A. Perhaps. There’s research that links drinking certain types
of soda with weaker bones—but carbonation doesn’t seem to be the
problem. Nutrition experts once believed caffeine could be the
culprit. In a 2001 study out of Creighton University in Omaha,
Nebraska, people lost measurable amounts of calcium after
drinking caffeinated sodas. Drinking decaffeinated sodas didn’t
appear to have the same effect. As it turned out, though, people
tended to make up for the losses by excreting less calcium later
in the day. The researchers concluded that if sodas harm bones
it’s probably because people drink them in place of milk. But
another study, reported in 2006 by researchers at Tufts
University in Boston, suggests that colas, specifically, might
be problematic. Among the 1,413 women whose dietary records and
bone-density scans they reviewed, those who drank a diet or
regular cola at least three times a week over five years had
significantly lower bone densities than those who sipped cola
once a month or less. No su