Caffeinated water is a healthier alternative to other caffeinated drinks, containing purified water and caffeine extract. It hydrates and increases energy, with a caffeine content similar to cola or black tea. Excessive consumption can cause side effects, but moderate intake is not dehydrating.
As the name implies, caffeinated water is a drink consisting of water to which caffeine has been added. It is meant to be a healthier alternative to common caffeinated beverages like coffee, sodas, and sports drinks. While many researchers believed that caffeine had a dehydrating effect, this theory has been largely disputed, supporting claims by caffeinated water makers that the product simultaneously hydrates and increases energy. However, it is important to note that, as with any caffeinated product, consuming too much caffeinated water can cause unwanted side effects.
Most caffeinated water products contain purified tap water or spring water to which a tasteless caffeine extract, often derived from coffee beans, has been added. Its caffeine content typically falls to around 3 to 6 milligrams per ounce (29.57 ml), which is about the same amount found in cola or black tea. What sets most caffeinated waters apart from many other popular caffeinated beverages is that they do not have additional additives such as corn syrup, sugar, artificial colors or flavors. As a result, this type of water is frequently promoted by its manufacturers as a healthier, calorie-free alternative to other caffeinated beverages.
Many health experts once shared the belief that caffeine was a potent diuretic, or a substance that increased urine output, which could cause dehydration. As of the early 2000s, however, this belief has been challenged by a number of studies that have suggested that, when consumed in small to moderate amounts, caffeine does not demonstrate noticeable diuretic properties. While significant caffeine consumption can lead to dehydration, this effect is estimated to occur only when daily intake exceeds 500 milligrams of caffeine. Such research seems to lend credence to claims by caffeinated water manufacturers that their products simultaneously increase hydration and energy levels.
It should be noted that, as with any caffeinated product, consuming excessive amounts of caffeinated water can cause unwanted side effects, including restlessness, insomnia, rapid heartbeat, nausea, and irritability. Additionally, those who consume large amounts of caffeinated water daily may find that they enter a withdrawal period if they reduce their intake of the product. This type of withdrawal is often characterized by headaches, sluggishness, and difficulty concentrating. While caffeinated water may be a healthier option than sugary sodas or artificially flavored sports drinks, consumers should avoid excessive use of the product to prevent caffeine-related side effects.
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