How and Why to Rid Sugar From Your Diet

Robert Lustig creates a shopping guide to spot sugar in your food.

Robert Lustig creates a shopping guide to spot sugar in your food.

[Read: GMOS: A Breakthrough or Breakdown in U.S. Agriculture?]

For his part, there's "no such thing as a sugared beverage" in his home. "We have milk, we have water and occasionally we have some alcoholic drinks when we have friends over," he says. "There is no reason to drink your calories." To ensure sufficient fiber, the Lustigs have salad with every meal, which typically consists of a protein and green vegetables and whole-grain bread instead of white rice, pasta and potatoes. For dessert, it's whole fruit, except for weekends, when they treat their daughters, ages 8 and 14, to something "a little more elaborate," he says.

"We have to get back to dessert being once a week, not once a meal," Lustig says. As he writes, "Sugar is reward. Sugar is fun, but if every meal is fun, then no meal is fun. And I promise, you won't be having fun taking your insulin shots while you're on dialysis."

To change the food culture, and the food supply, he encourages consumers to vote with their mouths and wallets. "We, as a society, have to reduce availability, and we cannot do that right now without the food industry helping us do it," he says. "If you won't buy it, they won't sell it."

[Read: Seeking a More Perfect Food Supply.]