Sugar Substitutes

What if you could drink all the soda you wanted and never get fat? To some people—computer programmers, harried editors, every ten year old in the world—this sounds like heaven, while others shudder at the proposition. We can’t hear enough about how harmful Coca-Cola, Pepsi, and the like are to our bodies (and, thanks to all the excess caffeine, our minds) these days, and every month it seems like a new diet soda arrives to alleviate those worries while still treating our collective sweet tooth. Diet Coke, Diet Pepsi, those pink Tab cans, Pepsi One, C2, Pepsi Max—it goes on. But even these sodas, designed to appeal to the healthy-minded who can’t give up that sweet taste, may have a …