Can Cats Eat Eggs? Scrambled vs Boiled, Raw Risks & Biotin Guide (2026)

27610 March 20263 min read
🔄Last Updated: 18 March 2026Originally published: 10 March 2026

✅ Quick Answer: YES — cooked eggs are safe and nutritious for cats.
Eggs are packed with protein and amino acids. Always cook them plain — scrambled, boiled, or poached. Never feed raw eggs due to salmonella risk and biotin blocking.

Key Facts

Question Answer
Cooked eggs? ✅ Safe — excellent protein source
Raw eggs? ❌ Risky — salmonella + avidin blocks biotin
Safe amount ⅓ – ½ egg, 1–2 times per week
Best preparation Plain scrambled or hard-boiled
Egg shells? ✅ Finely ground — good calcium source

Egg Preparation Guide for Cats

Preparation Safe? Notes
Hard-boiled ✅ Best Easy to portion, no added fat needed
Scrambled (plain) ✅ Great No butter, milk, oil, or seasoning
Poached ✅ Good No added ingredients
Soft-boiled ⚠️ Caution Runny yolk may still harbour bacteria
Fried ❌ Avoid Too much oil/butter — pancreatitis risk
Raw ❌ Avoid Salmonella, E. coli, avidin blocks biotin
With seasoning ❌ Never Salt, pepper, garlic, onion — all harmful

Why Raw Eggs Are Risky

1. Salmonella & E. coli

Raw eggs can carry harmful bacteria. While UK eggs with the Red Lion stamp have very low salmonella risk (hens are vaccinated), a small risk always remains. Cooking eliminates this risk entirely.

2. Avidin & Biotin Deficiency

Raw egg whites contain a protein called avidin that binds to biotin (Vitamin B7) and prevents absorption. Over time, this can lead to:

  • Dull, flaky coat
  • Skin problems
  • Lethargy
  • Metabolic issues

Cooking denatures avidin, making biotin fully available. Egg yolks are actually rich in biotin — another reason to cook the whole egg.

Nutritional Benefits

  • Complete protein — all essential amino acids for cats
  • Taurine — crucial for heart and eye health (cats can’t produce enough)
  • Vitamins A, B6, B12, D, E — immune support, bone health, energy
  • Iron & selenium — supports immune system and thyroid
  • Healthy fats — supports skin and coat condition

Portion Guide

Cat Size Egg Amount Frequency
Kitten 1 teaspoon (cooked, mashed) Once per week
Small adult (under 4 kg) ⅓ egg 1–2 times per week
Average adult (4–6 kg) ½ egg 1–2 times per week
Large breed (over 6 kg) ½ – ¾ egg 1–2 times per week

One egg contains ~90 calories — a significant portion of a cat’s ~200–250 daily calories. Adjust main meals accordingly.

Frequently Asked Questions

Can cats eat scrambled eggs?

Yes — plain scrambled eggs without butter, milk, or seasoning are one of the best ways to serve eggs to cats.

Can cats eat raw eggs?

Not recommended. Salmonella risk and avidin (in raw whites) blocks biotin absorption. Always cook eggs thoroughly.

Are egg shells safe for cats?

Yesfinely ground egg shells are a good calcium supplement. Bake shells at 180°C for 10 minutes, then grind to powder. Sprinkle a pinch on food.

Can kittens eat eggs?

Yes — small amounts of cooked, mashed egg. Ensure eggs don’t replace their nutritionally complete kitten food.

⚕️ Medical Disclaimer: Cats with kidney issues or egg allergies should avoid eggs. Consult your vet before dietary changes.

More Food Safety Guides

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Emma Blackwood

RVN, DipHE CVN

Emma is a Registered Veterinary Nurse with a Diploma in Companion Animal Veterinary Nursing. She spent eight years at a veterinary hospital before specialising in pet nutrition. Emma reviews our food guides, diet advice, and "can pets eat" content.

📋 Veterinary Nutritionist 🎯 Pet Nutrition & Dietetics