Does drinking diet pop hurt your bone health? A number of studies have shown a link between carbonated beverages and reduced bone density, as well as fractures.
But experts still aren’t sure how to explain this. One theory is that some of the ingredients in carbonated beverages either increase calcium excretion or decrease calcium absorption. Possible culprits include caffeine, phosphorus or phosphoric acid and carbonation. Another theory is that carbonated drinks don’t directly affect calcium balance, but rather that they are consumed in place of other beverages. And several studies have shown that people who drink more soft drinks are less likely to drink calcium-rich milk or fortified orange juice.
The problem affects women more than men. One study done by researchers at Tufts University in Boston found that women who drank three or more cola-based drinks a day had 4-per-cent lower bone density at the hip than those who did not.
It is important to realize that this is not conclusive evidence. But there does appear to be a link between pop consumption and osteoporosis.
This means if you drink carbonated soft drinks, you must ensure that you are getting adequate calcium from other sources, like supplements.