“The result: None of the kids, even the “sugar-sensitive” ones, showed any meaningful differences after following each diet. “Even when the intake exceeds typical dietary levels, neither dietary sucrose nor aspartame affects children’s behavior or cognitive function,” the researchers concluded. The “sugar high” had been officially debunked. The 1994 results have been replicated in several subsequent studies and yet—I’ve never attended a child’s birthday party where someone didn’t invoke the specter of the sugar high as soon as the cake is cut.”