TIME's "Healthland" offered parents some unexpected wisdom — from a dentist, no less: Let the kids eat candy, and lots of it, all at once. As long as you're bingeing on junk, it's best to bunch the sugar sessions together rather than spread them out, according to Mark Helpin, acting chair of Pediatric Dentistry at Temple's Kornberg School of Dentistry. It's frequency — not quantity — that's more likely to yield cavities, he said. "The longer teeth are in an acid environment, the greater the risk they will become decayed."