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2001 SEP 13 - (NewsRx.com & NewsRx.net) -- Consumption of carbonated beverages has been associated with increased risk of bone fracture both earlier and later in life, yet the contributions of the individual components of these beverages to calcium loss is unclear.
The per capita consumption of carbonated beverages has risen dramatically, making them the preferred beverage of women 20-40 years old, many of whom already have an inadequate daily intake of calcium.
In the August 2001 American Journal of Clinical Nutrition, researchers report on their investigation of the effect of caffeinated and noncaffeinated beverages on urinary calcium excretion in a group of 30 women with an average age of 31 years. The subjects habitually drank from two to seven 12-ounce cans of carbonated beverages daily; 27 drank predominantly colas.
Four types of beverages were evaluated. One caffeinated and one noncaffeinated beverage contained citric acid as an acidulant, and two cola-type beverages were either caffeinated or noncaffeinated and contained phosphoric acid as an acidulant. Milk and water were also tested as control beverages.
Small but significant increases in urinary calcium excretion ...