A Shopping Guide

Everyone recognizes the white stuff in the sugar bowl, but what about the corn syrup in sweetened fruit drinks or the natural sugars in fruit juices, honey, maple syrup, and raw sugar? Are they any better, or worse, for our kids? And what's the scoop on artificial sweeteners? "For the most part, there are no good versus bad sweeteners, just all those choices," says University of Connecticut nutritionist Valerie Duffy. Some produce a faster rise in blood-sugar levels, however, which can then trigger rebound low-blood-sugar levels -- and thus emotional ups and downs -- in some kids and grown-ups. A guide to the leading sweeteners available, and how to ferret out a few that are hidden in foods and drinks:

Sucrose

White, powdered, brown, or raw, it's all sucrose. On product ingredient lists, it's usually just called "sugar." Also look for its close relatives dextrose, glucose, and maltose. In large amounts (more than a couple teaspoons, or about 5 grams), all produce an immediate rise in blood-sugar levels.

Calories: 16 per teaspoon, 4 per gram.

Fructose

Also called fruit sugar, it occurs naturally in fruits and fruit juices. It produces a slightly slower increase in blood-sugar levels than sucrose, so it may be helpful for people who experience "sugar rebound." But fructose may be easy for the body to convert into fat. And we're consuming very large amounts of it as high-fructose corn syrup, especially in sodas.

Calories: 16 per teaspoon, 4 per gram.

Sugar alcohols

Often found in sugar-free gum and no-sugar-added pastries, sorbitol, mannitol, maltitol, and xylitol are also in fruits. Why they're a good choice: They don't produce a significant rise in blood sugar, they're lower in calories than more quickly absorbed sugars, and they don't cause cavities.

Calories: 9 to 12 per teaspoon, 1.5 to 3 per gram.

Artificial sweeteners

The Food and Drug Administration has deemed five artificial sweeteners safe for everyday consumption by kids as well as adults: aspartame (Equal), acesulfame potassium (Sunett, Sweet One), sucralose (Splenda), neotame, and saccharin. (Saccharin's safety has been called into question, but long-term studies show no cancer risk to humans.) Their advantages: They're calorie-free, they don't produce a rise in blood sugar, and they don't cause cavities. Their disadvantages: Saccharin, aspartame, and acesulfame potassium don't taste exactly like sugar. And aspartame can't be used in baking or cooking.

Calories: 0.

Honey and maple syrup

These contain sucrose, fructose, and water and produce a quick rise in blood-sugar levels. Honey isn't safe for babies under 1.

Calories: about 22 per teaspoon.

Stevia

This herbal extract hasn't been tested in humans, but animal studies suggest a link to reproductive problems and cancer. Nutritionists caution that stevia shouldn't be given to anyone until more is known about its safety.

Calories: 0.