Dear Stella,
Your question about sugar alcohols is a good one, (and one we've gotten
quite a lot) and you'll notice that in many reviews we do on products
containing them, I will note that "while the label list these as "XX" carbs
discounting sugar alcohols, you'd do well to count them as XX carbs for most
of us."
Sugar Alcohols (or polyols) are not a real "black or white" issue...
I am not "against" sugar alcohols — they can
be valuable in allowing us to have treats or get cooking results we
could not otherwise achieve. But it does sometimes bug me that a few
manufacturers discount the carb count of them to zero as though they were like
fiber. While everyone handles sugar alcohols differently, only in rare cases
should they truly be counted as zero for the majority of us. (More on
this in a minute.) I have a few rule-of-thumbs with different polyols
based on lots of reports from others, independent research, and my own reactions:
With sorbitol, I always count it as 2.5 carbs per gram of sorbitol
by weight (hence I rarely use sorbitol.) With mannitol, I count 1.6
carbs per gram. With maltitol, it's less than 1 carb per gram of maltitol
by weight. I allow 1/2 carb for xylitol and 1/2 carb for isomalt.
(Isomalt can be found in "Diabetisweet".) Until recently, I've been
using only maltitol, isomalt, and xylitol in cooking but always keep
strict track of how much. (The Steel's powdered maltitol is nearly indistinguishable from
powdered sugar and is wonderful to use for cookies like my Christmas
Pfeffernusse or powdering a design on the top of a low-carb cake.)
Recently, I discovered Erythritol. It's the only polyol that causes
no gastic "symptoms" and seems to be truly zero carb (it actually
works out to .003 carbs per gram, but it's too little to count.)
We'll be reviewing it soon. It's terribly expensive, though. Everytime
I buy it I feel like second-mortgaging my house.
So basically, I am saying that it's my opinion that they aren't "bad",
but don't believe companies that pretend that no amount of them count
at ALL. I've never met a truly zero carb commercial candy, and they
are not a "free" food. A little is fine, so long as they
don't cause you to stall. For example, if you're craving chocolate,
a good choice might be to have one Ross Chocolate Bar. Or perhaps
two pieces of Low Carb Chef candy. Made with maltitol, we can count
each as around 3 to 5 carbs and feel we've been fair with our daily limit and
still enjoyed some superior chocolate. Right now, some of our favorite
merchants have low-carb sugar free chocolates for Valentine's Day. They're
good quality chocolates, most maltitol sweetened. It means you can have that
little 'treat' for the special day without feeling guilty. But don't eat an
entire box because you think they're zero carb. (Besides, you'll never get
outta the bathroom!)
One last word. These counts are AVERAGE for how they effect most
people's blood sugar level and how much is used by the body the
way a normal carbohydrate would be. If you get LOTS of "bathroom
effects" from them, it's actually a good thing. If you are not
getting those effects (or very few) it means your body is more readily
using them as carbohydrates.
Hope this has helped to clear things up a little.

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