Saccharomyces cerevisiae
No reference ID-gene sequence in NCBI yet Data sources
Formerly Candida robusta.
Like ours, its cells keep their DNA in a nucleus, and genomes like that run bigger, so we don’t rank it with the gut bacteria and archaea.
To scale: if its ID gene were 1 cm long, its genome would stretch 80 meters. Yours would stretch 21 kilometers. One reference genome; strains vary. NCBI GCF_000146045.2
What it can do
- Can ferment fiber Breaks down dietary fiber that our own enzymes can't.
All 13 capabilities and their evidence
| Capability | Verdict | Genome analysis | Lab tests | Published research |
|---|---|---|---|---|
| Can ferment fiber | Can | — | — | Papers say yes |
| Can make butyrate | Not checked | — | — | No papers |
| Can make propionate | Not checked | — | — | No papers |
| Can make lactic acid | Not checked | — | — | No papers |
| Can eat inulin | Not checked | — | — | No papers |
| Can eat resistant starch | Not checked | — | — | No papers |
| Can eat pectin | Not checked | — | — | No papers |
| Can use lactose | Not checked | — | — | No papers |
| Can feed on gut mucus | Not checked | — | — | No papers |
| Can change bile acids | Not checked | — | — | No papers |
| Can make B vitamins | Not checked | — | — | No papers |
| Can make hydrogen sulfide | Not checked | — | — | No papers |
| Can make methane | Not checked | — | — | No papers |
AGORA2 (Heinken et al. 2023) via VMH, CC BY 4.0 · BacDive (DSMZ), CC BY 4.0 · NJC19 (Lim et al., Scientific Data 2020), CC0
In healthy guts
Found in under 1% of healthy people.
- largest Segatella copri 6.2%
- 2nd largest Phocaeicola vulgatus 5.0%
- 3rd largest Faecalibacterium prausnitzii 4.7%
- 4th largest Bacteroides uniformis 3.2%
- 5th largest Agathobacter rectalis 2.5%
- 6th largest Alistipes putredinis 2.3%
- 7th largest Bifidobacterium longum 2.1%
- 8th largest Ruminococcus bromii 1.8%
- Saccharomyces cerevisiae under 0.01%
- 2,169 other microbes, each a sliver 56.7%
- 15.6%
On average, a sliver, under 0.01% of the microbes in a healthy gut.
Every group, drawn the same way. Only some samples record age or sex, so each group says how many people it comes from. Tap one to see it above.
In conditions
Compared with healthy people in the same studies, it’s less common in none and more common in none. Only studies that had both are counted.
A difference is an association: it doesn’t mean this microbe causes, prevents or treats any of these.
Recent research
Strains studied
How much each strain has been studied in people, not whether it works. Many trials test a strain inside a blend, so those are counted apart, and reviews are summaries of trials, so they're never counted as more trials.
2 strains of S. cerevisiae are named on product labels. 0 have human trials; 2 have none found yet, including CNCM I-1079, which is in 3 products.
S. cerevisiae CNCM I-1079
In 3 products →No human trials found yet
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No human trials found yet
Human trials, meta-analyses and systematic reviews naming the strain · animal and lab studies not counted · Data sources