Film 'King Corn' goes to roots of food system problems

•The average amount of high fructose corn syrup consumed by an American in 1970 was 0.6 pounds. By 2000, consumption had jumped to 73.5 pounds.

•Corn-based sweeteners can be found in soft drinks, candies, cakes, cookies, lunch meats, jams, jellies, snack foods, salad dressings and ice cream.

•The 3.5 billion bushels of corn that went into sweeteners, starches and alcohol production also provided 29.4 million tons of animal feed and 3.3 billion pounds of corn oil.

•Sweeteners, starches and ethanol consumed more of Iowa's corn crop than any other use — more than 890 million bushels.

•Iowa's growing ethanol industry uses about 507 million bushels of corn.