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08-11-2016, 01:04 PM #1
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Is this true or just more bad info from Youtube???
Recently one of the Youtube fitness "gods" made the statement: "all carbohydrates, no matter where they come from, are all broken down into the simplest form of glucose.".....Is this true?....He also said:" "so whether you eat a bowl of rice, an apple, a chocolate milkshake it all ends up as basic glucose".....this doesn't sound right--isn't fructose involved in there somewhere?....thanks for your input!
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08-11-2016, 02:07 PM #2
Well...yes AND no. In a sense he's right in that the body needs to convert food to fuel (glucose), buuuut, it's really not that simple. Not all carbs yield the same amount of glucose. It all depends on the chemical makeup of that carb you're eating. Muscle glycogen is a linear string of glucose molecules. So you need to have glucose in order to make energy for a muscle. That can happen directly from food or indirectly through the body's conversion because, remember, the body CAN convert non-carbohydrates (think fat) into energy (think glucose). I'd need to write a book to explain it completely so for the sake of brevity...
Eating a pack of Smarties, Dextro-Energen, and many brands of Sweet-Tarts (dextrose candy, aka glucose candy) doesn't require a chemical bond to be broken (to get to the glucose) and it goes directly into the bloodstream as glucose.
Table sugar, sucrose, is a disaccharide made up of glucose and fructose and when it is broken into its components, there is a glucose molecule AND a fructose molecule for every sucrose molecule. Fructose cannot be used directly like glucose can, yet it CAN be converted and stored in the liver but any excess will be stored as fat.
Starch and cellulose are huge macromolecules (polysaccharides) made up of glucose molecules linked together and the body breaks down these macromolecules for energy (glucose). The fact that these need to be broken down over and over (even though the calories may be the same as some dextrose candy) explains why a complex carbohydrate can hold you longer.
In a nutshell, a carb IS NOT a carb (from a MOLECULAR point of view), if that's what your "guru" was trying to say. Understand I'm not saying he's flat-out wrong, just over-simplified for his audience because not everyone has an advanced degree in chemistry. Just saying (with respect) the chemistry is more complicated than that.2016 RX Member of the Year & March 2015 Member of the Month
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08-11-2016, 05:48 PM #3
Tried to rep Sunnyday on that highly informative response but haven't spread around the 20 to be able to do so yet. Still thanks for the info
WNBF Pro Bodybuilder
B.S. Degree Exercise Science
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08-11-2016, 05:53 PM #42016 RX Member of the Year & March 2015 Member of the Month
https://www.instagram.com/sunny52kg/
https://granitesupplements.com/ideva...ate.php?id=127
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08-11-2016, 06:03 PM #5
Good to hear. Many rep worthy posts are by the same people so it will be good to be able to give them credit more often with a more reasonable number of "spreading around".
WNBF Pro Bodybuilder
B.S. Degree Exercise Science
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08-12-2016, 12:52 AM #6
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08-12-2016, 09:41 AM #7
No, not correct. Apples contain mostly fructose but also SOME glucose. Not as much as grapes but still there. An apple doesn't spike insulin immediately but the carbs DO get converted into useful energy (glucose). The body CAN AND DOES convert the fructose INTO glucose eventually.
2016 RX Member of the Year & March 2015 Member of the Month
https://www.instagram.com/sunny52kg/
https://granitesupplements.com/ideva...ate.php?id=127
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08-19-2016, 10:15 PM #8
Sunny nailed it. In a super simple sense yes MOST carbs will be broken down into glucose unless they are heavily fructose containing. That is a big reason why the whole glycemic index is usually not an issue. I say usually because it can matter in very select situations. However, if you want to knit pick between eating white rice vs brown rice you are likely wasting your time.
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