Yes, cats can eat eggs — cooked eggs are generally considered safe and can be a decent source of protein for your cat. Raw eggs are a different story and carry real risks, so skip those entirely. As always, eggs should be a small addition to your cat's diet, not a staple.
What Makes Eggs a Reasonable Treat for Cats
Cats are obligate carnivores, which means animal protein is the foundation of everything their bodies need to function. Eggs happen to be one of the most complete protein sources available — they contain all the essential amino acids, plus nutrients like B12, riboflavin, and selenium.
The fat content in eggs is also relatively easy for most cats to digest, and many cats simply enjoy the taste. If you're looking for a single-ingredient, low-fuss protein snack, a small piece of cooked egg is a reasonable choice for a healthy adult cat.
That said, eggs are calorie-dense. A whole large egg has around 70–80 calories, which is significant when you consider that many cats only need 150–200 calories per day total. A small piece — think a teaspoon or two of cooked egg — is a reasonable portion. Definitely not a daily whole egg.
Why Raw Eggs Are Off the Table
Raw eggs carry two specific risks that make them worth avoiding entirely.
The first is Salmonella. Raw eggs can harbor this bacteria, and while cats can sometimes handle bacteria that would floor a human, Salmonella infection is a genuine risk. Symptoms include vomiting, diarrhea, lethargy, and fever — and it can be passed to humans in the household too.
The second is a protein in raw egg whites called avidin. Avidin binds to biotin (vitamin B7) in the digestive tract and blocks its absorption. Biotin plays a role in skin, coat, and metabolic health. Feeding raw egg whites regularly could lead to a biotin deficiency over time. Cooking the egg white deactivates avidin, which is why cooked eggs don't carry this risk.
Neither risk is worth it when cooked eggs offer the same nutritional upside without the downsides.
How to Serve Eggs to Your Cat
Keep preparation simple. The safest and best options are:
- Scrambled: No butter, no oil, no salt, no seasonings. Just egg cooked through in a dry or lightly greased pan.
- Hard-boiled: Easy to portion and easy to serve. Let it cool first and remove the shell.
- Poached: Another clean option — just plain, fully cooked egg in water.
What to avoid: eggs cooked in butter or oil, eggs seasoned with garlic, onion, chives, or salt, and any egg dish that includes ingredients like cheese, cream, or herbs. Garlic and onion in particular are toxic to cats, even in small amounts.
Remove the shell before serving. Eggshell is sometimes mentioned as a calcium supplement, but the edges can be sharp, and it's not a reliable or necessary addition if your cat is eating a complete commercial diet.
How Often Can Cats Have Eggs?
Think of cooked egg as an occasional treat rather than a regular part of the rotation. Once or twice a week in small amounts is a reasonable ceiling for healthy adult cats. More than that, and you risk tipping the calorie balance or crowding out the nutrients your cat is already getting from their complete diet.
If your cat is on a prescription diet or has a known health condition — kidney disease, pancreatitis, or food allergies, for example — check with your vet before adding eggs. The protein and fat content in eggs may not be appropriate for every cat.
Keeping track of what extras your cat is eating is easier than most people expect. The Pet AI Nutrition Tracker app lets you log treats and supplemental foods alongside your cat's regular meals, so you can see at a glance whether the day's calories and protein are staying in a reasonable range.
Can Kittens Eat Eggs?
Kittens have different nutritional needs than adult cats and are more sensitive to dietary changes in general. Their diets should be built around complete kitten food formulated for growth. A tiny taste of plain cooked egg is unlikely to cause harm, but it's not something to add regularly without talking to your vet first. Their calorie needs relative to body size make even small extras more impactful.
Signs Your Cat Doesn't Tolerate Eggs Well
Most cats handle a small amount of cooked egg without issue, but individual sensitivities exist. After giving your cat egg for the first time, watch for:
- Vomiting or diarrhea within a few hours
- Excessive gas or bloating
- Lethargy or loss of appetite
- Itching or skin changes (possible sign of a food sensitivity)
If any of these appear, skip the eggs and mention it to your vet at the next visit. Food sensitivities can show up even with generally safe foods.
The Bottom Line on Cats and Eggs
Cooked eggs — plain, fully cooked, no added seasonings — are a safe and protein-rich treat for most healthy adult cats in small amounts. Raw eggs are a firm no, due to bacterial risk and the biotin-blocking effect of raw egg white. Serve eggs occasionally, keep portions small, and make sure they're not replacing balanced nutrition from your cat's main diet.