How SCD Eliminates the Harmful Gut Microorganisms
Why and how SCD eliminates the harmful gut bacteria:
Complex sugars and starches are the preferred food supply of gut
pathogens. SCD eradicates these harmful bacteria by restricting the
use of complex carbohydrates. They are much more difficult to digest
than simple carbohydrates because they must be split into simple sugars
before entering the blood stream. This is a problem for a compromised
digestive system. Carbohydrates not absorbed into the blood stream
become available food for harmful gut bacteria.
SCD excels because it excludes them and permits only monosaccharide
carbohydrates, the type easy to digest because once absorbed, they
vanish into the bloodstream before the bacteria can access them.
Two out of the following three research articles use The Hydrogen
Breath test to measure
amounts of anaerobic bacteria. ("anaerobic" is a technical word which
means without air )
ABOUT THE HYDROGEN BREATH TEST
The hydrogen breath test utilizes the hydrogen measurement in the breath
to diagnose several conditions that cause gastrointestinal symptoms.
Anaerobic bacteria are the only bacteria in the colon capable of
producing hydrogen in humans. The gas develops as the result of
exposure to unabsorbed food, particularly sugars and other
carbohydrates like starch. Limited hydrogen is produced from the small
amounts of unabsorbed food
that normally reach the colon. Even larger amounts of hydrogen are
present when there is a problem with food digestion and absorption in
the small intestine. An environment is created that allows more
unabsorbed food to reach the colon. Large amounts of hydrogen can also
colonic bacteria move back into the small intestine. ( "bacterial
overgrowth" of the small bowel.) Once exposed to unabsorbed food, the
bacteria are unable to completely traverse the
small intestine to become fully digested and absorbed. Instead, some
of the hydrogen produced is absorbed into the blood as it flows
through the wall of the small intestine and colon and
travels to the lungs. This hydrogen is released along with exhaled
breath and can be measured.
The information above was taken from this website:
Supporting Research from PubMed:
Scientific Article #1
An important scientific experiment shows that the sugars that are
prohibited from the SCD diet feed the anaerobic bacteria in the gut.
When patients with GI problems consumed complex sugars, the hydrogen
test showed increases bacterial counts. (There is one exception:
fructose). Fructose is a
simple sugar; yet that sugar which is not complex also produces an
increase in bacterial levels. Today's fructose is made from corn starch
and impurities remain and
fructose that is used for experiments is now made from corn, so it acts
like an SCD illegal sugar.
Websites about how fructose is manufactured from corn:
The following Israeli paper shows that the sugars that are not allowed by SCD lead to an increase in bacterial count. These sugars
well absorbed and contribute to digestive problems:
View this article in PubMed
1: Isr Med Assoc J. 2000 Aug;2(8):583-7.
Carbohydrate malabsorption and the effect of dietary restriction on
symptoms of irritable bowel syndrome and functional bowel complaints.
Goldstein R, Braverman D, Stankiewicz H.
Gastroenterology Institute, Shaare Zedek Medical Center, Jerusalem,
BACKGROUND: Carbohydrate malabsorption of lactose, fructose and sorbitol
has already been described in normal volunteers and in patients with
functional bowel complaints including irritable bowel syndrome.
Elimination of the offending sugar(s) should result in clinical
improvement. OBJECTIVE: To examine the importance of carbohydrate
malabsorption in outpatients previously diagnosed as having functional
bowel disorders, and to estimate the degree of clinical improvement
following dietary restriction of the malabsorbed sugar(s). METHODS: A
cohort of 239 patients defined as functional bowel complaints was
divided into a group of 94 patients who met the Rome criteria for
irritable bowel syndrome and a second group of 145 patients who did not
fulfill these criteria and were defined as functional complaints.
Lactose (18 g), fructose (25 g) and a mixture of fructose (25 g) plus
sorbitol (5 g) solutions were administered at weekly intervals.
End-expiratory hydrogen and methane breath samples were collected at 30
minute intervals for 4 hours. Incomplete absorption was defined as an
increment in breath hydrogen of at least 20 ppm, or its equivalent in
methane of at least 5 ppm. All patients received a diet without the
offending sugar(s) for one month. RESULTS: Only 7% of patients with IBS
and 8% of patients with FC absorbed all three sugars normally. The
frequency of isolated lactose malabsorption was 16% and 12%
respectively. The association of lactose and fructose-sorbitol
malabsorption occurred in 61% of both patient groups. The frequency of
sugar malabsorption among patients in both groups was 78% for lactose
malabsorption (IBS 82%, FC 75%), 44% for fructose malabsorption and 73%
for fructose-sorbitol malabsorption (IBS 70%, FC 75%). A marked
improvement occurred in 56% of IBS and 60% of FC patients following
dietary restriction. The number of symptoms decreased significantly in
both groups (P < 0.01) and correlated with the improvement index (IBS P
< 0.05, FC P < 0.025). CONCLUSIONS: Combined sugar malabsorption
patterns are common in functional bowel disorders and may contribute to
symptomatology in most patients. Dietary restriction of the offending
sugar(s) should be implemented before the institution of drug therapy.
PMID: 10979349 [PubMed - indexed for MEDLINE]
Scientific Article #2
Research paper #2 proves that bacterial fermentation is caused by
unabsorbed starches. Half of the volunteers were fed starches together
with acarbose, an inhibitor that would make them unable to absorb the
starches. The volunteers who took acarbose were unable to digest their
starches and showed signs of having increased bacterial counts in the
View this article in PubMed
1: Gastroenterology. 1988 Dec;95(6):1549-55.
Effect of starch malabsorption on colonic function and metabolism in
Scheppach W, Fabian C, Ahrens F, Spengler M, Kasper H.
Department of Medicine, Wuerzburg University, Federal Republic of
To study the impact of starch on colonic function and metabolism, 12
healthy volunteers consumed a controlled diet rich in starch for two
4-wk periods. In one of the study periods they received the glucosidase
inhibitor acarbose (BAY g 5421) and placebo in the other. Stool wet
weight increased by 68%, stool dry weight by 57%, fecal water content by
73%, and the mean transit time by 30% on acarbose. Breath hydrogen was
significantly higher on acarbose, indicating stimulated carbohydrate
fermentation in the colon. Fecal bacterial mass (+78%), total stool
nitrogen (+53%), bacterial nitrogen (+200%), and stool fat (+56%) were
higher in the acarbose than in the control period. The stimulation of
fermentation in the human large intestine may be important in colonic
and possibly other diseases.
Explanation of fermentation
Scientific Article #3
Sorbitol is another carb that is not allowed on SCD. This research paper
shows that consumption of Sorbitol produced an increase of bacterial
counts on the hydrogen test.
View this article in PubMed
Website that explains that Anaerobic Bacteria are mostly pathogenic.
View the website
The home page of this website indicates that it is affiliated with the University of California at San Diego Medical School.
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