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

For updated information see Microbiome Prescription

DataPunk.Net Data

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

INHIBITED BY

• Proton-pump inhibitors (PPI)
• High fat diet
• Gallate [parent]
• Flaxseed
• High meat diet

ENHANCED BY

• β-Glucan
• Saccharomyces boulardii [parent]
• Resistant starch (type II)
• Gynostemma pentaphyllum
• Walnuts [parent]
• Resistant starch (type IV)
• Whole-grain barley
• Saccharomyces boulardii
• Berberine [parent]

ANTIBIOTIC RESISTANCE

• Vancomycin
• Teicoplanin 

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

Avoid

• Lactobacillus acidophilus
• Lactobacillus rhamnosus GG
• β-Glucan / Barley
• Saccharomyces boulardii 
• Resistant starch (type II, IV)
• Gynostemma pentaphyllum
• Walnuts (and likely pomegrantes)
• Berberine 
• Soy
• Salt
• Polydextrose
• Resistant maltodextrin.

Take

• Lactobacillus salivarius
• Lactobacillus paracasei
• Proton-pump inhibitors (PPI)
• High fat/meat diet
• Gallate (Green Tea)
• Flaxseed