The lyrics of that old song go a long way toward describing the cravings of many Americans. A bowl of sugary breakfast cereal may be followed by a mid-morning donut, a lunch time soda, ice cream at supper, and, in between, snacks of pudding, pie or pastry. Not to mention all the goodies that are part of Valentine's Day, Halloween, and the yearend holiday season. It all adds up to one massive national sweet tooth. So much so that the average American eats the equivalent of 20 teaspoons of sugar a day, according to figures from the most recent federal Continuing Survey of Food Intakes by Individuals (1994-1996). Nearly 60 percent of this intake, says the trade group The Sugar Association, is from corn sweeteners, used heavily in sodas and other sweetened drinks. Another 40 percent is from sucrose (table sugar), and a small amount comes from other sweeteners, such as honey and molasses. There's nothing unusual about craving sweets, experts say. Humans naturally have an appetite for sugary things. But in excess, sugary foods can take a toll. Large quantities add up to surplus calories, which can contribute to weight gain. In order to lose weight, the total calories from foods, especially those with lots of calories from sugars as well as fats, must be decreased and physical activity increased. As a result, many consumers seeking to control their weight have turned to sugar substitutes as one way to help lower the daily calorie count without having to give up their favorite foods. "Anything that can help people cut back on [excess] calories is good," says Adam Drewnowski, Ph.D., director of nutritional science at the University of Washington. He emphasizes that weight loss is complex and can't be attributed to any one food product. But existing studies, some of which he has conducted, show that sugar substitutes can help certain people maintain a weight loss. Because sugar substitutes, also called artificial sweeteners, are many times sweeter than sugar, it takes much less of them to create the same sweetness. The resulting calorie count of the amount used is negligible. According to a 1998 survey by the Calorie Control Council, 144 million American adults regularly consume low-calorie, sugar-free products such as artificially sweetened sodas and desserts. The Food and Drug Administration has approved four sugar substitutes-saccharin, aspartame, acesulfame-K, and sucralose-for use in a variety of foods. At least three other sweeteners are under FDA review but had not been approved at press time. Two approved sugar substitutes, saccharin and aspartame, have been the subject of ongoing controversy that, in the case of saccharin, dates back more than 20 years.
