Eggshells are composed of calcium carbonate CaCO3, which is quickly dissolved into calcium ions when it meets stomach acid, so as long as you eat it into the stomach, it will be quickly absorbed by the body. So, it can be absorbed by the body any way you eat it. The key is, the egg shell is very hard, the taste is not good, we recommend that you

1, eat when chewing some

2, grinding into powder, each time to eat a small amount of can be

.