Probiotics and Vitamin D3: what the published research says
PubMed indexes 8 records that name Probiotics and Vitamin D3 together, either in the title or in an interaction, co-administration, or pharmacokinetic context. Each one is listed below with its study design and, where the abstract states one, the authors’ own conclusion, quoted and linked. This page reports that literature. It does not tell you whether to combine them.
Every statement below is attributed to a named, dated, linked source.
This page lists published research relevant to Probiotics and Vitamin D3. It deliberately does not state whether the combination is safe, whether it interacts, in which direction, at what dose, or how far apart to take them.
A study appearing here is not proof that an interaction exists. Two substances can be named together in a paper that never tested them in combination, and a source listed as background may cover only one of them.
Findings are quoted from each abstract as the authors wrote them. NutriStack has not re-analysed, pooled, or reconciled them, and they may disagree with each other.
NutriStack’s own interaction assessment for this pair is not published here. It has not completed qualified-human clinical review, so it is withheld from search. See the publication gate.
Nothing here is medical advice. Decisions about prescription medication and supplements belong with your prescriber or pharmacist, who can see your full regimen.
The research
8 studies naming Probiotics and Vitamin D3.
Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.
“CONCLUSION: This study underscores the potential of probiotic-based mucoadhesive drug delivery systems in oral health management. It highlights their role in reducing reliance on conventional antibiotics, mitigating bacterial resistance, and improving patient compliance.”
Names both Probiotics and Vitamin D3 in its title.
Medical oncology (Northwood, London, England) · 2024 · PMID 38592504
Animal study
“The treated groups (except 6) had significantly higher expression of Bax/Caspase 3 genes and lower expression of Bcl-2 genes than the control group (P < 0.05, 0.01). Coadministration of Dox with probiotics and vitamin D3 showed promising results in reducing tumor size, protecting intestinal tissue and influencing gene expression, suggesting a strategy to enhance the effectiveness of breast cancer treatment while reducing side effects.”
Names both Probiotics and Vitamin D3 in its title.
“VitD3 and LGG/p40 synergistically improve the severity of colitis by increasing colonic VDR expression and promoting colonic epithelial proliferation.”
Names both Probiotics and Vitamin D3 in its title.
“It suggests the synergistic effects of Bifidobacterium longum and active vitamin D on the antibacterial and anti-inflammatory responses in Salmonella colitis. Therefore, our in vivo studies demonstrated that the combination of probiotic Bifidobacterium longum and active vitamin D3 has the synergistic effects on reducing the severity of Salmonella colitis via the suppression of inflammatory responses, and blocking the translocation of bacteria through the enhancement of…”
Names both Probiotics and Vitamin D3 in its title.
“Co-supplementation of vitamin D and probiotics generated greater health benefits than its comparators did. More studies in other diseases and various populations are needed to confirm these findings and to elucidate the optimal form, composition, and frequency of this co-supplementation.”
Names Probiotics and Vitamin D3 together in an interaction, co-administration, or pharmacokinetic context.
Limitations
What this evidence cannot tell you.
Search-based evidence indexes have real limits, and it is worth being explicit about them:
Selection. These records were found by searching PubMed titles and abstracts for both substance names alongside interaction and pharmacokinetic terms. Relevant work that phrases things differently, or is not indexed in PubMed, will be missing.
No effect size. The quoted conclusions are the authors’ words about their own study. We have not extracted effect direction or magnitude, and a single study’s conclusion is not a consensus.
Population mismatch. Findings in healthy volunteers, animals, or a specific patient group may not transfer to you, your dose, or your formulation.
Absence is not safety. Few published studies means the combination is under-studied, which is not the same as established as safe.
Nearby evidence
Other pairs with published research.
Pages covering Probiotics or Vitamin D3 alongside a different substance.
NutriStack is a free iPhone app for organising a supplement routine: what you take, when, and what the published record says about it. Its exploratory interaction checker covers Probiotics, Vitamin D3, and several hundred other substances.
The checker is a research and organisation tool, not a clinical decision aid, and its per-pair assessments are excluded from search until they pass claim-level review.
NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.