Thread: Maltodextrin
View Single Post
 
Old 12-06-2006, 09:59 AM
EricT EricT is offline
Rank: Heavyweight
 
Join Date: Jul 2005
Posts: 6,314
Default

I wanted to post this simple but very useful explanation on the whole malto and dex thing so that people can understand what I'm talking about. I agree, however, as Cain says at the end, that it is not a great big deal, it just may be more optimal if it matters to you. This explanation is why I assert, however, that if you were to choose one or the other, choose malto.

Quote:
Originally Posted by James Cain
The goal post workout is to digest nutrients (PWO shake) quickly so they are transported to our muscles. This process slows when the ingested fluid contains a high osmolarity concentration. The shorter chain length a carbohydrate has, the higher it raises the solution's osmolarity. A pure glucose (dextrose) solution induces very high concentrations of solute. A combination of dextrose and maltodextrin gives a solution with a decreased osmolarity so glucose will enter the blood as a faster rate.

However, using only maltodextrine for this reason isn't optimal. A solution containing two substrates (in this case maltodexrin and dextrose) stimulates the activation of more transport mechanisms in the intestinal lumen, as opposed to just maltodextrin or dextrose alone. This way more carbohydrates are transported out of the small intestine and absorbed into the blood, leading to faster and greater circulation of carbohydrates.

Are dextrose and Malto both classed as a simple carb?

Dextrose is a simple sugar. It is an isomer of glucose, D-glucose. D-glucose is found in living organisms while L-glucose is not. The D enantiomer rotates light to the right, while the L enantiomer rotates light to the left. The Latin expression 'dexter' meaning 'right' was used in calling 'D-glucose' 'Dextrose.'

Maltodextrin is a chain of maltodextrin. While maltodextrin is technically classified as a complex carb because of the number of dextrose molecules chained together, it is digested almost nearly as fast as dextrose. This is because the hydrogen bonds linking the dextrose molecules within maltodextrin are very weak, allowing the body to quickly and easily break them apart during processing.

Both have very fast digestion rates. While adding both to a shake might increase the speed at which glucose is taken up by the muscles, I doubt it's that big of a deal for most people. But if you're looking for that little extra edge, and you're a nutrition Nazi, this could work for you.
It's actually a whole lot more complicated than this but this tells you what you need to know. Who the hell wants to discuss GLUT 4 receptors ? I'll leave it to the lab rats.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
or
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


If you act sanctimonious I will just list out your logical fallacies until you get pissed off and spew blasphemous remarks.
Reply With Quote