I originally started taking it because I wasn't digesting starches and sugars well. If I ate a meal with too much starch, I'd get nauseated and sometimes physically ill, even if there was no gluten in the starch. Basically it was getting so I could eat fewer and fewer foods. That was one reason I started Fast-5 ... it helps vastly with digestion. Then I read about glucomannan helping with starch digestion, so I added the glucomannan. Worked beautifully.
The theory is that glucomannan slows down motility, so the enzymes have more time to work on the food. Basically everything digests more thoroughly. However, it also turned out that I had ulcers, and the konjac helps kill h. pylori too. Also helps with GERD. So I'm not sure WHY exactly it worked. But my stomach started feeling really good and I stopped having digestive problems.
I can't see it being really useful for weight loss except that you feel full longer so are less likely to snack, and it seems to regulate blood glucose some. In studies it does not interfere with long-term caloric intake. Some early studies said that it prevented some nutrients from being absorbed, but those studies only looked at the first part of the digestive tract. What later studies found is that more of the entire digestive tract is used: instead of say, everything getting digested in the first 4 feet of the small intestine, more like 10 feet is used (I'm making up the numbers). The konjac itself gets digested too, but not until it reaches the large intestine, where it feeds the bacteria that produce butyrate.
On Fri, Jun 18, 2010 at 4:14 AM, tamaratornado <tamaratornado@yahoo.com> wrote:
- How do you take konjac, and what is the purpose for you?
> In what I've read, there isn't actually any indication that konjac prevents>
> food absorption. But it does make it so that the food absorbs over a longer
> stretch of the intestine. All the food gets absorbed though: in fact maybe
> MORE gets absorbed.
>
> I suppose that might be an issue with medication if it's one that needs to
> be absorbed quickly. For painkillers though, you'll know if it isn't being
> absorbed: you'll still be in pain! For vitamins, I thing slow-release is
> probably better anyway. Mostly the only medications I take for illness are
> antibiotics on occasion, and it doesn't seem to interfere with those.
>
> The directions on PGX are for trying to control appetite (i.e. making you
> feel fuller). I don't really have that issue on Fast-5, so it's not the way
> I take konjac.
>
>
>
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