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Where can I find the glycemic index scale?
Does anybody know?
Does anybody know?
Question about glycemic index
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Haz
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Peyote Killa
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thankyou for your help, I appreciate it
toga22
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Haz said:
I know we went over this somewhere but can you PLEASE explain to me why there is 2 different numbers for each food on the food based list. I read the caption above but I'm still having a hard time understanding...anybody who understands this well I would totally appreciate any explanations you might have
Thanks.
visions said:
The row on the right is based on 50gm of glucose. 50gm of glucose makes your blood sugar level rise to a certain level - called "100" (completely arbitrary number). Then other foods are tested and their effects on blood sugar level are graded on this scale (where 50gm of glucose = "100").
The row on the left is based on 50gm of white bread. 50gm of white bread makes your blood sugar level rise to a certain level (NOT the same level as glucose though) - called "100" (completely arbitrary number). Then other foods are tested and their effects on blood sugar level are graded on this scale (where 50gm of white bread = "100").
Basically, you can use either index, but don't interchange between the two, as they are based on different scales. (because 50gm of glucose doesn't give the same blood sugar rise as 50gm of white bread).
Hope that helps.
GenDog said:
ok yea kinda...but lets say you use the white bread one which is on the left. If you have a piece of white bread why are you relating it to itslef on the GI scale, why can't it just represent its own number?? Like why isn't a piece of bread just one number on the index scale. I guess I'm still missing as to why there is a white bread index scale and a glucose scale?? Another example which has confused me moreso is that someone listed these numbers and their totally different http://boards.elitefitness.com/forum/showthread.php?threadid=118565
Thanks though
maybe you could give me an example as to why you would use one as opposed to the other?
It's just a scale, an index, just a list of relationships between different foods and their effects on blood sugar level. For whatever reason, scientists conducting these studies chose to use glucose as their standard base measurement, on which all other foods are based. (Probably because it is the most basic sugar our bodies use). They found that people didn't like ingesting 50gms of glucose at one sitting, so they used white bread instead, and made that the standard base to measure the others - hence the two scales.
It simply does not matter which scale you use at all - so long as you only use one - because the numbers for the same food WILL be different, because they are based on a different "100". Having said that, if you look on that website, you'll see that glucose on the glucose scale has a value of 102 (should really be 100) and white bread on the white bread scale has a value of 100. Glucose on the white bread scale, however, has a value of 146. If you take any food on the white bread scale, divide it's value by 146 and multiply by 100, you'll get approximately the same value on the glucose scale.
Man I'm long winded...
Anyway, don't stress about it, all these scales mean is that if you ate 50gm of low fat ice cream, your blood sugar level would rise half as much as if you ate 50gm of pure glucose. Or, another way to put it would be your blood sugar level would rise only 70% percent as much as eating 50gm of white bread. Or, if you ate 200gm of red lentils your blood sugar level would be the same as if you ate 50gm of glucose - or 139gms of white bread.
As far as that other scale posted on these forums is concerned, they look the same as the glucose scale to me. Check out "special K" on both.
Hope that confused you enough
It simply does not matter which scale you use at all - so long as you only use one - because the numbers for the same food WILL be different, because they are based on a different "100". Having said that, if you look on that website, you'll see that glucose on the glucose scale has a value of 102 (should really be 100) and white bread on the white bread scale has a value of 100. Glucose on the white bread scale, however, has a value of 146. If you take any food on the white bread scale, divide it's value by 146 and multiply by 100, you'll get approximately the same value on the glucose scale.
Man I'm long winded...
Anyway, don't stress about it, all these scales mean is that if you ate 50gm of low fat ice cream, your blood sugar level would rise half as much as if you ate 50gm of pure glucose. Or, another way to put it would be your blood sugar level would rise only 70% percent as much as eating 50gm of white bread. Or, if you ate 200gm of red lentils your blood sugar level would be the same as if you ate 50gm of glucose - or 139gms of white bread.
As far as that other scale posted on these forums is concerned, they look the same as the glucose scale to me. Check out "special K" on both.
Hope that confused you enough
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