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I made two assumptions in the posting of my first reply:Monolith said:...When i cook oats, i add water and microwave them. That turns them into what can be best described as paste. ...i have no idea how a blender could know to cut each oat only once and only down its length... Putting oats in a blender creates a powder...blender that only separates oats into little hemispheres...you'd be arguing about something no one is even talking about - regular oats...all i should have really had to do is quote this, again:
I live to servejaim91 said:lol...thanks Luke...
Luke9583 said:I live to serve![]()
And the sugary brown stuff IS NOT CRAP! It is what I live for. That, and the peaches and cream flavour. Sometimes, I even go for the dino eggs. The packages average between 120 - 200 cals per pack. I love it!!!
Among others, they served 16% gelatinized thick oats and found a GI/II response of 70/59. Similar gelatinization in the thin oats produced a much higher GI/II response of 97/84. In 0% gelatinized thick oats (yes, they did test raw rolled oats), the GI/II response was 78/74. Gelatinization lowered the GI/II response in thick oats marginally, but did fuck all in thin oats. The authors attribute it to "a lowered accessibility to amylase when the outer layer of the endosperm and/or the cell walls are less disrupted." In other words, thinner oats - or more disrupted/chopped/blended/hacked oats - are easier to digest, regardless of gelatinization, by rupturing the endosperm to a greater extent than the thick oats. So, blending != cooking.BlueX_v1 said:I made two assumptions in the posting of my first reply:
1. When cooking oats, typical preparation does not result in a paste. I based this assumption on my own means of preparation in accordance with directions on Quaker Old Fashioned Oats, and that of others I have observed, who tend to prepare them in such a way that quite a bit of defined solid texture remains present in the bowl among the more fluid components of the food.
2. When blending an oat-protein powder shake, the preparer will only operate the blender as long as necessary to mix the ingredients, and not specifically to break the oats down into a smooth imperceptible texture resulting in an oat powder.
In the case of assumption number one, the greater one cooks their oats into a paste-like consistency, the greater the likelyhood that the oats will be broken down beyond what would occur in a blender and that the total surface area will be increased. However, within the scope of this discussion, the fact that someone prepares oats into a paste that does not require any chewing is quite irrelevant, because whether heavily cooked or lightly cooked and chewed, both sets of oats are going down the esophagus with similar amounts of processing and break down, resulting in a similar degree of gooeyness of moving mass in the stomach.
In the case of assumption number two, If someone is in fact blending the oats to such an extent that a powder results, then the effect on the GI value of the raw powdered oats compared to cooked whole oats may yet be negligible and warrants discussion and investigation.
The premise of my argument is in no way at odds with the quoted study's abstract. The variable discussed there concerning the oat samples was only the thickness of the oat. It is simple probability that in a blender, the oat will be cut across the surface which presents the greatest surface area a greater number of times, that being the face of the oat. Therefore, an absolute direct comparison between the study and our discussion can not be made. The study does not factor in levels of cooking vs. particle size.
You must also factor in the effect of cooking the oat, which will not occur in a blender. Reading further into the same Lund study, it also discusses the resulting increase in glucose response when consuming oats gelatinized by heat and water. Unfortunately it does not test raw oat fragments against cooked thick oat paste. If you can refer to a study which does make this direct comparison, I'd be very interested in it.
As an aside (not really relevant, but as a matter of personal curiosity):
Please explain what you mean by a blender cutting the oats into little hemispheres? I never put forth the argument that a hemispherical shape might have any special effect. Seeing as how the oat is a relatively flat object, and a hemisphere is the result of a sphere being cut, I'm not sure what that statement was designed to imply.
Also, could you please refer me to the post that discusses the specific type of oat being used in the shake blend? I must have missed where using regular oats as opposed to quick oats was specified.