*Do you take your coffee black, or do you put a little something in it? Many Americans reach for an artificial sweetener if they’re concerned about their waistlines. But it turns out, the health benefits of sugar substitutes aren’t so simple. We spoke with University of Manitoba assistant professor Meghan Azad about her meta-analysis (a study of studies) on how artificial sweeteners could actually contribute to weight gain, diabetes, and heart disease. Then, a conversation with University of California, Davis professor of American studies Carolyn Thomas about her book, Empty Pleasures: The Story of Artificial Sweeteners from Saccharin to Splenda. *