Dear pet parent,
Eggshell is a natural and effective source of calcium when properly prepared. Below is a safe, veterinarian-approved method for preparing it at home.
Step 1: Clean the eggshells
Use clean chicken eggs (preferably organic or farm-raised). Rinse the shells thoroughly under hot water to remove any remaining egg white or inner membrane. This step is crucial to prevent bacterial contamination (e.g., Salmonella).
Step 2: Sanitize the shells
Choose one of the following methods to ensure the shells are safe for use:
Oven-baking:
Spread the shells on a baking tray lined with parchment paper and bake at 150–180°C (300–350°F) for 10–15 minutes.
Dry pan roasting:
Place the shells in a dry skillet and heat them over medium heat for about 10 minutes, stirring frequently.
Boiling + drying (optional but safest):
Boil the shells for 5 minutes, then dry them in the oven or pan as above. This method offers maximum disinfection and is recommended for pets with weakened immunity.
Step 3: Grind into fine powder
Once the shells are fully dry and cooled, grind them using a coffee grinder, food processor, or mortar and pestle. The final texture should be as fine as flour to ensure safe digestion and proper absorption.
Step 4: Storage
Store the powder in a clean, airtight glass or plastic container, in a cool, dry place (not in the refrigerator). Use within 2 months for best results.
Recommended Dosage
1 gram of eggshell powder provides approximately 380–400 mg of elemental calcium
For an average-sized adult cat (4–6 kg), the typical daily need is 0.8 to 2 grams, depending on the diet’s protein and phosphorus content
For precise dosing, especially in pets with kidney disease or other medical conditions, I’d be happy to help you calculate based on your pet’s recipe
