There is science behind the manufacturing of the foods we eat - science that makes us crave more, eat more, want more. That science is being used every day by the food giants to keep us hooked. They use sugar, salt and liquid fat to make foods as addictive as narcotics. In this report, CBC health reporter Kelly Crowe investigates how the food industry is manipulating consumers - all for the bottom line.

From the Curio channel: News in Review.