Sixty-nine percent of the participants who were violent by the age of 34 had eaten sweets and chocolates almost every day during childhood, compared with 42 percent who showed no aggressive behavior, the study found. The association was consistent even after ecological, childhood and other control variables were included, according to the researchers.
“Our favored explanation is that giving children sweets and chocolate regularly may stop them learning how to wait to obtain something they want,” Moore said in a statement. “Not being able to defer gratification may push them toward more impulsive behavior, which is strongly associated with delinquency.”
Source: here