We’re of the mindset that clean water is safe water. Unfortunately, that can’t be said of those trying to make a buck by selling the “health conscious” on what they’re calling “raw water”: untreated H20 (often sourced from who knows where). While straight-from-the-spring water can be safe, experts point out that “the cleanliness of the water depends on things you can't see—whether herds of elk or moose or caribou have relieved themselves in a stream that you're drinking from and left it full of parasites” (that can cause a very unpleasant gut disease called giardia). Or “whether there has been groundwater contamination from naturally occurring elements such as arsenic, radon or uranium, or from pesticides and other chemicals.” So think twice before paying for a “health” product that might just make you sick.