can cause vomiting, diarrhea, and seizures.

Is magnesium toxic to animals?

Magnesium is not toxic to animals, but it can be dangerous if ingested in large quantities.

Is magnesium citrate toxic to cats?

Magnesium citrate is not toxic to cats. It is a common supplement that can be given to your cat in small doses.


Is Magnesium Bad For Cats is a question that is asked often. There are some people who believe that magnesium is bad for cats because it can cause kidney and heart problems, but there are also others who think that this mineral has no effect on the health of cats. Reference: low magnesium cat food.

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