We use a subjective scale and leave the reader to translate the lab reports appropriately. If the bacteria are identified as bad/pathogenic and you are low, then do not enter them.
Bacteria Reported Level Also Known as Comment
Acinetobacter [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Acinetobacter| Acinetobacter Brisou and Prevot 1954
Actinomycetota [phylum]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Actinobacteraeota| Actinobacteraeota Oren et al. 2015| Actinobacteria| Actinobacteriota
Adlercreutzia [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Adlercreutzia| Adlercreutzia Maruo et al. 2008 emend. Nouioui et al. 2018
Agathobacter rectalis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Bacteroides rectalis" Hauduroy et al. 1937| "Pseudobacterium rectale" (Hauduroy et al. 1937) Krasil'nikov 1949| 'Roseburia rectale'| [Eubacterium] rectale| Agathobacter rectalis| Agathobacter rectalis (Hauduroy et al. 1937) Rosero et al. 2016| ATCC 33656| Bacteroides rectalis| CIP 105953| DSM 17629| Eubacterium rectale| Eubacterium rectale (Hauduroy et al. 1937) Prevot 1938| NCIMB 14373| not ATCC 25578| not VPI 0989| Pseudobacterium rectale| Roseburia rectale| strain A1-86| VPI 0990
Akkermansia muciniphila [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Akkermansia muciniphila| Akkermansia muciniphila Derrien et al. 2004 emend. Hahnke et al. 2016| Akkermansia sp. YL44| ATCC BAA-835| CIP 107961| strain Muc
High Levels linked to long-lived individuals
Anaerobutyricum hallii [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Anaerobutyricum hallii| Anaerobutyricum hallii (Holdeman and Moore 1974) Shetty et al. 2018| ATCC 27751| DSM 3353| Eubacterium hallii| Eubacterium hallii Holdeman and Moore 1974| VPI B4-27
Bacillota [phylum]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Bacillaeota| Bacillaeota Oren et al. 2015| Bacillota| Bacillus/Clostridium group| clostridial firmicutes| Clostridium group firmicutes| Firmacutes| Firmicutes| Firmicutes corrig. Gibbons and Murray 1978| Low G+C firmicutes| low G+C Gram-positive bacteria| low GC Gram+
Bacteroides [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Ristella" Prevot 1938| Bacteroides| Bacteroides Castellani and Chalmers 1919 (Approved Lists 1980) emend. Shah and Collins 1989| Capsularis| Capsularis Prevot 1938 (Approved Lists 1980)| Ristella
Bacteroidia [class]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Bacteroidetes| Bacteroidia| Bacteroidia Krieg 2012
Bilophila wadsworthia [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| ATCC 49260| Bilophila wadsworthia| Bilophila wadsworthia Baron et al. 1990| CCUG 32349| strain 7959| WAL 7959
Blastocystis hominis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Blastocystis hominis
Butyrivibrio [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Butyrivibrio| Butyrivibrio Bryant and Small 1956
Campylobacter [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Campylobacter| Campylobacter Sebald and Veron 1963 (Approved Lists 1980) emend. Tanner et al. 1981| Campylobacter Sebald and Veron 1963 (Approved Lists 1980) emend. Vandamme et al. 1991| Campylobacter Sebald and Veron 1963 (Approved Lists 1980) emend. Vandamme et al. 2010
High colorectal cancer risk
Candida [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Candida albicans [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Christensenellaceae [family]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Christensenellaceae| Christensenellaceae Morotomi et al. 2012
Citrobacter [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Citrobacter| Citrobacter Werkman and Gillen 1932| Levinea| Levinea Young et al. 1971
Pathogen
Clostridia [class]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Clostridia| Clostridia Rainey 2010
Clostridium butyricum [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Amylobacter navicula" (Reinke and Berthold 1879) Wehmer 1898| "Bacillus amylobacter" van Tieghem 1877| "Bacillus butyricus" (Prazmowski 1880) Flugge 1886| "Bacillus navicula" (Reinke and Berthold 1879) Chester 1898| "Bacterium navicula" Reinke and Berthold 1879| "Clostridium kainantoi" Takeda and Matsui 1955| "Clostridium naviculum" (Reinke and Berthold 1879) Prevot 1938| "Clostridium pseudotetanicum" (Prevot 1938) Smith and Hobbs 1974| "Metallacter amylobacter" (van Tieghem 1877) Trevisan 1879| Amylobacter navicula| ATCC 19398| Bacillus amylobacter| Bacillus butyricus| Bacillus navicula| Bacterium navicula| CCUG 4217| CIP 103309| Clostridium butyricum| Clostridium butyricum Prazmowski 1880| Clostridium kainantoi| Clostridium naviculum| Clostridium pseudotetanicum| DSM 10702| HAMBI 482| IAM 14194| IFO 13949| JCM 1391| KCTC 1786| KCTC 1871| LMG 1217| LMG:1217| Metallacter amylobacter| NBRC 13949| NCCB 89156| NCIMB 7423| NCTC 7423| VKM B-1773| VPI 3266
Clostridium perfringens [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Bacillus perfringens" Veillon and Zuber 1898| "Bacterium welchii" Migula 1900| 'Clostridium plagarum'| ATCC 13124| Bacillus perfringens| Bacterium welchii| BCRC 10913| CCRC 10913| CCRC:10913| CCUG 1795| CIP 103409| Clostridium perfringens| Clostridium perfringens (Veillon and Zuber 1898) Hauduroy et al. 1937| Clostridium plagarum| Clostridium sp. NCIM 2677| DSM 756| JCM 1290| LMG 11264| LMG:11264| NCAIM B.01417| NCCB 89165| NCIMB 6125| NCTC 8237
Food poisoning, gas gangrene
Clostridium sporogenes [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Bacillus sporogenes var. A" Metchnikoff 1908| "Clostridium sporogenes var. A" (Metchnikoff 1908) Prevot 1938| "Clostridium sporogenes" (Heller 1922) Bergey et al. 1923| "Metchnikovillus sporogenes" (sic) Heller 1922| ATCC 3584| Bacillus sporogenes var. A| BCRC 11259| CCRC 11259| CCRC:11259| CCUG 15941| CIP 106155| Clostridium sporogenes| Clostridium sporogenes (Metchnikoff 1908) Bergey et al. 1923| Clostridium sporogenes var. A| DSM 795| JCM 1416| LMG 8421| LMG:8421| Metchnikovillus sporogenes| NCIMB 10696| NCTC 13020
Coprococcus [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Coprococcus| Coprococcus Holdeman and Moore 1974
Cryptosporidium [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Cyclospora cayetanensis [No Rank]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Desulfovibrio piger [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| ATCC 29098| Desulfomonas pigra| Desulfomonas pigra Moore et al. 1976| Desulfovibrio piger| Desulfovibrio piger (Moore et al. 1976) Loubinoux et al. 2002| DSM 749
Dialister invisus [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| CCUG 47026| Dialister invisus| Dialister invisus Downes et al. 2003| DSM 15470| JCM 17566| strain E7.25
Dientamoeba fragilis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Dientamoeba fragilis
Encephalitozoon [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Entamoeba histolytica [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Enterobacter [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Aerobacter" Hormaeche and Edwards 1958| "Cloaca" Castellani and Chalmers 1919| Cloaca| Enterobacter| Enterobacter Hormaeche and Edwards 1960 (Approved Lists 1980) emend. Brady et al. 2013
Urinary and respiratory infections
Enterobius vermicularis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Enterococcus [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Enterococcus" Thiercelin and Jouhaud 1903| Enterococcus| Enterococcus (ex Thiercelin and Jouhaud 1903) Schleifer and Kilpper-Balz 1984
Escherichia coli [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Bacillus coli" Migula 1895| "Bacterium coli commune" Escherich 1885| "Bacterium coli" (Migula 1895) Lehmann and Neumann 1896| ATCC 11775| Bacillus coli| bacterium 10a| Bacterium coli| Bacterium coli commune| bacterium E3| CCUG 24| CCUG 29300| CIP 54.8| DSM 30083| E. coli| Enterococcus coli| Escherichia coli| Escherichia coli (Migula 1895) Castellani and Chalmers 1919| Escherichia sp. 3_2_53FAA| Escherichia sp. MAR| Escherichia/Shigella coli| JCM 1649| LMG 2092| LMG:2092| NBRC 102203| NCCB 54008| NCTC 9001
Diarrheal disease in children and travelers, Foodborne diarrhea outbreaks, hemorrhagic colitis, hemolytic-uremic syndrome
Faecalibacterium prausnitzii [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Bacillus mucosus anaerobius" Prausnitz 1922| "Bacteroides praussnitzii" (sic) Hauduroy et al. 1937| ATCC 27768| Bacillus mucosus anaerobius| Bacteroides praussnitzii| butyrate-producing bacterium A2-165| Faecalibacterium prausnitzii| Faecalibacterium prausnitzii (Hauduroy et al. 1937) Duncan et al. 2002| Fusobacterium prausnitzii| Fusobacterium prausnitzii (Hauduroy et al. 1937) Moore and Holdeman 1970 (Approved Lists 1980)| NCIMB 13872
Fusobacteriia [class]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Fusobacteria| Fusobacteriia| Fusobacteriia Staley and Whitman 2012
Fusobacterium [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Fusibacterium| Fusobacterium| Fusobacterium Knorr 1922
Periodontal disease, Lemierre syndrome, skin ulcers
Giardia intestinalis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Haemophilus [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Haemophilus| Haemophilus Winslow et al. 1917
Pathogen
Hafnia [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Hafnia| Hafnia Moller 1954
Hathewaya histolytica [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Bacillus histolyticus" Weinberg and Seguin 1916| "Weinbergillus histolyticus" (Weinberg and Seguin 1916) Heller 1922| ATCC 19401| Bacillus histolyticus| BCRC 10644| CCRC 10644| CCRC:10644| CCUG 4854| CIP 103713| Clostridium histolyticum| Clostridium histolyticum (Weinberg and Seguin 1916) Bergey et al. 1923 (Approved Lists 1980)| CN 1693| DSM 2158| Hathewaya histolytica| Hathewaya histolytica (Weinberg and Seguin 1916) Lawson and Rainey 2016| JCM 1403| NCIMB 503| NCTC 503| Weinbergillus histolyticus
Helicobacter [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Gastrospirillum| Helicobacter| Helicobacter Goodwin et al. 1989 emend. Vandamme et al. 1991
Hymenolepis [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Klebsiella [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Donovania" Anderson et al. 1944| "Hyalococcus" Schroeter 1886| Calymmatobacterium| Calymmatobacterium Aragao and Vianna 1913| Donovania| Hyalococcus| Klebsiella| Klebsiella Trevisan 1885 (Approved Lists 1980) emend. Carter et al. 1999| Klebsiella Trevisan 1885 (Approved Lists 1980) emend. Drancourt et al. 2001
Pathogen
Klebsiella pneumoniae [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Bacillus pneumoniae" (Schroeter 1886) Flugge 1886| "Bacterium pneumoniae crouposae" Zopf 1885| "Hyalococcus pneumoniae" Schroeter 1886| 'Klebsiella aerogenes' (Kruse) Taylor et al. 1956| ATCC 13883| Bacillus pneumoniae| Bacterium pneumoniae crouposae| CCUG 225| CIP 82.91| DSM 30104| HAMBI 450| Hyalococcus pneumoniae| IFO 14940| JCM 1662| Klebsiella pneumoniae| Klebsiella pneumoniae (Schroeter 1886) Trevisan 1887| Klebsiella pneumoniae aerogenes| Klebsiella sp. 2N3| Klebsiella sp. C1(2016)| Klebsiella sp. M-AI-2| Klebsiella sp. PB12| Klebsiella sp. RCE-7| LMG 2095| LMG:2095| NBRC 14940| NCTC 9633
H00301 Klebsiella infection, Pneumonia
Lactobacillus [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Lactobacillus| Lactobacillus Beijerinck 1901 (Approved Lists 1980) emend. Cai et al. 2012| Lactobacillus Beijerinck 1901 (Approved Lists 1980) emend. Haakensen et al. 2009| Paralactobacillus| Paralactobacillus Leisner et al. 2000
Pathogen
Methanobrevibacter [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Methanobrevibacter| Methanobrevibacter Balch and Wolfe 1981
Microsporidia [phylum]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Morganella [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Morganella| Morganella Fulton 1943
Pathogen
Oxalobacter formigenes [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| ATCC 35274| CIP 106513| Oxalobacter formigenes| Oxalobacter formigenes Allison et al. 1985| strain OxB
Prevotella [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Prevotella| Prevotella Shah and Collins 1990 emend. Sakamoto and Ohkuma 2012| Prevotella Shah and Collins 1990 emend. Willems and Collins 1995| Xylanibacter| Xylanibacter Ueki et al. 2006
Proteus mirabilis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| ATCC 29906| CCUG 26767| CIP 103181| DSM 4479| JCM 1669| LMG 3257| LMG:3257| NCTC 11938| Proteus mirabilis| Proteus mirabilis Hauser 1885
Providencia [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Providencia| Providencia Ewing 1962
Pathogen
Pseudomonadota [phylum]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Alphaproteobacteraeota| Alphaproteobacteraeota Oren et al. 2015| Alphaproteobacteriota| Proteobacteria| Proteobacteria [class] Stackebrandt et al. 1988| Proteobacteria Garrity et al. 2005| purple bacteria| purple bacteria and relatives| purple non-sulfur bacteria| purple photosynthetic bacteria| purple photosynthetic bacteria and relatives
Roseburia [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Roseburia| Roseburia Stanton and Savage 1983| Roseburya| Roseburyella
Ruminococcus [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Ruminococcus| Ruminococcus Sijpesteijn 1948
Segatella copri [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| DSM 18205| JCM 13464| Prevotella copri| Prevotella copri Hayashi et al. 2007 emend. Hahnke et al. 2016| Prevotella sp. 'Indica Stool'| Prevotella sp. CB18| Prevotella sp. CB23| Prevotella sp. CB26| Prevotella sp. CB28| Prevotella sp. CB7| strain CB7
Over 70%ile Indicator of mycotoxin present
Serratia [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Serratia| Serratia Bizio 1823
Pneumonia, urinary tract infections
Slackia [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Slackia| Slackia Wade et al. 1999 emend. Nagai et al. 2010
Strongyloides [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Strongyloides stercoralis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Verrucomicrobiota [phylum]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Verrucomicrobaeota| Verrucomicrobaeota Oren et al. 2015| Verrucomicrobia| Verrucomicrobia (Hedlund et al. 1997) Yoon et al. 2010| Verrucomicrobia Hedlund 2012| Verrucomicrobiota