In response to my hypothesis about drinking diet soda and gaining weight, a dietician (who just happens to be a high school classmate who I haven’t heard from in 25 years who contacted me via Facebook recently) let me know that consuming colas in particular, is also associated with increased risk of bone fracture and osteoporosis.
The study was done at Tufts University and I have reprinted the findings below.
So in addition to catching up with a prior high school classmate, I’ve just learned that my 2 Cokes per week splurge is not only bad for me because of the high fructose corn syrup, but it also can increase the risk of my getting osteoporosis. Hmm, maybe it really is time to just get more sleep.
Tufts University study’s findings:
“Colas, but not other carbonated beverages, are associated with low bone mineral density in older women: The Framingham Osteoporosis Study1,2,3″
by Katherine L Tucker, Kyoko Morita, Ning Qiao, Marian T Hannan, L Adrienne Cupples and Douglas P Kiel. Received for publication September 23, 2005. Accepted for publication June 12, 2006.
“Osteoporosis and related fractures represent major public health problems. With the aging of the population, the health care burden from fractures is expected to increase dramatically during the next few decades. The lifetime risk of fracture exceeds 40% for women and 13% for men, and hip fractures have been associated with an excess mortality of up to 20% (1, 2). Most survivors require costly long-term nursing home care (2). It is, therefore, of great importance to identify modifiable risk factors for osteoporosis. Increasingly, numerous dietary behaviors and components have been identified as important contributors to the risk of loss of bone mineral density (BMD) with aging (3). Soft drink consumption has increased rapidly in the general population in recent years. This behavior has been found to be associated with low BMD and fractures in adolescent girls (4-6), although some suggest that such associations may be due to displacement of milk consumption more than to any direct effect of soft drink components (7). Few studies have examined these associations in adults.
In addition to the displacement of more nutrient-dense beverages, there are several reasons to hypothesize that carbonated soft drinks, and colas in particular, may be associated with lower BMD. Caffeine is an ingredient in most colas and has been identified as a risk factor for osteoporosis (8-10). Furthermore, colas contain phosphoric acid, which was shown to interfere with calcium absorption and to contribute to imbalances that lead to additional loss of calcium (11). It has also been suggested that the high fructose corn syrup used to sweeten carbonated beverages may negatively affect bone (12).”

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