Bacteria as vitamin suppliers to their host: a gut microbiota perspective.
Level 5 - mechanism / opinion, no new human data
Narrative review without systematic methodology or primary human experimental data.
PubMed 22940212 · doi:10.1016/j.copbio.2012.08.005
What was done
Narrative review describing the capacity of food-associated lactic acid bacteria (LAB) and human gut commensals (such as bifidobacteria) for de novo synthesis of B-group vitamins (including folate, riboflavin, and cobalamin/vitamin B12). The authors review the application of LAB as starter cultures to produce vitamin-enriched fermented foods and discuss genetic pathways for vitamin biosynthesis in commensal bacteria.
What was found
The abstract provides no quantitative data or numerical outcomes. It qualitatively notes that lactic acid bacteria and bifidobacteria can produce folate and riboflavin during milk fermentation, and that specific LAB strains can synthesize cobalamin.
Why it matters
Bacterial vitamin biosynthesis represents a viable biotechnological approach to fortify fermented foods naturally and underscores the nutritional role of commensal gut microbes in host health.
Limits
As a narrative review, it presents no original empirical human data or systematic search methodology. Quantitative yields, in vivo bioavailability, and actual clinical impacts on human vitamin deficiency are not reported in the abstract.
Cited by
- supports Human gut bacteria synthesize B vitamins and vitamin K.