SUGAR IS EVERY DAMN WHERE!!!

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  • raystark
    raystark Posts: 403 Member

    Of course the body processes fructose and glucose differently. However, HFCS and Sucrose are just about identical molecularly. They are both glucose and fructose. And, while HFCS has a slightly higher percentage of fructose, and interesting thing about human metabolism, when glucose and fructose are both eaten together, the body only absorbs fructose efficiently in a 1:1 ratio with glucose. When there is free fructose, or more fructose than glucose, the body doesn't absorb the extra.

    link to source please.

    Extra points for politeness.
  • tigersword
    tigersword Posts: 8,059 Member

    Of course the body processes fructose and glucose differently. However, HFCS and Sucrose are just about identical molecularly. They are both glucose and fructose. And, while HFCS has a slightly higher percentage of fructose, and interesting thing about human metabolism, when glucose and fructose are both eaten together, the body only absorbs fructose efficiently in a 1:1 ratio with glucose. When there is free fructose, or more fructose than glucose, the body doesn't absorb the extra.

    link to source please.
    http://www.ajcn.org/content/48/6/1424.abstract?sid=1c7f30c9-8ef0-4090-9a8e-8e120a8a4b39
    Here, you can also get a PDF of the full study from there.

    Basically the GLUT5 transporter is responsible for the absorption of fructose. It generally can only handle relatively small amounts of fructose at a time, before it gets overwhelmed. Now, glucose has different transporters, and fructose can basically hitch a ride with glucose when they are consumed together. There are no natural foods that don't contain glucose and fructose together, spit went mostly unnoticed until scientists started looking specifically at fructose individually.

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