Finding Bones in IOM's Calcium and Vitamin D Intake Statement
“Make no bones about it,” is a phrase meant to prevent doubt. It
evolved from the language of 15th century England, when someone who
wanted to express their dissatisfaction with something didn’t “make
bones about it,” rather they “found bones in it.” This is a reference
to the unwelcome discovery of bones in soup, which makes the soup
difficult to swallow. In other words, the presence of bones is bad. No
bones are good.