Evidence map›Paper›PMID 41059007›Full record

ArticleFood & nutrition research2025

Pharmacokinetics of (6S)-5-Methyltetrahydrofolate dicholine salt compared to folic acid: a randomized double-blind single dose cross-over study.

Christiane Schön, Antje Micka, Daniel Menzel, Manfred Wilhelm, Rima Obeid

Abstract read
In one paragraph

Article in Food & nutrition research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Trial
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Christiane SchönBioTeSys GmbH, Esslingen, Germany.
Antje MickaBioTeSys GmbH, Esslingen, Germany.
Daniel MenzelBioTeSys GmbH, Esslingen, Germany.
Manfred WilhelmDepartment of Mathematics, Natural and Economic Sciences, Ulm University of Applied Sciences, Ulm, Germany.
Rima ObeidDepartment of Clinical Chemistry and Laboratory Medicine, University Hospital of the Saarland, Homburg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: (6S)-5-Methyltetrahydrofolate ((6S)-5-MethylTHF) is the physiological folate form in biological fluids. Salts of (6S)-5-MethylTHF may have advantages compared to folic acid and are increasingly used in foods and supplements. Objective and design: The present study describes the physicochemical properties of the (6S)-5-MethylTHF-2Chol salt as a source of methylfolate with respect to solubility, conductivity, and melting point. The pharmacokinetics of (6S)-5-MethylTHF-2Chol and folic acid were compared in a randomized controlled double-blind cross-over study using a single equimolar oral dose of each of the folate substances. Results: The solubility of the dicholine salt was very high (650 mg/mL in H Discussion and conclusions: The bioavailability of (6S)-5-MethylTHF-2Chol is higher compared to folic acid. The crystalline structure of (6S)-5-MethylTHF-2Chol and its water solubility are advantageous in terms of stability in nutraceutical products and absorption in the gut. (6S)-5-MethylTHF-2Chol is the source of folate that may enable the development of new applications.

Indexed as

(6S)-5-MethylTHF(6S)-5-MethylTHF-2-cholinebioavailabilityfolic acidOptifolin+®

Identifiers

PMID41059007
PMCPMC12499688

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.