Evidence map›Paper›PMID 25808116›Full record

Trial reportEuropean journal of nutrition2016

The effect of flaxseed dose on circulating concentrations of alpha-linolenic acid and secoisolariciresinol diglucoside derived enterolignans in young, healthy adults.

Andrea L Edel, Amanda F Patenaude, Melanie N Richard, Elena Dibrov, J Alejandro Austria, Harold M Aukema, Grant N Pierce, Michel Aliani

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in European journal of nutrition, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 15% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Genetic Variation in Steroid and Xenobiotic Metabolizing Pathways and Enterolactone Excretion Before and After Flaxseed Intervention in African American and European American Women.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2019
    Trial
  4. Trial
  5. Review
  6. Anti-Oxidant and Anti-Cancer Properties of Flaxseed.International journal of molecular sciences · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Phytoestrogen Metabolism by Adult Human Gut Microbiota.Molecules (Basel, Switzerland) · 2016
    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

8 authors at 2 institutions in 1 country.

Andrea L EdelDepartment of Physiology and Pathophysiology, Faculty of Health Sciences, College of Medicine and Pharmacy, Canadian Centre for Agri-food Research in Health and Medicine and Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, University of Manitoba, Winnipeg, MB, Canada.
Amanda F PatenaudeDepartment of Physiology and Pathophysiology, Faculty of Health Sciences, College of Medicine and Pharmacy, Canadian Centre for Agri-food Research in Health and Medicine and Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, University of Manitoba, Winnipeg, MB, Canada.
Melanie N RichardDepartment of Physiology and Pathophysiology, Faculty of Health Sciences, College of Medicine and Pharmacy, Canadian Centre for Agri-food Research in Health and Medicine and Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, University of Manitoba, Winnipeg, MB, Canada.
Elena DibrovDepartment of Physiology and Pathophysiology, Faculty of Health Sciences, College of Medicine and Pharmacy, Canadian Centre for Agri-food Research in Health and Medicine and Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, University of Manitoba, Winnipeg, MB, Canada.
J Alejandro AustriaDepartment of Physiology and Pathophysiology, Faculty of Health Sciences, College of Medicine and Pharmacy, Canadian Centre for Agri-food Research in Health and Medicine and Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, University of Manitoba, Winnipeg, MB, Canada.
Harold M AukemaDepartment of Human Nutritional Sciences, Faculty of Agricultural and Food Sciences, Canadian Centre for Agri-food Research in Health and Medicine, St. Boniface Hospital Research Centre, University of Manitoba, 351 Tache Ave., Winnipeg, MB, R2H 2A6, Canada.
Grant N PierceDepartment of Physiology and Pathophysiology, Faculty of Health Sciences, College of Medicine and Pharmacy, Canadian Centre for Agri-food Research in Health and Medicine and Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, University of Manitoba, Winnipeg, MB, Canada.
Michel AlianiDepartment of Human Nutritional Sciences, Faculty of Agricultural and Food Sciences, Canadian Centre for Agri-food Research in Health and Medicine, St. Boniface Hospital Research Centre, University of Manitoba, 351 Tache Ave., Winnipeg, MB, R2H 2A6, Canada. aliani@cc.umanitoba.ca.
University of Manitoba · CASt. Boniface Hospital · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

purposeThe primary endpoint was to determine the plasma concentration of alpha-linolenic acid (ALA), and its metabolites, following milled flaxseed consumption at four doses. Secondary outcomes focused on plasma enterolignan concentrations and the effects on tolerability, platelet aggregation, plasma lipids and urinary thromboxane levels.

methodsHealthy, younger adults (n = 34; 18-49 years old) were randomized into four groups consuming one muffin daily for 30 days fortified with 10, 20, 30 or 40 g of milled flaxseed. Blood and urine were collected at baseline and 4 weeks.

resultsPlasma ALA concentrations increased with all flaxseed doses (P < 0.01), except the 20 g/day dose (P = 0.10), yet there was no significant dose-dependent response (P = 0.81). Only with the 30 g/day diet were n-3 polyunsaturated fatty acids (P = 0.007), and eicosapentaenoic acid (EPA) (P = 0.047) increased from baseline values. Docosapentaenoic acid and docosahexaenoic acid were not detected at any dose. Plasma total enterolignan concentrations significantly increased over time in all treatment groups, yet despite a dose-dependent tendency, no between-group differences were detected (P = 0.22). Flaxseed was well tolerated, even at the highest dose, as there were no reported adverse events, changes in cholesterol, platelet aggregation or urinary 11-dehydro-thromboxane B2.

conclusionsIn healthy, younger adults, 10 g/day of milled flaxseed consumption is sufficient to significantly increase circulating ALA and total enterolignan concentrations; however, 30 g/day is required to convert ALA to EPA. Although all doses were well tolerated, 40 g/day is too low to attenuate cholesterol in this population.

Indexed as

AdolescentAdultalpha-Linolenic AcidButylene GlycolsCholesterolCholesterol, HDLCholesterol, LDLDietDocosahexaenoic AcidsEicosapentaenoic AcidFatty Acids, Omega-3Fatty Acids, UnsaturatedFemaleFlaxGlucosidesHumans11-dehydro-thromboxane B2alpha-Linolenic AcidButylene GlycolsCholesterolCholesterol, HDLCholesterol, LDLDocosahexaenoic Acidsdocosapentaenoic acidEicosapentaenoic AcidFatty Acids, Omega-3Fatty Acids, UnsaturatedGlucosidesPlant Preparationssecoisolariciresinol diglucosideThromboxane B2TriglyceridesAlpha-linolenic acidCardiovascular diseaseEnterolignansFlaxseedPlatelets

Identifiers

PMID25808116
OpenAlexW1995029718

What OpenQuestion holds

Textmetadata
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.