Can Cats Eat Expired Fish – Is It Harmful?

It has happened to all of us. We make a fantastic meal and keep the leftovers for another time. Then life happens. Once you find those leftovers again, they’ve expired. You might wonder if your fish leftovers can find another use. For instance, why not give it to your cat as a way to keep it out of a landfill? Nothing gets wasted, and while you won’t be able to enjoy that wonderful meal again, maybe your cat can. Can cats eat expired fish?

Cats should never eat expired fish or any other food, for that matter. Expired fish can lead to cats experiencing fever, vomiting, diarrhea, among other food poisoning-related symptoms. In severe cases, a vet visit could be necessary.

Now that you know you can’t give your cat those leftovers, you might still be wondering what could happen to them if they accidentally eat some expired fish or other foods.

Is rotten fish poisonous to cats

Yes, rotten fish is poisonous. We know that for us, as humans, expired fish is toxic and can make us violently ill. Well, the same goes for cats. They can get food poisoning just like we can. Food poisoning is why you should never feed your cat expired fish. 

Symptoms for food poisoning in cats are similar to what we experience as humans. These are some of the most common symptoms a cat can face while experiencing food poisoning:

• Blood appearing in stool, vomit, or saliva – Seeing blood come from your pet can be alarming, but this is one of the ways their body tries to get the poison out of their system.

• Diarrhea – Your cat may experience diarrhea quickly after developing food poisoning. Diarrhea is another way for their body to rid themselves of the bacteria that entered their body.

• Lethargy – As your cat’s body tries to get the bacteria out, they may experience low energy levels and a glum mood overall.

• Lack of appetite – Your cat may choose to stop eating if they have food poisoning due to their upset stomach

Many of these symptoms and other food poisoning symptoms are present in other illnesses that may occur in cats. So, if you suspect that your cat has something different than food poisoning, you should take them to the vet as soon as possible to identify and hopefully rectify the issue.

In general, you have to consider whether its worth it to give your cat rotten ingredients in the first place. Fish thats gone bad can eventually develop chemicals in the flesh. This includes things like rimethylamine and dimethylamine.

Can cats tell if fish is spoiled

Unfortunately, cats cannot tell if fish is spoiled. Cats cannot differentiate between good fish and fish that have expired. This notion applies to all fish – leftovers from dinner, a fish you caught, or even your cat’s favorite fish-filled cat food. All of these could lead to your cat getting food poisoning and should be out of their reach.

While it’s true that fish are slimy and odorous by nature, expired fish will feature these qualities to another level. To determine if your fish is expired, look for a slimy coating covering most of it. If it’s a raw fish, the wetter the exterior feels, the worse it is. As fish start to go bad, the smell of fish will only increase and eventually turn to an off-meat smell. Additionally, if the fish has a “milky” color, meaning it’s moving from a brighter pink color to a white-pink combination, it likely has gone bad.

So, while your cat can’t tell the difference between good and bad fish, you can use these tips to help ensure they will never eat expired fish.

Can I give my cat expired tuna

No. While tuna is an excellent addition to a cat’s diet, it should not be given to them if it’s expired. Since tuna is an oilier fish, there are more harmful bacteria present. This bacteria is why spoiled tuna is likely to give cats severe food poisoning.

When it comes to canned tuna, things are a little different. In most cases, the expiration is not actually printed on the label. Most experts say you can have tuna past the expired date, but its still not a good to subject your cat to that.

Can cats eat expired salmon

No, cats should not eat expired salmon. Salmon can be a great supplement to any cat’s diet. It can be a great treat for them or given as a reward for good behavior in small doses. However, if that salmon has expired, it will no longer serve as a reward. It will come off as a punishment since they are likely to become very ill and may need a visit to the vet to cure them.

If you’re about to serve your cat Salmon and are unsure if it’s gone bad, look at the following:

• Discoloration of the flesh
• Dark spots
• Slimy residue

Remember, fresh Salmon almost always has beautiful developed lines in the flesh. There is no off scent and the texture feels firm. The color is also much brighter and less dull.

Final Take

Cats, like humans, can come down with severe food poisoning, so be sure to keep any expired fish away from them. Do not feed it to your cat; it is not safe for them to eat it either. If you find yourself cleaning out your fridge and happen upon some old fish that you wonder if you can pass onto your cat, no matter what kind it is, be sure to throw it away. 

If your cat does ingest some expired fish by accident, they may experience food poisoning symptoms like fever, dehydration, lethargy, and more. If you find that their symptoms are severe or persistent, a vet visit may be needed.

So, before you give that leftover fish to your cat, really think about how long it’s been in your fridge and inspect it before you give it to them. Taking the time to do this will help keep your cat healthy and happy.