I’m not a nutritionist, but what you’ve heard is pretty much correct: sugar, for the most part, is sugar, though refined sugars are metabolized by the body more quickly than starch and may lead to increased risk of obesity and blood sugar irregularities. While this debate continues without definitive answers, it seems more important to remember that all sugars should be used in moderation, since most offer few benefits the body other than the short-lived pleasure of a sweet treat (which obviously has its time and place).
When your sweet tooth demands satisfaction, fruit and fruit-sweetened sugar-free foods are a better choice, but if you're turning to a sugar sweetener, here is a selection of varieties to consider:
There is one natural sugar alternative that is gaining popularity: Stevia root, which is available in packets or liquid extract. Though very sweet, it isn’t a sugar, so it doesn’t affect blood sugar the way sugar does. It doesn’t taste exactly like sugar, but its fruity taste works well in teas and baked goods.