[quote]silverhydra wrote:
[quote]Xab wrote:
[quote]silverhydra wrote:
Although I do not have a specific number, wouldn’t the effect of too much psyllium hindering absorption be observable in one’s droppings?
I would think that the number may not be a solid number by itself, but maybe more a ratio of fibers that speed transit up, and fibers that congest intestional traffic. As I routinely have over 20g of Psyllium a day, yet over 30g from vegetable sources, which seem like large numbers but have served me great.
Edit: Never knew the word ‘purging’ applied to laxatives, interesting.
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More fiber just means you’re delaying the rate at which food is absorbed, especially in the case of carbs. Unless you have terrible diarrhea or something, your body is extremely good at getting every tiny last calorie out of the food you eat. I think it was Dave Tate that said we don’t poop calories.
I know of a young female athlete that overused laxatives to the point that she ruined the lining in most of her colon, or something to that effect. She needed all sorts of surgery to get it fixed, besides psychiatric treatment for the bulemia.
Indeed, most purging is in the form of self-induced vomiting, but bulemic purging can also be achieved through the overuse of laxatives or fiber or excessive exercise (like 4 hour fasted cardio). Some bulemics do not purge but still binge eat. [/quote]
To get off topic of bulimia, as I doubt that is a concern with either of us; I believe you are overthinking this problem. Many people on these forums have over 50g of fiber a day from various sources, and some intake over 100g. I have yet to hear of this high fiber intake to be harmful to one’s microvilli.
Your initial question pertains to nutrient absorption, which takes place in the small intestine. Laxatives act upon the large intestine and colon, and nutrient absorption (outside of water) takes place in the small intestine.
Also, delaying nutrient absorption is not the only function of dietary fiber. Have you noticed that those with a good fibre intake poop at least once a day, sometimes more, yet you, who have a question about proper fiber intake, are pooping 2-3 times a week? That’s the opposite of delaying transit.
And PLEASE get off the topic of laxatives, if everyone replying to these posts are trying to answer to the best of their abilities about fiber, and you keep rambling on about how laxatives are bad for your intestines, you will stop getting any responses outside of flaming.
Dietary Fiber is NOT the same as medicinal Laxatives.[/quote]
I was hoping for the basis of a number of grams of fiber that would serve as an upper ceiling. 75g? 100g? 200g? But seeing as though, as you have said, some individuals get 100g daily with no ill effects, that’s what I wanted to know. Damn, that was like pulling teeth. And I’ve stated the function of fiber multiple times. I know what it does. =) My original question pertained only to how much fiber - as in a number of grams - is too much.
The only reason I was talking about laxatives was pointing out that they can be used for bulemic purging, as can extreme overconsumption of fiber, because they both force your body to very quickly move food through the digestive tract, but through different mechanisms. And even then, the only reason I brought that up was because someone asked for clarification as to why extreme overconsumption of fiber is bad. That’s it. You’re taking this way away from what I was even talking about. I’m not trying to say laxatives should be used in place of fiber; ideally, no one would ever need to use a laxative because they would eat enough fiber! I’m not sure where you’re getting that idea.