The ideal bone-building combination of eggshell calcium and vitamin D3 was also well documented in Japanese studies. Researchers at the Japan Women’s University, Tokyo studied a combination of vitamin D3 and eggshell powder in animals with osteoporosis. Not only was the eggshell powder with vitamin D3 able to improve bone mineral density, but it did it without significantly increasing blood calcium levels.
You can use any kind of egg (chicken, goose, duck), but it is best to use organic or certified organic eggs from free-range birds. If the bird does not get proper nutrients the eggshells won’t contain the nutrients we need.
ect.. ect..