Teeth chronicle infant diet

Enamel can reveal when children switched from mother's milk to solid foods

By Sid Perkins, 17:45 PM May 5, 2008

Chemical analyses of teeth, possibly including fossilized ones, can provide clues about the age at which a child was weaned, a milestone in life that may reveal information about how the human species and its predecessors evolved.

Unlike living bone, which contains a substantial amount of protein such as collagen, tooth enamel is about 98 percent mineral. Therefore, atoms in the enamel — especially those deep within a tooth — don’t tend to swap with those in the environment as they ...

Source URL: https://www.sciencenews.org/article/teeth-chronicle-infant-diet