Water is good for you, nobody is arguing that. While many people are content to drink plain old H2O, there’s a larger community who swear by functional waters—basically, good old H2O with added special ingredients (like herbal ingredients, vitamins, and antioxidants) that can improve our immune system while satisfying our thirst. One of the foremost prominent functional waters is natural alkaline water, which is quite hard to get unless you live in the hilly regions. Here’s a quick fac...