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Supplement evidence

181 / 575Research index — evidence review pending

B Vitamins

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The short answer

No use has passed JIVANA's study-level evidence review yet.

Evidence and scope
Research gathered — evidence review pending

This status does not grade the ingredient for every goal, outcome, or person.

Important limitation
No efficacy conclusion has passed JIVANA's study-level review yet. The linked research index is for discovery, not a benefit claim.
Before deciding
Identity, dose, interactions, product quality, and regulatory status still require review. Do not use this provisional page to decide whether to take it.

02 / EVIDENCE

What the research says

We keep supportive, mixed, negative, safety, and contextual findings together. The headline never replaces the underlying papers.

Study-level extraction is not complete yet.

This research-index page is live so the topic, source trail, and evidence boundaries are visible. Individual studies have not yet passed the JIVANA extraction and review process, so we do not manufacture an efficacy conclusion or research count from broad search results.

Unscreened discovery appendix—not evidence382 candidate publicationsSearch run: Aug 21, 2026

Complete for the displayed PubMed query at the search timestamp—not for all databases or every possible synonym. Candidates can be irrelevant, duplicate the same study, or report negative findings. They are never summed as evidence or participants until screened.

03 / SOURCES

Start with the source material

The live search is for discovery only. Search-result counts change and are not included in the audited totals above.

Recent PubMed discovery recordsDirect links to the first 12 records returned by the reproducible search. These are discovery candidates—not reviewed summaries or a count of supportive findings.
  1. Combined B-vitamin supplementation on homocysteine and vascular outcomes in coronary heart disease: a meta-analysis.Guo L, Shi X, Wang G et al. · 2026 · Annals of medicine · PMID 41615824Open on PubMed
  2. Protocol for a randomised, double-blind, placebo-controlled clinical trial on the effects of high-dose vitamin B multivitamin supplementation with and without Passiflora incarnata on neural connectivity and oxidative metabolism in healthy adults.Yeong CH, Wong YH, Lim SY et al. · 2026 · BMJ open · PMID 42595368Open on PubMed
  3. Marked Changes in One-Carbon Metabolism on a Low-Carbohydrate High-Fat Diet: A Randomized Controlled Trial (CARBFUNC).Bråtveit M, Laupsa Borge J, Bjørnstad T et al. · 2026 · The Journal of nutrition · PMID 42235826Open on PubMed
  4. Global evidence on vitamins in human milk: A 2002-2022 systematic review with a focus on China and implications for maternal diet and infant formula.Yang Y, Ni X, Liu N et al. · 2026 · Food research international (Ottawa, Ont.) · PMID 41956646Open on PubMed
  5. Effects of B vitamins and magnesium on fatigue, disease activity and quality of life in inflammatory bowel disease.Ramezani E, Bager P, Torabinasab K et al. · 2026 · Scientific reports · PMID 42010310Open on PubMed
  6. Improved HDL, LDL and total cholesterol levels following a 3-month administration of Mentha spicata leaf extract and Amaranthus caudatus seed flour extracts, flavonoids and B vitamins. A placebo-controlled, double-blind, randomized clinical trial.Di Minno A, Morone MV, Cordara M et al. · 2026 · Nutrition, metabolism, and cardiovascular diseases : NMCD · PMID 41519619Open on PubMed
  7. Impact of Mandatory Grain Fortification With Folic Acid on Population Folate Concentrations and the Risk of Folate Deficiency and Insufficiency: A Systematic Review and Meta-Analysis.Parker J, Kisho A, Hou S et al. · 2026 · The Journal of nutrition · PMID 41461274Open on PubMed
  8. Evaluation of Alpha-Lipoic Acid and B Vitamins on Quality of Life and Metabolic Parameters among Diabetic Patients with Symptomatic Distal Symmetric Polyneuropathy: A Randomized Controlled Trial.Draman N, Che Abdullah CNA, Mohamad N et al. · 2026 · Current diabetes reviews · PMID 41935358Open on PubMed
  9. Efficacy of B Vitamin Supplementation on Global Cognitive Function in Older Adults: A Systematic Review and Meta-analysis.Berg J, Grant R, Siervo M et al. · 2025 · Nutrition reviews · PMID 40966571Open on PubMed
  10. Role of B vitamins in modulating homocysteine and metabolic pathways linked to brain atrophy: Metabolomics insights from the VITACOG trial.Kacerova T, Yates AG, Dai J et al. · 2025 · Alzheimer's & dementia : the journal of the Alzheimer's Association · PMID 40684250Open on PubMed
  11. Associations between Diet and Cognitive Function in Stroke Survivors: A Systematic Review and Meta-analysis.Amanat S, Dordevic AL, Brodtmann A et al. · 2025 · Advances in nutrition (Bethesda, Md.) · PMID 40355028Open on PubMed
  12. Vitamin B(6) status is related to disease severity and modulated by endurance exercise in individuals with multiple sclerosis: a secondary analysis of a randomized controlled trial.Belen S, Patt N, Kupjetz M et al. · 2025 · The American journal of clinical nutrition · PMID 40252731Open on PubMed

04 / EXPERT CONTEXT

Expert context—not evidence

Expert positions are dated context—not scientific evidence. They never raise the evidence status or become consensus by repetition.

No direct, source-verified endorsement is currently recorded. Research authorship or discussion alone is not treated as endorsement.

Educational information only—not medical advice. Product quality, dose, medicines, pregnancy, and kidney or liver disease can materially change safety.