NSTK · 01.2026Independent supplement reference
NutriStack
Edition 1.0Updated August 1, 2026

Supplement × Supplement·Evidence index

Lactobacillus Rhamnosus and Vitamin D3: what the published research says

PubMed indexes 5 records that name Lactobacillus Rhamnosus 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.

Read this first

An evidence index, not guidance.

Every statement below is attributed to a named, dated, linked source.

This page lists published research relevant to Lactobacillus Rhamnosus 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.

The research

5 studies naming Lactobacillus Rhamnosus and Vitamin D3.

Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.

Efficacy of a Preparation based on Symbiotic Association Between Inulin, FOS, L. rhamnosus GG, Bromelin, Boswellia, Vitamin D3, Quercetin and L-tryptophan in Mild-to-Moderate Ulcerative Colitis: A Pilot Retrospective Multicenter Study.

Reviews on recent clinical trials · 2025 · PMID 40785172

“In this preliminary study, the supplementation with the symbiotic association between inulin, fructooligosaccharides (FOS), Lactobacillus rhamnosus GG, bromelin, Boswellia, vitamin D3, quercetin and L-tryptophanon offers real-world potential in controlling disease activity in patients with mild-to-moderate UC. Further multicentre, placebo-controlled, double-blind clinical trials are needed to validate our results on larger cohorts of patients with UC.”

Mocci et al. · Authors' conclusion

Names both Lactobacillus Rhamnosus and Vitamin D3 in its title.

Exploratory pilot trial of a multicomponent immunonutritional supplement in children with allergic asthma and rhinitis: The INAPRA study.

International immunopharmacology · 2026 · PMID 42202393

Randomized Controlled TrialMulticenter Study

“In this exploratory pilot RCT, six-month supplementation with a multicomponent immunonutritional formulation was associated with improvement of allergic asthma and rhinitis control in children. The clinical improvement paralleled with beneficial modulatory actions in immune cells.”

Caldaria et al. · Authors' conclusion

Names Lactobacillus Rhamnosus 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:

NutriStack

Track what you actually take.

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 Lactobacillus Rhamnosus, 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.