Understanding of the relationships between cognitive function, physical activity, and vitamin D in relation to dysmobility syndrome

The gap

Evidence profile

Sourced from the future work and discussion and stated research gap of the source papers, classified as general, drawn from work published between 2024 and 2026, spanning 5 journals. Those papers have been cited 43 times in total.

Supporting evidence — 5 representative gaps

• Neuroprotective Roles of Vitamin D: Bridging the Gap Between Mechanisms and Clinical Applications in Cognitive Decline (2025) · International Journal of Molecular Sciences · cited 24× · doi

  6.1. Gaps and Challenges in Current Research Current research on the relationship between vitamin D and cognition faces significant challenges due to limitations in study design, inconsistent measurement methods for cognitive function and vitamin D levels, and individual variability driven by genetic and environmental factors [74]. These challenges are further complicated by the need for a deeper understanding of the underlying mechanisms, the effectiveness of vitamin D supplementation, and the development of personalized treatment approaches. Translating research into clinical guidelines and public health strategies requires interdisciplinary collaboration and increased awareness of optimal vitamin D status for brain health [159]. 6.1.1. Inconsistency in Research Findings and Clinical Translation A key disparity exists between animal studies and human clinical trials regarding vitamin D’s effect on cognition. Animal research consistently shows that vitamin D de- ficiency impairs brain function, contributing to various neurological conditions [117]. In contrast, human studies offer mixed results. While most cross-sectional and longitudi- nal studies suggest a protective effect, clinical trials often show negative or inconsistent findings [40,76]. Potential reasons for this discrepancy include differences in vitamin D metabolism, brain structure, and environmental factors between species. Methodological variations and challenges in assessing cognitive function may also contribute to these divergent outcomes, revealing a significant gap in understanding how animal findings translate to human therapies. 6.1.2. Methodological Challenges and Variability in Vitamin D Measurement Some studies have highlighted the difficulties in establishing a causal relationship between vitamin D and cognitive outcomes. A review noted that the connection between serum 25OHD levels and cognitive function remains unclear, influenced by methodological differences, cognitive assessment types, and vitamin D’s cellular actions [160]. Additionally, randomized controlled trials are essential to evaluating the benefits of vitamin D supple- mentation and lifestyle interventions in individuals with MCI and dementia [161]. The lack of standardized methods for measuring vitamin D levels contributes to substantial variabil- ity in research findings. Variations in laboratory techniques, interference from structurally similar metabolites, and disagreement on normal vitamin D levels complicate interpretation and hinder definitive conclusions about vitamin D’s role in cognition [76,162]. Moreover, the US Preventive Services Task Force has determined that current evidence does not support routine vitamin D screening or supplementation for primary prevention of cardiovascular disease and cancer [163]. Int. J. Mol. Sci. 2025, 26, 7146 21 of 31 6.1.3. Complexity of Vitamin D’s Role and Its Mechanisms Despite growing interest in vitamin D’s role beyond bone health, its precise mec

  generalfuture work
  Keywords: vitamin challenges cognitive function levels clinical current cognition health brain animal human trials methodological role
• Cognitive profile and inflammatory markers in children and adolescents with specific learning disorder: a cross-sectional study (2026) · Frontiers in Pediatrics · cited 1× · doi

  Author contributions the SLD group, higher cell-based Overall, higher PIV and lower vitamin B12 levels were observed in the SLD group relative to healthy controls, and inflammatory within composites—most consistently PIV—were associated with poorer processing speed and working memory. Future studies should pursue longitudinal pediatric designs with repeated immune/micronutrient assessments, detailed diet and sleep measures, and neuroimaging of white matter pathways supporting speed and working memory. Trials targeting nutritional optimization speculatively, (B12) interventions that attenuate low-grade inflammation may help clarify whether these biological pathways are meaningfully related in SLD. Accordingly, the present findings should be interpreted as associations within a case–control framework rather than as evidence of stand-alone diagnostic or predictive utility or disorder specificity. cognitive domains efficiency-based and, more to UB: Conceptualization, Methodology, Formal analysis, Investigation, Data curation, Writing – original draft, Writing – review & editing, Supervision. BA: Conceptualization, Writing – review & editing, Data curation, Investigation, Writing – original draft, Methodology.

  generalfuture work
  Keywords: writing group higher based within speed working memory pathways conceptualization methodology investigation curation original draft
• Effects of Dietary Interventions on Cognitive Outcomes (2025) · Nutrients · cited 12× · doi

  While higher in- take of B vitamins (particularly B1 and B2), omega-3 PUFAs, and antioxidants is associ- ated with better executive functioning in observational studies, randomized trials yield  mixed results. The  MIND  diet,  in  particular,  is  associated  with  enhanced  memory  performance  in  cognitively  healthy  adults, although evidence remains scarce in MCI or dementia populations.

  generaldiscussion
  Keywords: higher take vitamins particularly omega pufas antioxidants associ ated better executive functioning observational randomized trials
• Prenatal Vitamin B12 and Children’s Brain Development and Cognitive, Language and Motor Outcomes: A Scoping Review (2024) · Children · cited 6× · doi

  Overall, the findings are mixed and further research is needed to clarify the effects of maternal vitamin B12 supplementation, status, and intake on children’s brain development and neurodevelopmental outcomes. The mixed findings of these RCTs suggest that future research with longer periods of child follow-up is needed to determine if vitamin B12 supplementation during pregnancy improves child neurodevelopment.

  generaldiscussion
  Keywords: mixed needed vitamin supplementation child overall further clarify effects maternal status intake children brain development
• Mediating effects of physical activity and vitamin D on the association between cognition and dysmobility syndrome in Korean older women (2026) · PeerJ · doi

  There is a lack of understanding of the relationships between cognitive function, physical activity, and vitamin D in relation to dysmobility syndrome. There is a need to examine the mediation effects of physical activity and vitamin D on the relationship between cognitive function and dysmobility syndrome.

  generalstated research gapevidence 5/5
  Keywords: there lack understanding relationships between cognitive function physical

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