Eggs and Eggshells for Cats: A Nutrient Boost or a Risk?

Eggs are often hailed as a "perfect protein" source for humans, but can our feline companions benefit from them too? The answer is yes, with the right preparation, portion, and care, eggs and even eggshells can be a safe, nutritious supplement to your cat’s diet.

Below, we explore the benefits, ways to incorporate, and key precautions to keep in mind when feeding eggs or eggshells to your cat.

Benefits of Eggs for Cats

1. High-Quality Animal Protein

Eggs are rich in complete protein, containing all essential amino acids your cat needs to build muscle, repair tissue, and stay strong.

2. Healthy Fats

Egg yolks contain omega-3 and omega-6 fatty acids, which can support skin health, reduce inflammation, and enhance coat shine.

3. Vitamins and Minerals

Eggs are naturally rich in vitamin A, B12, riboflavin, and selenium, important for your cat’s immune system, brain function, and energy metabolism.

Benefits of Eggshells for Cats

While the egg inside fuels muscles and organs, the eggshell is an excellent natural source of calcium, crucial for:

1. Bone strength

2. Nail and dental health

3. Balancing calcium-phosphorus ratios in homemade diets

4. Eggshell powder can be especially helpful in raw or home-cooked cat diets that may lack calcium from bones.

How to Safely Incorporate Eggs into Your Cat’s Diet

1. Cooked Eggs Only

1. Always serve scrambled, hard-boiled, or poached eggs without salt, oil, or seasoning. Raw eggs carry the risk of Salmonella and contain avidin, which interferes with biotin absorption.

2. Start with 1–2 teaspoons of cooked egg mixed into your cat’s regular food, 1–2 times a week.

2. Eggshell Powder for Calcium

1. Rinse and boil eggshells to sterilize.

2. Dry completely, then grind into a fine powder using a clean coffee grinder.

3. Store in an airtight container.

4. Add 1/4 teaspoon of eggshell powder per pound of food (adjust based on your cat's diet and size).

5. Always consult a vet before adding calcium to ensure proper balance, especially if your cat is already on a commercial or prescription diet.

Precautions & Things to Avoid

1. Avoid raw eggs due to the risk of foodborne illness and biotin deficiency.

2. Don’t feed the entire egg daily, too much can cause protein imbalance or GI upset.

3. Avoid added fats, salt, butter, or milk in preparation. Cats don’t need these and may get diarrhea.

4. Check for allergies or intolerances. Introduce eggs slowly and monitor for vomiting, itching, or digestive issues.

5. Consult your vet before making eggs a regular part of your cat’s diet, especially if they have kidney, liver, or pancreatic issues.

Final Thoughts

Eggs and eggshells can be a valuable natural supplement in your cat’s diet, offering protein, essential nutrients, and calcium, when given correctly and in moderation. Think of them as a treat or topper, not a staple.

As always, every cat is different. Monitor your feline's response and speak with your vet to tailor their nutrition to their individual needs.