Not for most children. Contrary to popular belief, many studies have proven there's no link between most kids' sugar consumption and their level of activity.Some kids can be affected more than most, like those with ADHD or those who are more sensitive to blood sugar spikes—but these cases are the exception to the rule.Some researchers suggest the perceived link between sugar and hyperactivity comes from the conditions surrounding sugar intake. High-energy events, like birthday parties, often have sugar-rich treats as a centerpiece of the festivities—it’s not the sugar that’s hyping them up, pediatric dietitian Kristi L. King suggests, but the adrenaline. Further, one study illustrated that parents who think their children have consumed sugar rate their kids’ activity levels highe