View Full Version : Glycerine

09-28-2001, 02:04 PM
What the heck is it and how come it has a value of 4.3 cal per gram if it is not a carbohydrate? I was reading the back of a protein bar the other day and I'm kind of confused. Is it included in the nutritional facts of protein bars? Thanks in advance!

09-28-2001, 02:33 PM
The way its molecules are branched together doesn't make it a carb, pro, or fat macro.

Its still calories though, so I count them as carbs when calorie counting.

And no, protein bars won't include its nutritional amount on the pack, but you can see by looking at the ingredients which bars containe glycerine, and you can determine approx how much glycerine is in a bar by figuring out the total calories coming from the 3 macros added up and subtracting that figure from the total calories the bar contains.

09-28-2001, 02:35 PM
one thing your post didn't mention prodigy is that it is a sugar alcohol. which i believe is why it gets mentioned as having a carb value.

09-28-2001, 02:37 PM
urg. i wish that hadn't a been deleted. it actually did have useful info in it.

09-28-2001, 02:41 PM
Wait, something does not add up.

Here is my MetRx Protein Plus Bar (yummy):
9g fat, 13g carb, 34g protein

(9*9)+(34*4)+(13*4)=269 cals
The bar says it is 260 cals.
And it has glycerine in the ingridients.
So what's going on?

Also, the bar is 85g total, but 9+34+13 is only 56. Does this mean that the other 29g is glycerine? 29*4.32=125 calories from glycerine. That means the bar is *really* 385 cals and has a s***load of sugar in it?

09-28-2001, 02:47 PM
4.3 cal * 2 = 8.6, rounded to 9. Maybe they didn't count 2g of Glycerin as an active carbohydrate? Still doesn't explain 85g to me, but oh well. :)

09-29-2001, 06:43 PM
Bump. :) Anyone have any ideas?

What the hell is in these protein bars?


09-30-2001, 08:49 AM
Simple solution:


09-30-2001, 02:31 PM
lol. you're so damn smart ronan. :)

darn it, the chocolate chip ones are yummy :cry:

i give up.

09-30-2001, 06:17 PM
Protein bars = evil

the doc
09-30-2001, 06:39 PM
glycerine is a carb-metabolite and also is formed during the metabolism of fats (fat= triglycerides= 3 fatty acids+1 glycerol)

it is a common food additive, especially in protein bars

It can be used for glycogen synthesis via gluconeogenesis but doesn't stimulate insulin a significant degree.

Glycerol is often not counted as one of the listed macros on a nutrition label

to find the amount of suspect carbs (sugar alcohols and glycerine)

take the total # of cals - (listed grams of fat x 9 +listed grams of protein x 4 + listed grams of carbs x 4)

The difference is the # of cals from glycerol

Maki Riddington
09-30-2001, 06:46 PM
Originally posted by w8lifter
Protein bars = evil

*** Amen to that.