Evidence map›Paper›PMID 33005455›Full record

ArticleJournal of nutrition and metabolism2020

A Review of Nutrients and Compounds, Which Promote or Inhibit Intestinal Iron Absorption: Making a Platform for Dietary Measures That Can Reduce Iron Uptake in Patients with Genetic Haemochromatosis.

Nils Thorm Milman

Open access · goldAbstract read
In one paragraph

Article in Journal of nutrition and metabolism, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 7 pooled it
7.2field-weighted citation impact, top 2% of its field
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

46 citing papers in PubMed, 7 syntheses or guidelines pooled it, 103 citations in OpenAlex.

  1. Pooled it
  2. Recent Advances in Research on Iron Metabolism, Ferritin, and Hepcidin.International journal of molecular sciences · 2026
    Pooled it
  3. Pooled it
  4. FIGO good practice recommendations on anemia in pregnancy, to reduce the incidence and impact of postpartum hemorrhage (PPH).International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025
    Guideline
  5. Guideline
  6. Pooled it
  7. Pooled it
  8. A review of the iron requirements and its determination in commercial poultry.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2026
    Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Dietary Factors Affect Brain Iron Accumulation and Parkinson's Disease Risk.medRxiv : the preprint server for health sciences · 2025
    Article
  18. Review
  19. Observational
  20. Associations Between theGastroenterology research · 2025
    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

1 author at 1 institution in 1 country.

Nils Thorm MilmanDepartment of Clinical Biochemistry, Næstved Hospital, University College Zealand, DK-4700 Næstved, Denmark.ORCID https://orcid.org/0000-0001-8396-9252
University College Absalon · DK

Funding

STUDIES OF REGIONAL FAT DISTRIBUTION AND ENERGY BALANCEK24DK002860 · NIDDK · UNIVERSITY OF WASHINGTON · PI WEIGLE, DAVID S · 2001 to 2005
$486k
NIDDK NIH HHS K24 DK002860
6 · The paper itself

Abstract

objectiveTo provide an overview of nutrients and compounds, which influence human intestinal iron absorption, thereby making a platform for elaboration of dietary recommendations that can reduce iron uptake in patients with genetic haemochromatosis.

designReview.

resultsThe most important promoters of iron absorption in foods are ascorbic acid, lactic acid (produced by fermentation), meat factors in animal meat, the presence of heme iron, and alcohol which stimulate iron uptake by inhibition of hepcidin expression. The most important inhibitors of iron uptake are phytic acid/phytates, polyphenols/tannins, proteins from soya beans, milk, eggs, and calcium. Oxalic acid/oxalate does not seem to influence iron uptake. Turmeric/curcumin may stimulate iron uptake through a decrease in hepcidin expression and inhibit uptake by complex formation with iron, but the net effect has not been clarified.

conclusionsIn haemochromatosis, iron absorption is enhanced due to a decreased expression of hepcidin. Dietary modifications that lower iron intake and decrease iron bioavailability may provide additional measures to reduce iron uptake from the foods. This could stimulate the patients' active cooperation in the treatment of their disorder and reduce the number of phlebotomies.

Identifiers

PMID33005455
PMCPMC7509542
OpenAlexW3086673566

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.