What Is Forbidden For A Cat To Eat?

Cats are curious creatures by nature, and they have a knack for getting themselves into trouble. As a responsible pet owner, it’s crucial to know what your furry friend can and cannot eat. Even though cats are obligate carnivores, they sometimes crave human food or other items that could be detrimental to their health.

From toxic foods to household items, there are a plethora of things that can harm your cat. Did you know that chocolate, caffeine, and alcohol are never safe for cats? These common human treats can cause vomiting, diarrhea, heart problems, seizures, and even death in our feline friends. It’s not just human food that poses a threat either; certain plants like lilies and poinsettias can be poisonous if ingested. Household items such as cleaning products, medications, and even string or ribbon can also be hazardous to your cat’s health.

Knowing what is forbidden for a cat to eat is essential in keeping them healthy and happy. In this blog post, we’ll delve into the various foods, plants, and household items that you should avoid giving to your cat. By the end of this post, you’ll have a better understanding of how to keep your beloved pet safe from harm.

Onions and Garlic

When it comes to onions and garlic, these vegetables should be avoided at all costs. But why are they so toxic to cats?

The culprit lies in the compounds found in onions and garlic known as disulfides and sulfoxides. These compounds can damage a cat’s red blood cells, leading to Heinz body anemia. This condition can cause lethargy, weakness, and in severe cases, even death. Raw or cooked, both forms of onions and garlic pose a risk to your cat’s health, making it best to keep them away from any meals containing these ingredients.

It’s also worth noting that other members of the allium family, such as chives and shallots, can also be harmful to cats. Therefore, it’s best to avoid feeding any of these veggies to your feline friend altogether.

If you suspect that your cat has ingested onions or garlic, stay vigilant for symptoms such as vomiting, diarrhea, pale gums, and difficulty breathing. In severe cases, immediate veterinary attention may be necessary.

Chocolate and Caffeine

There are some human foods that should never be given to cats, and two of those substances are chocolate and caffeine.

The reason why chocolate and caffeine are so dangerous for cats is due to a compound called theobromine. While humans can easily metabolize theobromine and caffeine, cats cannot break down these compounds as efficiently. As a result, even small amounts of chocolate or caffeine can be extremely toxic for cats and can cause a range of symptoms.

These symptoms can include vomiting, diarrhea, hyperactivity, tremors, seizures, and even death in severe cases. The severity of the symptoms will depend on the amount ingested and the size and health of the cat.

It’s important to note that not all types of chocolate are created equal when it comes to toxicity for cats. Dark chocolate and baking chocolate contain higher levels of theobromine than milk chocolate or white chocolate, so they are more dangerous if ingested by cats. However, it’s always best to avoid giving any type of chocolate to your cat.

In addition to chocolate, caffeine is another substance that can be toxic to cats. Caffeine is found in many beverages such as coffee, tea, and soda, as well as some medications and supplements. Even small amounts of caffeine can be dangerous for cats and cause symptoms similar to those caused by chocolate poisoning.

To keep your feline companion healthy and happy, it’s crucial to keep these substances out of reach. If you suspect your cat has ingested any amount of chocolate or caffeine, seek veterinary care immediately. It’s always better to be safe than sorry when it comes to protecting your furry friend.

High-Fat Foods

Cats have a unique metabolism that is different from humans. They require a diet that is high in protein and low in carbohydrates, and foods that are high in fat can wreak havoc on their digestive system. Bacon, cheese, butter, and fried foods are common examples of high-fat foods that should be kept far away from your furry friend.

But why exactly are high-fat foods so problematic for cats? Here are just a few reasons:

  • Obesity: Just like in humans, consuming too much fat can lead to weight gain in cats. Obesity is a serious problem for cats as it can lead to other health issues such as diabetes and joint problems.
  • Pancreatitis: This painful inflammation of the pancreas can be caused by high-fat foods. Symptoms include vomiting, diarrhea, and abdominal pain.
  • Liver disease: A diet too rich in fat can put a strain on your cat’s liver, leading to liver disease over time.

Even small amounts of high-fat foods over time can cause harm to your furry friend. Therefore, it’s best to stick with specially formulated cat food that contains all the necessary nutrients that your cat requires.

If you’re unsure about what foods are safe for your cat to eat, consult with a veterinarian or a feline nutrition expert. They can help you create a balanced and healthy diet plan for your feline friend that meets all of their nutritional needs without putting them at risk for health problems associated with high-fat foods.

Raw Eggs and Fish

It’s natural to wonder if raw eggs and fish are a healthy treat for your cat. However, as an expert in this area, I’m here to tell you that raw eggs and fish can pose serious health risks for your feline companion.

Let’s start with raw eggs. They may seem like a great source of protein, but they contain an enzyme called avidin that can block the absorption of biotin – an essential B vitamin that helps keep your cat’s skin and coat healthy. A biotin deficiency can lead to skin problems, hair loss, and even seizures. Therefore, it’s best to avoid feeding your cat raw eggs altogether.

Moving on to raw fish – another popular food option for cats. While it may seem like a healthy choice, raw fish can contain harmful bacteria such as Salmonella or E. coli or parasites like tapeworms. These can cause severe health issues such as vomiting, diarrhea, and even death. Raw fish also contains an enzyme called thiaminase that breaks down thiamine – another crucial B vitamin in cats. A thiamine deficiency can cause neurological problems such as seizures and circling behavior.

To keep your cat safe and healthy, it is important to feed them cooked eggs and fish in moderation. However, it’s still best to avoid feeding them raw versions of these foods altogether. Instead, there are plenty of commercial cat food options available that are specifically formulated to meet their nutritional needs while keeping them safe.

Dairy Products

Then listen up, because when it comes to dairy products, there’s something you need to know. While milk, cheese, and yogurt are a common staple in many households, they should not be fed to cats.

Well, it all comes down to lactose intolerance. Cats lack the enzyme needed to break down lactose, the sugar found in milk. This can lead to all sorts of digestive upset, including vomiting and diarrhea. Not exactly what any cat wants to deal with.

Even if your cat seems to tolerate small amounts of dairy products, it’s still best to avoid them altogether. Lactose-free options should also be given in moderation as they can still contain high levels of fat, which can lead to obesity and other health issues.

But that’s not all. Did you know that dairy products can also interfere with a cat’s ability to absorb nutrients from their food? This can lead to deficiencies and health problems down the line. So if you want your cat to stay healthy and happy, it’s important to provide them with a balanced and nutritious diet that doesn’t rely on dairy products.

So what are some safe and healthy alternatives? Fear not. There are plenty of options out there. For example, bone meal is a great source of calcium for cats. Canned fish like salmon or sardines (with bones) are also good options. And of course, there’s always commercial cat food that is specifically formulated with added calcium.

Human Medications

However, when it comes to administering medications, it is essential to remember that not all human medications are safe for cats. The consequences of giving your cat the wrong medication can be severe and potentially fatal.

Firstly, it’s crucial to understand that over-the-counter pain medications such as acetaminophen and ibuprofen should never be given to cats. These drugs can cause severe damage to their liver, kidneys, and gastrointestinal tract and can lead to internal bleeding. The same holds for aspirin, which can cause neurological problems in cats.

Secondly, antidepressants and anti-anxiety medications can also be dangerous to cats. Medications such as Prozac and Effexor can cause vomiting, lethargy, seizures, and even coma if ingested by felines. It’s essential to keep these medications out of reach of cats as they are often attracted to the smell and taste of pills.

Lastly, some cold and allergy medications contain decongestants such as pseudoephedrine and phenylephrine which are toxic to cats. These drugs can cause high blood pressure, rapid heart rate, tremors, and even seizures in felines.

To ensure your cat’s safety, always consult with a veterinarian before giving any medication. Your vet will recommend safe alternatives if necessary and advise you on the best course of action. It’s important to note that what works for humans may not necessarily work for cats.

Other Potentially Dangerous Foods

Cats are known for their curious nature and love of exploring their surroundings. However, this inquisitive behavior can sometimes lead them to consume foods that are harmful to their health. As responsible cat owners, it’s essential to be aware of other potentially dangerous foods that cats should avoid.

Onions and garlic are two common kitchen staples that contain compounds that can cause damage to a cat’s red blood cells, leading to anemia. This is a serious condition that can even require a blood transfusion in severe cases. It’s best to avoid feeding your cat any foods that contain onions or garlic, including onion powder and garlic powder.

Another food to keep out of reach of your feline friend is avocado. While the flesh of the avocado is not toxic to cats, it contains persin, a substance that can cause vomiting and diarrhea. Additionally, the large seed in the center can be a choking hazard.

Grapes and raisins are also on the list of potentially dangerous foods for cats. These fruits can cause kidney failure and should never be given to cats as a treat.

Raw dough containing yeast is another food that can cause harm to cats. The dough can expand in a cat’s stomach, causing bloating and discomfort. In severe cases, it can even lead to alcohol poisoning as the yeast ferments in their stomachs.

Last but not least is chocolate. While most people know that chocolate is toxic to dogs, it can also be harmful to cats. Chocolate contains caffeine and theobromine, which are both toxic to cats. Even small amounts of chocolate can cause vomiting, diarrhea, tremors, seizures, and even death.

To keep your furry friend safe and healthy, it’s best to stick with cat-safe treats and snacks instead of risking potential harm from these dangerous foods. And if you suspect that your cat has ingested any of these potentially harmful foods, it’s crucial to contact your veterinarian immediately.


Protecting your feline friend from harm means understanding what they should never eat. As a pet owner, it’s crucial to be aware of the toxic foods and household items that can cause serious health problems for cats. Knowing what is forbidden for a cat to eat is the first step in keeping them safe and healthy.

Human treats such as chocolate, caffeine, and alcohol are never safe for cats. These substances can trigger vomiting, diarrhea, seizures, heart problems, and even death in our furry companions. And it’s not just human food that poses a threat; certain plants like lilies and poinsettias can be poisonous if ingested. Even common household items like cleaning products, medications, string or ribbon can also be hazardous to your cat’s health.

Cats have unique dietary needs that require a high protein and low carbohydrate diet, making high-fat foods problematic for their digestive system. Raw eggs and fish should also be avoided due to the risk of bacterial contamination or nutrient deficiencies.

As responsible pet owners, we must keep these potentially harmful items out of reach from our curious feline friends at all times. If you suspect your cat has ingested any of these substances or is showing any symptoms of illness, seek veterinary care immediately.

By being aware of what is forbidden for a cat to eat, we can ensure they live long and healthy lives filled with love and happiness.