Gaby
Do you prefer sparkling or still water? At a café or restaurant, most of us choose quickly. But is that choice linked to our health, and do we really understand the pros and cons of carbonated versus noncarbonated water?
Researchers from Bond University in Australia—Christian Moro, an associate professor in the School of Natural Sciences, and Charlotte Phelps, a senior research fellow—shed light on these and other aspects of water consumption.
The bubbles in sparkling water come from adding carbon dioxide to filtered water. That reaction produces carbonic acid, making sparkling water more acidic (pH around 3.5) compared with still water (pH about 6.5 to 8.5).
Which Water is the Healthiest?
Water is the best way to hydrate. Studies show that for hydration, both still and sparkling water are equally effective. Both types are also a better choice than artificially sweetened drinks.
Some people think bottled water is healthier. In countries like Australia, however, tap water is rigorously monitored. Unlike bottled water, tap water has the added benefit of fluoride, which helps protect children and adults from cavities.
Isn’t Sparkling Water Bad for Teeth and Bones?
There is no evidence that sparkling water harms bones, although consuming large amounts of sugary soft drinks is associated with an increased risk of fractures.
Sparkling water is more acidic than still water, and acid can soften tooth enamel. But this usually isn’t a major concern unless the sparkling water is mixed with sugar or citrus, both of which raise acidity and can damage teeth.
In most cases, you’d have to drink a very large amount of sparkling water over a long period for it to noticeably harm your teeth.
How Does Drinking Water Affect Digestion?
A common misconception says drinking water during meals harms digestion. In theory, water could dilute stomach acid that breaks down food, but in practice drinking water does not cause problems; the digestive system adjusts to the food’s consistency.
Some carbonated drinks can cause stomach upset because gas buildup may lead to bloating, cramps, and discomfort. For people with an overactive bladder, the acidity may also worsen urinary symptoms, according to ScienceAlert.
Is Cold Water Really Harder to Digest?
You’ve chosen still or sparkling water. But what about temperature? There is very little research on the effects of cold water on the body. Some evidence suggests cool water can suppress stomach contractions and slow digestion, while ice-cold water may constrict blood vessels and cause cramps.
Other studies indicate that drinking cold water can temporarily boost metabolism, since the body needs to expend energy to warm it to body temperature. That effect is minimal and unlikely to produce significant weight loss.
So, Which Water Comes Out on Top?
The bottom line: water offers many health benefits. Sparkling or still, it’s the healthiest beverage.
If you’re concerned about enamel, rinse your mouth with still water after drinking sparkling water to help neutralize acidity.
