Carlberg · Nutrients 2019 · narrative review · n=?

Nutrigenomics of Vitamin D.

Cited 200 times in the scientific literature.

Level 5 - mechanism / opinion, no new human data

Narrative review summarizing molecular mechanisms without primary empirical data or systematic search

PubMed 30901909 · doi:10.3390/nu11030676 · record verified 2026-08-26

What was done

This narrative review summarizes the genomic mechanisms of vitamin D, describing how its active metabolite, 1α,25-dihydroxyvitamin D₃, binds the vitamin D receptor to modulate the human epigenome and transcriptome. It synthesizes conceptual and mechanistic insights regarding calcium homeostasis, innate and adaptive immunity, evolutionary skin pigmentation, and personalized supplementation strategies.

What was found

The abstract reports no empirical data, sample sizes, or quantitative outcome measures. It provides a descriptive overview that active vitamin D regulates thousands of genomic loci involved in immune response and cellular metabolism.

Why it matters

It highlights vitamin D's function as a widespread epigenetic and transcriptomic regulator, offering a mechanistic framework for personalized supplementation strategies in metabolic, autoimmune, and musculoskeletal conditions.

Limits

This is a narrative review with no primary empirical human data, quantitative outcome measures, or systematic search methodology. It provides no clinical trial evidence evaluating specific personalized dosing regimens on clinical endpoints.

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