I asked about this at my last appointment with my Diabetic Educator. Sugar Alcohols are a hydrogenated version of sucrose (that is they add hydrogen to it to change the chemical compound) They are not as sweet as regular sugar but they're added to certain artificial sweeteners like saccharin and aspartame to mask the bitter aftertaste. They're used because they are poorly absorbed by your digestive system.
However, they do affect your blood sugar, and when you're counting carbs you can't negate the alcohols completely, you can only subtract half. Say for instance that your bar has 35 g of total carbs and 20g of that was sugar alcohols then that bar would count as 25g total carbs (35 - ( 20 /2)) not 15g total carbs.
I personally don't care for sugar alcohols as they wreak havoc on my insides. In your shoes, I would find a bar that uses Splenda as a sweetener and forget the sugar alcohols altogether.
"If you want to look thin, you hang out with fat people" - Rodney Dangerfield
What exactly is a sugar alcohol and how are they different from sugar? I sometimes eat Atkins bars for a snack at work, and I realized today that I'm not sure they're really that much better than other options. They have just as much calories and fat as other things I would choose. The only difference is that they have sugar alcohols which make them lower in carbs.
I'm wondering if I'd be better off with Slim Fast bars.
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