Yes, dogs can eat eggshells—but only when they are properly prepared. Eggshells must be cooked, sterilized, and ground into a fine powder before feeding. Whole or raw eggshells can be dangerous and should never be given to dogs.
Are eggshells safe for dogs?
Eggshells are safe for dogs only when used correctly. They should be given in very small amounts as a calcium supplement and not as a regular food. Uncrushed or raw eggshells can cause choking, digestive irritation, or bacterial infection.
Nutritional value of eggshells for dogs
Eggshells are composed mainly of calcium carbonate, making them a natural calcium source for dogs.
- Calcium – Supports healthy bones, teeth, muscles, and nerve function.
- Magnesium (trace) – Helps with muscle and nerve activity.
- Phosphorus (small amount) – Plays a role in bone health and energy metabolism.
Eggshells do not provide meaningful protein or amino acids and should not be considered a complete nutritional source.
Raw eggshells vs cooked eggshells
Cooked eggshells are safer than raw eggshells. Raw eggshells may carry harmful bacteria such as salmonella, which can cause food poisoning in dogs. Cooking helps reduce bacterial risk and makes the shells safer to process.
How to prepare eggshells for dogs safely
- Rinse eggshells thoroughly to remove residue.
- Boil the shells for 10 minutes to sterilize them.
- Allow the shells to dry completely.
- Grind into a fine powder using a blender or mortar and pestle.
- Store the powder in an airtight container.
Only powdered eggshells should be added to your dog’s food.
How much eggshell powder can dogs have?
Eggshell powder should be given sparingly and not every day.
- Small dogs: a small pinch
- Medium dogs: ¼ teaspoon
- Large dogs: ½ teaspoon
Limit eggshell supplementation to 2–3 times per week. Dogs eating complete commercial dog food usually do not need additional calcium.
Risks of feeding eggshells to dogs
- Choking hazard from sharp or uncrushed pieces
- Digestive issues such as constipation or blockage
- Bacterial contamination from raw shells
- Calcium excess leading to kidney or skeletal problems
Special care for puppies and pregnant dogs
Puppies and pregnant dogs require extra caution. Excess calcium in puppies can interfere with proper bone development, especially in large breeds. In pregnant dogs, too much calcium can disrupt natural calcium regulation and increase the risk of eclampsia after birth.
Eggshell supplementation for puppies or pregnant dogs should only be done under veterinary guidance.
Final verdict: Can dogs eat eggshells?
Dogs can eat eggshells only when they are cooked, finely powdered, and given in small amounts. Eggshells can serve as an occasional calcium supplement but are unnecessary for most dogs on a balanced diet. Improper use can cause more harm than benefit.
Common questions pet parents ask
Can too much eggshell be harmful to dogs?
Yes. Excess calcium can lead to kidney strain, skeletal issues, and digestive problems. Eggshells should never be given daily or in large amounts.
Do dogs on commercial food need eggshell supplements?
Most dogs eating a complete, balanced commercial dog food do not need additional calcium from eggshells.
Can puppies eat eggshells?
Puppies should not be given eggshells without veterinary guidance. Too much calcium can interfere with proper bone development, especially in large-breed puppies.
Can dogs eat eggshells every day?
No. Eggshells should not be given daily. Regular calcium supplementation can lead to calcium imbalance and long-term health problems. Eggshell powder is best limited to 2–3 times per week, only when needed.
Can eggshell powder replace calcium supplements for dogs?
Eggshell powder can provide calcium, but it should not replace prescribed calcium supplements unless advised by a veterinarian. The dosage and balance of nutrients matter, especially for growing or pregnant dogs.
Can eggshells help dogs with weak bones or joint problems?
Eggshells provide calcium, which supports bone health, but they do not treat joint diseases or arthritis. Excess calcium will not strengthen joints and may cause harm if overused.
