01/16/2009 Submitted in the Senate, considered, and agreed to without amendment and with a preamble by Unanimous Consent. (consideration: CR S658-659; text as passed Senate: CR S658-659; text of measure as introduced: CR S656) (All Actions)
Coffee and Tea Effects on Teeth. Coffee and tea are especially tough on teeth, because tannic acid scrapes into the pits and grooves of tooth enamel and can stain teeth. The amount of coffee a person consumes daily does affect the color of their teeth.
I'll bet you didn't know that caffeine leaches calcium from your body. Three cups of coffee remove 45 mg of calcium. Top that with what soda does. It's not only got a load of caffeine but phosphoric acid, which blocks the absorption of calcium. And finally, watch out not to be eating too much protein. Yep, it also causes the body to lose calcium.