Reducing Ruminococcus Genus

Short form: This genus overgrowth is strongly associated with IBS and we also know a lot about which probiotics increases and decreases it growth.

DataPunk.Net Data

Parent means this bacteria parent, Ruminococcaceae is influenced (this and other siblings may be my inference).






PubMed Data

There are 1000+ studies on PubMed. THIS POST IS ONLY PARTIALLY COMPLETE

  • Disease
    • Ruminococcus torques (R. torques)-like (94% similarity in 16S rRNA gene sequence) phylotype was associated with severity of bowel symptoms [in IBS].  ” [2010]
    • Ruminococcus productus-Clostridium coccoides … were higher among IBS patients”[2015]
    • Ruminococcus albus, and Eubacterium rectale. Lactobacillus and bifidobacterium numbers were linked with low clinical activity indices in of ulcerative colitis ” [2013]
    • “children diagnosed with diarrhea predominant irritable bowel syndrome …dominated by genus Ruminococcus ” [2012]
    • “significant increases in the numbers of … Ruminococcus, .. in food sensitization (FS) in children [2016]
  •  Diet:
    • “polydextrose …to significantly increase the known butyrate producer Ruminococcus intestinalis ” [2012]
    • “quercetin…had the strongest impact on Ruminococcus gauvreauii,” [2012]
      • “quercetin did not prevent growth of Ruminococcus gauvreauii, ” [2016]
    • “barley β-glucans..Ruminococcus sp. increased, ” [2015]
    • “The soy protein group had the highest relative abundance of Ruminococcus but the lowest relative abundance of Lactobacillus. ” [2017]
    • “high-salt diet increased Firmicutes/Bacteroidetes ratio, the abundances of genera Lachnospiraceae and Ruminococcus” [2017]
  • Prebiotics:
    • Resistant maltodextrin..intake was associated with statistically significant increases (P < 0.001) in various operational taxonomic units matching closest to ruminococcus,[2014]
  • Probiotics:
    • Lactobacillus acidophilus   and Bifidobacterium longum ..significantly promote the growth of Ruminococcus gnavus, Ruminococcus torques, [2015]
    • Lactobacillus salivarius Ren ..reduced the amount of Ruminococcus sp., ” [2015]
    • “L. paracasei DG …with an ∼55% decrease in Ruminococcus (P = 0.016) ” [2014]
    • Lactobacillus rhamnosus GG …causing an increase in the abundance of Prevotella, Lactococcus, and Ruminococcus, ” [2016] [2014]
    • “The number of Ruminococcus albus was lower in .. Lactobacillus plantarum  and a mixture of Lactobacillus plantarum GF103 and Bacillus subtilis B27 ” [2017]
    • Ruminococcus obeum, Clostridium clostridioforme, Roseburia intestinalis, Lachnospiraceae bacterium 14-2T and Coprococcus eutactus were significantly higher in Lactobacillus acidophilus birds ” [2017]
    • Lactobacillus rhamnosus HN001 and Bifidobacterium longum ..with a decrease in Roseburia faecis and Ruminococcus gnavus abundance. ” [2017]
    • ” (e.g., Ruminococcus spp. and Clostridium spp.) that overgrew in the SI microbiota of the mice administered with L. plantarum ” [2016]
    • “B. subtilis  the relative abundance of … Ruminococcus, …were higher, ” [2016]

Bottom Line

Inconclusive (Specific Strains?) – should avoid

  • Lactobacillus plantarum
  • Lactobacillus rhamnosus
  • Bifidobacterium longum
  • Bacillus subtilis




Reducing Dorea genus

The  bacteria is dorea formicigenerans reported to be low in most CFS patients by Ian Lapkin et al 2017 paper


Parent means this bacteria parent, Lachnospiraceae   is influenced (this and other siblings may be my inference).





PubMed Data

There are 70+ studies on PubMed (300 by the author Dórea )

  • Disease:
    • ” This resulted from an approximately 1.5-fold increase in numbers of Dorea, ” [2011]
    • “We observed an increased abundance of Psuedomonas, Mycoplana, Haemophilus, Blautia, and Doreagenera in Multiple sclerosis  patients, [2016]
    • “patients in remission from Crohn’s disease had increased proportions of Dorea longicatena” [2016]
    • ” Dorea, … were significantly increased in Autism spectrum disorders” [2017] [2016]
    • “Parkinson’s disease  reduced content of Dorea,” [2017]
    • ” Dorea …were underrepresented among subjects with food sensitization.” [2017]
    • “Dorea spp. were found in an increased in abundance in both pediatric and adult irritable bowel syndrome patients (Rajilić-Stojanović et al., 2011; Saulnier et al., 2011), which probably could explain the symptom of bloating, experienced by the majority of these patients.”
  •  Diet:
    • ” At the genus level, consumption of 3 g/d HMW β-glucan increased Bacteroides (P < 0.003), tended to increase Prevotella (P < 0.1) but decreased Dorea (P < 0.1), ” [2016]
    • “The barley group had higher abundances of Akkermansia, Ruminococcus, Blautia, and Bilophila. Turicibacter and Roseburia were more abundant in the malt group, and [reduced] Parabacteroides, Dorea” [2015]
      • “High Molecular Weight Barley β-Glucan .. decreased Dorea” [2016]
      • “whole-grain barley and barley malt, decreases” [2015]
    • “23 healthy subjects were randomised into two study groups consuming a bowel preparation (Moviprep)…increased the levels of Proteobacteria, Fusobacteria and bacteria related to Dorea formicigenerans.” [2015]
    • ” At the genus level, Dialister, Dorea, Pseudobutyrivibrio, and Veillonella, belonging to the Firmicutes phylum, had statistically significant reduction with l-glutamine” [2015]
    • Stressor-induced increases in circulating IL-6 and MCP-1 were significantly correlated with stressor-induced changes in 3 members of the microbiota, Dorea spp., Coprococcus spp., and Pseudobutyrivibrio spp.” [2011]
    • “The relative abundance of sequences from several genera belonging to the Lachnospiraceae (eg, RuminococcusRoseburiaBlautia, and Dorea) was lower in high … vitamin D quartiles. “
    • ” the animal-based diet caused a significant increase in the relative abundance of Bilophila, Odoribacter, Dorea and Ruminococcus (belonging to Lachnospiraceae) and a significant decrease in the level of Bifidobacterium after five days of intake. ” [2016]
    • “Among others, bacteria of the order Lactobacillales, the family Enterococcaceae and genera Enterococcus and Doreashowed a trend towards increased abundance in Tc+ (Helminth infections) ” [2016]
    • ” iron sulfate (Oral) treatment was associated with decreased abundances of operational taxonomic units assigned to the species Faecalibacterium prausnitziiRuminococcus bromiiDorea sp. and Collinsella aerofaciens. “
    • “Alcohol …  significant reductions in genra Clostridium IV and XIVb (p<0.001), Dorea (p<0.01), [2017]
  • Prebiotics:
    • “galactooligosaccharides (GOS) ..showed a decrease in Dorea “[2009]
    • “prebiotic (fructo-oligosaccharides (FOS) and inulin mixture)..revealed a lower abundance of Dorea” [2017]
  • Probiotics:
    • Lactobacillus rhamnosus hsryfm 1301,…was changed significantly after probiotic intervention for 28 d (P < 0.05). A positive correlation was observed between Ruminococcus spp. and serum triglycerides, Dorea spp. ” [2014] [2013]
    • Bifidobacterium longum increases two strains that increase Dorea. {Pdf]
  • Antibiotics:
    • “decreased after treatment only in the antibiotic (amoxicillin, tetracycline and metronidazole for 2 weeks)  group. Eubacterium rectale, Dorea formicigenerans,” [2005]

Bottom Line





Familial Risk of CFS/IBS etc

It is generally view to be low. I would be inclined to say slow. I came across this study today that found that for another microbiome dysfunction that the partner showed significant shifts.  If you have a partner, you may want to have them do a uBiome test occasionally.

To the Study…

Partners of patients with ulcerative colitis exhibit a biologically relevant dysbiosis in fecal microbial metacommunities. Jul, 2017

“Fecal samples were collected from eight ulcerative colitis (UC) patients and their healthy partners ….

Fecal microbial communities were more similar among UC patients than their healthy partners (P = 0.024). UC individuals had a lower relative abundance of bacteria belonging to the Firmicutes, especially BlautiaClostridiumCoprococcus and Roseburia (P < 0.05). Microbiota dysbiosis was detected in UC patients and their healthy partners. Relevant genera included AkkermansiamBacteroidesEscherichiaLactobacillalesKlebsiella and Parabacteroides.

“In 1994, an investigation of 10 couples showed that individuals with IBD symptoms before marriage influenced their partners, resulting in similar symptoms in couples[12]. However, these results mainly focused on clinical symptoms and did not involve the gut microbial community.”

“Although there was no direct evidence that gut microbiota could spread between IBD patients and normal individuals, the results of this study suggested that fecal microbiota likely influence each other during long-term cohabitation with UC patients. Remarkably, our results indicated that the fecal microbiota composition was more similar among UC patients than among healthy individuals (Figure (Figure1).1). These findings further demonstrated that the gut microbiota composition, and alterations to it, plays a crucial role in the occurrence of UC.”

“Gut dysbiosis is considered one of the factors inducing inflammation in chronic IBD; however, its role in the etiology of ulcerative colitis is controversial. There have been many studies on fecal microbiota in recent years. The present study used a very sensitive method to assess bacterial strains and compared the microbiota in patients with inflammatory bowel disease with that of their healthy partners. The study assessed some type of bacteria only found in patients with UC. These bacteria are difficult to detect using less sensitive methods.”

Decreasing Parabacteroides genus

DataPunk.Net Data



PubMed Data

There are 175+ studies on PubMed.

  • Disease:
    • “Despite this, there were significant correlations between the relative abundance of bacteria in the families Rickenellaceae and Ruminococcaceae, and the Parabacteroides and Dialister genera and temperament (i.e., Fear in girls and Activity Level and High-Intensity Pleasure in boys). ” [2015]
    • “Opportunistic pathogenic taxa, such as, Klebsiella spp., Streptococcus spp., and Parabacteroides merdae were frequently distributed in hypertensive gut microbiome,” [2017]
    • ” In contrast, Parabacteroidesdistasonis, which was reduced in multiple sclerosis  patients, ” [2017]
    • “We also found significant decreases in the numbers of Bacteroides, Parabacteroides… with food sensitization” [2016]
    • “Multiple sclerosis  decreased abundance of Parabacteroides” [2016]
    • Parabacteroides distasonis, …are depleted in metabolic syndrome  patients ” [2016]
    • ” relative abundance of Bacteroides, Parabacteroides, Faecalibacterium, and Prevotella was reduced in Sjögren syndrome ” [2016]
    • Parabacteroides species (increased in functional constipation) ” [2016]
    • ” while genera … Parabacteroides, .. were correlated with negative mood. ” [2016]
    • “we observed a decrease in the relative abundance of Alistipes, Bilophila, Dialister, Parabacteroides, and Veillonella in the Autism spectrum disorders  cohort, ” [2017]
    • Parabacteroides distasonis significantly decreased in inflamed tissue ,, in  inflammatory bowel disease” [2013]
    • Parabacteroides significantly decreased in IBS and UC” [2010]
    • Parabacteroides  increased .. in primary osteoporosis (OP) patients, osteopenia (ON) [2017]
    • “In Crohn’s disease, Parabacteroides distasonis was the most represented, ” [2017]
    • Parabacteroides distasonis, Klebsiella variicola, etc., were enriched in gestational diabetes mellitus  patients, ” [2017]
  • Diet:
    • “The abundance of Parabacteroides distasonis (P = .025) and Faecalibacterium prausnitzii (P = .020) increased after long-term consumption of the Med diet and the low-fat, high-complex carbohydrate diet diet, “[2016]
    • “resistant starch  diet caused significant shifts in microbial composition/diversity, with increases in Parabacteroides, ” [2016]
      • “resistant starch type 4 … enrichment of three Bacteroides species and one each of Parabacteroides” [2016] [2010]
      • “Proportions of the genus Parabacteroides significantly increased with Soluble corn fiber  dose” [2016]
    • “Rhizoma Coptidis (coptis root, which is also known as rhizoma coptidis and Huang Lian) alkaloids … Parabacteroides distasonis was suppressed.” [2016]
    • “free high-fat…  and.. restrictive high-fat diet …. decreased abundance of Parabacteroides bacteria” [2016]
    • “Canola oil… elevating Parabacteroides” [2016]
    • “Lingonberries increased the cecal relative abundance of bacterial genera Bacteroides, Parabacteroidesand Clostridium. ” [2016]
    • “Supplementation with rhubarb extract changed the microbial ecosystem (assessed by 16S rDNA pyrosequencing) in favor of Akkermansia muciniphila and Parabacteroides goldsteinii. ” [2017]
    • “Oral administration of resveratrol…  an increased relative abundance of Bacteroides and Parabacteroides” [2017]
    • “increase in Firmicutes and Parabacteroides, were seen in Alcholol fed group ” [2017]
    • “both the low- and high-capsaicin diets…decreased the Bacteroides and Parabacteroides abundances at the genus level. ” [2017]
  •  Probiotics:
    • “Lactobacillus casei Shirota  supplementation led to enrichment of Parabacteroides. ”  [2015]
    • Increase of L. Gasseri was seen with increase of Parabacteroides in some studies. [2011]
    • “one of two strains of human-derived Lactobacillus reuteri …after treatment with either probiotic strain was mediated in part by reductions in the relative proportions of Klebsiella and Parabacteroides in the feces. ” [2012]
    • “Lactobacillus rhamnosus GG … encourages formation of biofilms with Parabacteroides”[2016]
    • “The Parabacteroides genus was significantly increased in the healthy volunteers who received L. paracasei CNCM I-4034 after the second washout.” [2015]
  •  Antibiotics:
    • “In half or more studies, the resistance rates in Bacteroides/Parabacteroides spp. to amoxicillin-clavulanate or ampicillin-sulbactam and clindamycin rose…. No resistance changes were found to tigecycline, in Bacteroides/Parabacteroides spp.  ” [2015]
    • “Although metronidazole susceptibility was universal, nim genes were not present. ” [2014]
    • “Amoxicillin-Clavulanate  associated changes included reduced prevalence of the genus Roseburia and increases in Escherichia, Parabacteroides, ” [2017]

Bottom Line


  • Lactobacillus rhamnosus GG
  • Lactobacillus paracasei
  • Lactobacillus casei Shirota (Yakult)
  • Lingonberries
  • Canole Oil
  • Resveratrol (Grapes, wine)
  • Rhubarb
  • Resistant Starch
  • Proton-pump inhibitors (PPI)
  • Amoxicillin-Clavulanate antibiotics


  • Lactobacillus reuteri
  • Capsaicin (chili peppers)
  • high-fat diet
  • Metronidazole antibiotics




Decreasing Barnesiella genus

Impact of various items on Barnesiella and other genus



PubMed Data

There are 30+ studies on PubMed

  • Disease
    • “The relative proportions of Blautia, Bryantella, Collinsella, Lactobacillus, Marvinbryantia, Turicibacter, Barnesiella, and Parabacteroides were significantly correlated with weight loss induced by tea extracts.” [2017]
    • Barnesiella are enriched in active [Relapsing Multiple Sclerosis] disease when compared to control and stable disease”[2017]
  • Diet:
    • Aspirin increases it.[2015]
    • ” Barnesiella species were increased (p = 0.03, 0.02, and 0.02, respectively) in the microbiome of  mice feed feed gluten containing food”, [2013]
  •  Prebiotics
    • ” the addition of medium-dose xylitol to a regular and HFD in experimental mice reduced the abundance of fecal Bacteroidetes phylum and the genus Barnesiella, ” [2017]
    • “oligosaccharides 2-fucosyllactose and 3-fucosyllactose…increased the levels of bacteria of the Porphyromonadaceae family in the intestinal gut, more precisely members of the genus Barnesiella ” [2014]
    • ” oligofructose …increases in the content of phylotypes primarily aligning within the Families Porphyromonadaceae (Genus Barnesiella) ” [2015]
  •  Probiotics:
    • ” after the end of probiotic [ Lactobacillus kefiri LKF01 DSM32079 (LKEF) ] administration Bacteroides, Barnesiella, Butyricicomonas, Clostridium, Haemophilus, Oscillibacter, Salmonella, Streptococcus, Subdoligranolum, and Veillonella were significantly reduced ” [2017]

Bottom Line

  • No Aspirin (other NSAID’s are fine)
  • Bile supplements
  • Reduce Glutten
  • Xylitol
  • No oligofructose
  • Lactobacillus kefiri



Theortical Protocol for Fecal Transplants for CFS/IBS etc

Fecal transplants for CFS/IBS etc typically result in almost immediate resolution of symptoms — followed weeks or months later with relapse.  Fecal transplant for Clostridium difficile has a high persistent success rate. (“of the approximately 200 cases reported, regardless of route, a mean success rate of 96% has been achieved.27” [2011])

So why the difference? In one case we are talking of displacing a single bacteria species (C. difficile); in the CFS case, we are having to both replace/reduce multiple strains AND restart other strains.

Determining suitable donor to match the patient

For C.difficile —  any apparently healthy donor (i.e. does not have C. difficile) is a viable candidate.

For CFS, the donor criteria should be:

  • Normal levels of
    • Lactobacillus
    • Bifidobacterium
    • E.Coli
    • Akkermansia

Matching uBiome profiles

It should be apparent that the donor should not have any bacteria genus > 1.5x that the recipient has > 1.5x.

Ideally, at the strain level (of any existing bacteria of the recipient) — Lactobacillus, Bifidobacterium and E.Coli should be extremely close matches.

To illustrate this aspect, examine this chart of L.Reuteri strains [Source 2009]


Pre-Transplant Preparation

6 weeks before the transplant, the recipient should be on a probiotic and diet regime based on their own uBiome to reduce the over growth.

Track microbiome shift immediately before and after transplant

To better improve the transplant method, I would advocate the following uBiome (or equivalent) samples be taken:

  • Two days before transplant of both recipient and donor (or on donation day)
  • Two, four, eight, sixteen, thirty-two, sixty-four days after the transplant

Recipient should keep on the probiotic and diet regime based on their own uBiome for at leasy 30 days after the transplant.

Logic: We want to suppress the overgrowth before the transplant and keep it suppressed while the transplant gets established.

To the best of my research, I have not seen any studies tracking the microbiome regularly after a transplant…. there appear to be process happenings with the failures that we need to understand better.

Again, this is just a theoretical protocol applying logic to known facts.

Are capsules the wrong way to take probiotics?

When I first received Symbioflor-1 and Symbioflor-2, it was a surprise because they were both liquids with droppers to take them.


A reader forwarded me a link to an PDF/Scan article from 1993 with interesting results using Oatmeal Soup. Lactobacillus was detected for almost 2 weeks after.

“A new oatmeal-based product for enteral feeding has been developed recently (26).
Oatmeal is mixed with water, supplemented with an enzyme mixture, heated, and then cooled and fermented with Lactobacillus spp. The product not only has an advantageous
nutritional composition but also contains high numbers of viable lactobacilli.”

Of course, one of the challenges is that we may actually be using too low dosage, for example:

“In another pilot clinical study, patients with chronic fatigue syndrome received 24 billion colony-forming units of Lactobacillus casei strain Shirota daily for 2 months, and a significant decrease in anxiety symptoms and a significant increase in Lactobacillus and Bifidobacteria were observed (Rao et al., 2009). ” [2017]

This week I received probiotics from with instructions being:


Start with one adult scoop (0.8 gram, 200 billion cfu’s) of the probiotic powder first thing in the morning on an empty stomach (30 minutes prior to eating). Dissolve the powder in a glass of dechlorinated water and drink it. Do this ONCE a day only. Stay at this dosage for about 3-5 days.

If you are not happy with the results, raise the dosage to two scoops a day, one in the morning and one at bedtime. After one week go to three scoops a day if you still are not getting the expected results. The highest dosage we recommend is four adult scoops a day. You can always lower the dosage or stop taking probiotics for a few days.

Why in water and on an empty stomach?  Simple — no food, the body does not turn on it’s acid productions (which it uses to digest food). If it is in a capsule, the acid must be there to dissolve the capsule… so the probiotics are immediately released into a dissolving-food acid environment.

These probiotics appear to Danisco originated probiotics, a Danish Company originally. Symbioflor is produced by a German company. Enterogermina is made in Italy and each serving is a viral of liquid. I suspect that unpublished research found delivery in water was superior. I also see the same with a probiotic manufactured in Italy. A Vet study (cited below) found that!


From comments on my post on L.Reuteri.



In animal studies we read:
“The method of probiotic administration can influence the performance and immune competence of birds, and administration via drinking water appears to be superior to the more conventional in-feed supplementation method.” [2008]

Bottom Line

Instead of capsules — consider:

  • Taking them in water (no chlorine or fluoride please!) before meals, or
  • Growing them (increasing their BCFU significantly) via yogurt or fermented porridge