Suze said:Quoting Bev-Ann:
Quoted message said:I'm curious to see what explanation you've got for the
difference between soluble and insoluble fibre that's going to be
different
Quoted message said:Quoted message said:from known science, specifically that neither are digested.
Pfffft. It's not "known science".
Soluble fiber isn't digested by human enzymes, but that is not
the same as saying it isn't digested at all. Soluble fiber
is digested by human intestinal bacteria. For comparison,
insoluble fiber is digested by termite intestinal bacteria.
The test is simple. Eat several meals that are very high in
insoluble fiber. As high a ratio of insoluble fiber as
possible, say several spoons of psyllium husks. A few days
later eat several meals that are very high in soluble fiber.
As high a ratio of soluble fiber as possible, say several
spoons of inulin (fruit fiber) powder. Which one gives you
gas bloating? That gas bloating comes from the soluble fiber
being digested. Hint - legumes (beans) are very high in
soluble fiber.
Food digested by human digestive enzymes all goes to the
human who digested it. Food digested by intestinal bacteria
gets partially absorbed by the human, partially by the
bacteria. Exactly what ratio, no one can tell. It will
vary by more variables than can easily be figured.
Because of this difference between soluble and insoluble
fiber, Dr Atkins deducted insoluble fiber starting a very
long time ago. Just check the carb counts of some items
in the 1973 and 1993 editions of his book and this can be
seen. Look closely at the listed counts for different types
of nuts.
The problem is labels only list fiber, not which type. To
figure out which type it takes looking them up in books
that do list the two types. It's far too much work.
So it's correct to deduct insoluble fiber whether you
deduct soluble fiber or not. But it is not practical to
figure out which is which.
Why was fiber deduction added to the Atkins plan in 2003?
The reasons weren't given in any of the books, and the
reasons weren't listed on the web pages either. I offer
a couple of reasons, my own speculations:
1) It gets people to eat more veggies during Induction.
Since very many people ignore more than half of the
book and stay on Induction, the more veggies eaten
during Induction the better. Even tough our bodies
don't care whether we deduct so our CCLLs are the same
food with or without deduction, many never find their
CCLL.
2) Protein Power may have been the biggest competition
before South Beach came out, and PP deducts fiber.
Take a strength away from the competition as a strategy.
3) Eating more fiber is healthy.
4) The count is just a number. Deducting fiber basically
just gives a different number. It introduces a bias
that pretty much cancels out later in the plan so it
doesn't really matter. The count per the 1973 system
theoretically was zero, but if you look at what was
counted as zero (egg, dairy, salad and such) the actual
food wasn't much different.
The cool thing about the count just being a number is
folks like lower numbers as long as the number isn't ever
zero. (That mistake from the 1973 book won't be
repeated). Deducting fiber gives a lower number, so
folks will feel better about getting to, say 50 grams
per day. Yet in the end that 50 is really 60ish total.