As UAE residents turn to sports drinks, electrolyte beverages, iced coffees and flavoured sparkling waters to stay cool and hydrated during the summer months, dental experts at RAK Hospital are cautioning that some hydration choices may unintentionally affect oral health. While preventing dehydration remains essential, dentists emphasise that the type of drink and how it is consumed can significantly impact teeth.
The UAE’s extreme summer temperatures make adequate hydration a medical necessity. However, many beverages marketed for hydration contain acids and, in some cases, sugars that, when consumed frequently, may contribute to enamel erosion and increase the risk of dental caries over time.
Dr. Nima Sabzchamanara, General Dentist at RAK Hospital, explains that many people are unaware that acidity, rather than sugar alone, plays a major role in damaging teeth. “Many people assume that sugar-free or zero-sugar hydration drinks are automatically safer for their teeth. However, acidity—not just sugar—can contribute to enamel erosion. Frequent exposure to acidic drinks, particularly when they are sipped throughout the day, increases the time teeth are exposed to acid and may raise the risk of enamel erosion and tooth sensitivity”, said Dr. Nima.
Water remains the best choice for maintaining hydration and protecting oral health. Many commercially available sports and electrolyte drinks are acidic, with pH values often below the critical threshold for enamel demineralisation (approximately pH 5.5).
Although these drinks can be beneficial for replacing fluids and electrolytes after prolonged exercise, heavy sweating or intense physical activity, they are generally unnecessary for people performing light daily activities and should not replace water as the primary source of hydration.
“Sports drinks have an important role for endurance athletes, people exercising vigorously for extended periods, outdoor workers exposed to prolonged heat, or individuals experiencing significant fluid and electrolyte loss. However, for most healthy adults carrying out normal daily activities, plain water is usually sufficient,” Dr. Nima added.
Citric acid, phosphoric acid and other acidifying agents commonly found in sports drinks, energy drinks and flavoured beverages can soften enamel. Unlike dental decay, which results from bacteria breaking down sugars and producing acids, dental erosion is a direct chemical process where acids gradually dissolve the mineral structure of teeth.
One of the most overlooked summer habits is carrying a bottle of sports drink, iced coffee or flavoured beverage and taking small sips throughout the day. Every sip creates an acidic challenge inside the mouth. Normally, saliva helps neutralise acids within 30 to 60 minutes, but frequent sipping repeatedly lowers oral pH before saliva has enough time to restore a neutral environment.
“From a dental perspective, consuming an acidic drink over a shorter period is generally less harmful than sipping it continuously over several hours. Constant exposure does not allow the mouth’s natural protective mechanisms enough time to recover,” explained Dr. Nima.
Many popular summer beverages—including iced tea, iced coffee, flavoured sparkling water, lemonade, fruit smoothies and sports drinks—feel refreshing because they are cold. However, temperature does not reduce acidity. Even drinks without added sugar may contribute to enamel erosion if consumed frequently. Many commercially prepared iced coffees also contain added syrups or sugars, which may further increase the risk of tooth decay.
Dental experts recommend several practical strategies to reduce the risk:
- Choose water as your primary drink whenever possible.
- Reserve sports drinks for prolonged or intense physical activity.
- Drink acidic beverages with meals rather than sipping them throughout the day.
- If using a sports drink, consume it in one sitting instead of taking frequent small sips.
- Rinse your mouth with plain water afterwards.
- Wait at least 30 minutes before brushing after consuming acidic drinks, allowing enamel to reharden naturally.
- Use fluoride toothpaste twice daily to strengthen enamel.
Early signs of enamel erosion are often subtle and may include:
- Increased sensitivity to cold drinks.
- Teeth appearing smoother or shinier than usual.
- Yellowing teeth as enamel becomes thinner and underlying dentin becomes more visible.
- Rounded edges on front teeth.
- Small cupped depressions on the chewing surfaces of teeth.
These changes may develop gradually and are often irreversible once significant enamel has been lost.
“Hydration should never be compromised during the UAE summer. The goal is not to avoid sports drinks when they are genuinely needed, but to understand when they are beneficial and when plain water is the better choice. Choosing water more often and avoiding frequent sipping of acidic drinks are simple habits that can help protect long-term oral health”, said Dr. Nima.
Staying hydrated during the UAE summer is vital, and residents should not reduce fluid intake due to concerns about their teeth. Instead, dentists recommend smarter hydration habits that support both general health and oral health.
Water remains the safest option for both the body and teeth. Sports and electrolyte drinks can be valuable in specific circumstances, particularly after prolonged physical exertion, but frequent consumption, prolonged sipping and reliance on acidic beverages throughout the day may increase the risk of enamel erosion and tooth sensitivity.
With a few simple adjustments—choosing water more often, limiting unnecessary sports drinks and avoiding constant sipping—residents can protect both their health and their smiles during the hottest months of the year.
For more information and specialist guidance, visit RAK Hospital
