Bone broth is one of the richest and most bioavailable sources of minerals and other nutrients. Many people have claimed to completely reverse mineral deficiencies and other problems by making broth. I have been making lots of it and ingesting it every day. I just go to a farmer that has organic free range chickens and he sells me feet, necks and backs and I boil it all up for hours with a teaspoon of ACV..kinda like brewing ayahuasca 