I was standing in the beverage aisle at Costco—half out of patience, half out of hope—searching for my usual sparkling water. Not because it’s magic or detoxifying or anything ridiculous like that. I just like the fizz. It breaks up the flat water monotony. But if I drink too much, it gives me GERD. So I’m picky. Anyway, I hadn’t seen it in weeks. I was scanning the shelves like a hawk, when a woman I knew—a local restaurant owner—walked by. I asked if she’d seen it in stock somewhere else. Before I could finish, she spotted the brand I’d brought from home and said: “Oh my god, that one? That stuff is TERRIBLE for you. I’d never drink that. It’s so highly mineralized—it’s the worst one.” And I just stood there, blinking. I wasn’t even buying it. But somehow, I was now under nutritional cross-examination for a bottle of Read More . . .