marengo  burbled across the ether:

Also known as glycerine, or glycerol, it is a substance derived from a
fatty acid that is used as a sweetener, and more importantly, a
moisturizer for protien sources like soy which are incredibly dry
without it (it attracts and holds onto water, which is why it is often
used in beauty products).  It also helps tremendously with the texture
of some foods.  If you think lowcarb bars are nasty now.....

It is generally absorbed slowly enough to prevent an insulin spike.
Insulin spikes are bad for the average lowcarber, because spikes clear
out the blood of all the energy you just ate and stores it as fat before
you have a chance to burn any of it off.  This is not the same thing as
no blood sugar impact at all (something diabetics need to pay attention
to).  It will still raise your blood sugar, but how much, and how
quickly, depends on whether you have insulin issues and what type, and
of course, your body's personal idiosyncrasities.

The concept of net carb is basically one of what effects the blood
sugar, and how strongly, in relation to that aforementioned insulin
spike.  Most *DIET* products on the market are NOT formulated with
diabetic needs in mind, so the manufactures labels don't reflect their
concerns.  If they did, the products would fall under the FDA's
medicinal foods rules, which are much more stringent about marketing
claims, among other things and only be available by prescription (at an
even more inflated price).

Since you are now a T2, I suggest testing with your meter how you react
to foods containing glycerin, alone and in combination with other types
of food.  Don't rely on labels to tell you what is safe to eat-- nowdays
even coffee has developed the no-carb disease (the USDA site
mysteriously changed several foods to zero after the first studies
started coming out vendicating lowcarb-- the new data from the food
industry came in shortly after the news and wha-la, suddenly we don't
have hidden carbs in many things anymore.)  Always eat to your meter.
This may include products containing glycerin or SAs, or it may not.  No
way to tell until you test.

18 pounds down by the way.