From "Food and Behavior"

I discovered that a huge proportion of the people who were getting into trouble were junk food junkies and consuming 50 to 150 teaspoons of sugar daily. May were alcoholics or heavy drinkers, and were simultaneously living on booze and sugared snacks… If these men and women were living on processed foods and snacks, how could they get any nourishment? If there were undernourished, how could their central nervous systems be functioning properly? Finally, if their brains and nerves were malfunctioning, how could one expect them to behave sanely in society?
— Barbara Reed Stitt, Food and Behavior, A Natural Connection