Tooth Decay
Here’s one health effect that even the soft drink industry admits, grudgingly, has merit. In a carefully worded statement, the NSDA says that “there’s no scientific evidence that consumption of sugars per se has any negative effect other than dental caries.” But the association also correctly notes that soft drinks aren’t the sole cause of tooth decay.
In fact, a lot of sugary foods, from fruit juices to candy and even raisins and other dried fruit, have what dentists refer to as “cariogenic properties,” which is to say they can cause tooth decay.
Okay, so how many more cavities are soft drink consumers likely to get compared with people who don’t drink soda? This is where it gets complicated.
A federally funded study of nearly 3,200 Americans 9 to 29 years old conducted between 1971 and 1974 showed a direct link between tooth decay and soft drinks. Numerous other studies have shown the same link throughout the world, from Sweden to Iraq.
But sugar isn’t the only ingredient in soft drinks that causes tooth problems. The acids in soda pop are also notorious for etching tooth enamel in ways that can lead to cavities. “Acid begins to dissolve tooth enamel in only 20 minutes,” notes the Ohio Dental Association in a release issued earlier this month.
Caffeine Dependence
The stimulant properties and dependence potential of caffeine in soda are well documented, as are their effects on children.
Ever tried going without your usual cup of java on the weekend? If so, you may have experienced a splitting headache, a slight rise in blood pressure, irritability and maybe even some stomach problems.
These well-documented symptoms describe the typical withdrawal process suffered by about half of regular caffeine consumers who go without their usual dose.