Are Eggshells a Good Source of Calcium?
Monica Reinagel, MS, LD/N, CNS
Q. An article in Poultry Science says “Chicken eggshell powder might be an attractive source of calcium for human nutrition.” Could I put washed, uncracked eggs, shell and all, into a blender and liquify them, then cook the mixture like normal scrambled eggs?
Answer. You could. I can’t guarantee that you’ll find the result palatable but as long as the eggs are thoroughly cooked, it would be a safe way to add calcium to your diet. (Eggshells can carry harmful salmonella bacteria that might not be removed by washing.)
There’s probably more potential for eggshells to be used as a source for calcium supplements than as a new menu item. But, to the extent that this would make use of a by-product that might otherwise get thrown away, it sounds reasonable. Personally, I prefer to add my eggshells to the compost bin. Increasing the calcium content of my garden soil can increase the calcium content of the vegetables I grow.
Here are some other calcium-rich foods that I think might taste a little better: Best Sources of Calcium
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About the Author
Monica Reinagel is a board-certified licensed nutritionist, author, and the creator of one of iTunes’ most highly ranked health and fitness podcasts. Her advice is regularly featured on the TODAY show, Dr. Oz, NPR, and in the nation’s leading newspapers, magazines, and websites. Do you have a nutrition question? Call the Nutrition Diva listener line at 443-961-6206. Your question could be featured on the show.