Water makes up a majority of your body weight and is involved in many important functions. This includes flushing out waste from your body, regulating your body temperature, and helping your brain function.

Alkaline water is slightly less acidic than regular drinking water and contains alkaline minerals. However, not all of its purported benefits are supported by research.​

There are many options for what to drink, but water is the best choice for most people who have access to safe drinking water. It is calorie-free and as easy to find as the nearest tap.