If you want a little zing in your water, try Ayala’s Hint, Metromint, or Wateroos. Each bottle is free of sugar, sweeteners, preservatives and calories.
Electrolyte water is distilled (which means it’s boiled and then recondensed from the steam to kill microbes and remove minerals) and enhanced with potassium, magnesium, and calcium. According to the company’s website, it also “one-ups ma nature by adding in electrolytes for faster hydration.”
But there’s no real evidence of there being a benefit to adding electrolytes to a hydration formula, experts say, unless you’re intensely exerting yourself in blazing heat and eating isn’t an option. Otherwise, plain water is just as effective.
Don’t Forget BPA
Keep in mind that when you’re buying a bottle of water, you may also be paying for something you definitely don’t want: BPA. Many plastics are made with BPA—a hormone-disrupting chemical that’s been linked to increased risk of heart disease and obesity—which means your bottled water is swimming with the chemical, too.
And then, of course, there’s the issue of where the water actually comes from. In 2007, after receiving pressure from the nonprofit group Corporate Accountability International, Pepsi’s Aquafina confessed their true source of water was filtered tap—not a mountain spring as they’d claimed.