Jeg jobber både med ernæringsepidemiologi og klinisk ernæring. 

Epidemiologiske prosjekter omfatter analyse av kosthold og kroniske, ikke-smittsomme sykdommer som hjerte-kar, kreft, fedme og diabetes, men også nevrodegenerative sykdommer. Jeg har ledet ernæringsdelen av HUSK3 (Helseundersøkelsen i Hordaland, 2018-2021, se https://husk.w.uib.no/. I HUSK undersøker vi,i en eldre kohorte, sammenhengen av kosthold med vektutvikling og muskel helse, forkomst av diabetes og med Parkinson sykdom. Også undersøker vi kosthold og risiko for Parkinson sykdom i den europeiske EPIC kohorten, i lag med DKFZ Heidelberg i Tyskland (https://www.dkfz.de/epidemiologie-von-krebserkrankungen/epic). Videre er jeg interessert i årsaker og konsekvenser av sykdoms-relatert underernæring.  

Vi gjennomfører kliniske studier med matvarer, ingredienser og med næringsstoffer. Vi er spesielt interessert i helseeffekter av brød, fullkorn og kostfiber, og har gjennomført en del studier med brød, beta-glucan og andre kostfibertyper. Vi fikk støtte fra EU til et internasjonalt forskningsprosjekt Carbhealth (https://www.healthydietforhealthylife.eu/project/carbhealth) og gjennomførte også en store vekttap-studie med ulike dietter som del av Mohn Nutrition Research Laboratory (Trond Mohn stiftelse (tidligere Bergen research foundation) https://www.nohnfoundation.no/); https://www.uib.no/en/nutrition/120713/about-mohn-nutrition-research-lab

Videre er jeg interessert i helse effekter av mikroplast. Her forsker vi på dyrestudier på effekter av mikroplast, men gjennomfører også observasjonsstudier hos mennesker. Vi fikk her støtte fra UiB gjennom det marine satsningsområdet og  EU gjennom SEAS programmet https://www4.uib.no/en/research/research-projects/seas-shaping-european-research-leaders-for-marine-sustainability

 

 

Flere foredrag både i Norge og andre land, for eksempel 

https://www.dge.de/veranstaltungen/tagungen/arbeitstagung-2025/

Medlem i "systematic review centre" til nordiske ernæringsanbefalinger 2023 (aktiv fra 2020-2023)

Nestleder i Norsk selskap for ernæring https://norskselskapforernaering.no/

Styremedlem i Plastnetverk ved UiB og organisasjon av årlig mikroplast symposium 

Courses

Bachelorprogram in Human Nutrition

NUTR100   Introduction to clinical nutrition

NUTR203   Nutrition Physiology

NUTR290   Bachelor thesis

 

Masterprogram in Clinical Nutrition

ELMED326 Genetic disorders in Nutrient Metabolism

NUCLI390A og B Master thesis 

Vitenskapelig artikkel

• Benuarda Toto; Alice Refosco; Maria O'Keeffe et al. (2022). Intestinal permeability and gene expression after polyethylene and polyamide microplastic ingestion in Wistar rats. (ekstern lenke)
• Theogene Habumugisha; Ingunn Marie Stadskleiv Engebretsen; Inger Elisabeth Måren et al. (2023). Reducing meat and/or dairy consumption in adults: a systematic review and meta-analysis of effects on protein intake, anthropometric values, and body composition. (ekstern lenke)
• Åslaug Matre Anfinsen; Hanne Rosendahl-Riise; Ottar Kjell Nygård et al. (2023). Exploratory analyses on the effect of time since last meal on concentrations of amino acids, lipids, one-carbon metabolites, and vitamins in the Hordaland Health Study. (ekstern lenke)
• Jutta Dierkes; Stefan Dietrich; Klaus Abraham et al. (2022). Stable isotope ratios of nitrogen and carbon as biomarkers of a vegan diet. (ekstern lenke)
• Zoya Sabir; Jutta Dierkes; Anette Hjartåker et al. (2023). The association of dietary patterns with muscle mass and strength in old age: The Hordaland Health Study. (ekstern lenke)
• Marte Almenning Trollebø; Eli Skeie; Ingrid Revheim et al. (2022). Comparison of nutritional risk screening with NRS2002 and the GLIM diagnostic criteria for malnutrition in hospitalized patients. (ekstern lenke)
• Romina di Giuseppe; Frank Hirche; Jukka Montonen et al. (2012). Reliability of plasma fibroblast growth factor 23 as risk biomarker in epidemiological studies measured over a four-month period. (ekstern lenke)
• Zoya Sabir; Hanne Rosendahl-Riise; Jutta Dierkes et al. (2022). Comparison of dietary intake measured by a web-based FFQ and repeated 24-hour dietary recalls: the Hordaland Health Study. (ekstern lenke)
• Helene Dahl; Klaus Meyer; Kristina Sandnes et al. (2023). Cystatin C proteoforms in chronic kidney disease. (ekstern lenke)
• Caroline Jensen; Cathrine Horn Sommersten; Johnny Laupsa-Borge et al. (2024). Quality and quantity of carbohydrates, faecal short-chain fatty acids and gastrointestinal symptoms– results from a randomised, controlled trial (CARBFUNC). (ekstern lenke)
• Jutta Dierkes; Helene Dahl; Natasha Lervaag Welland et al. (2018). High rates of central obesity and sarcopenia in CKD irrespective of renal replacement therapy - An observational cross-sectional study. (ekstern lenke)
• Eirik Magnus Meek Degerud; Kjetil Halvorsen Løland; Ottar Nygård et al. (2015). Vitamin D status was not associated with 'one-year' progression of coronary artery disease, assessed by coronary angiography in statin-treated patients. (ekstern lenke)
• Romina di Giuseppe; Malin Fjeld; Jutta Dierkes et al. (2015). The association between nut consumption and the risk of total and ischemic stroke in a German cohort study. (ekstern lenke)
• Heidi Borgeraas; Elin Strand; Eva Kristine Ringdal Pedersen et al. (2012). Omega-3 status and the relationship between plasma asymmetric dimethylarginine and risk of myocardial infarction in patients with suspected coronary artery disease. (ekstern lenke)
• Eirik Magnus Meek Degerud; Rune Hoff; Ottar Nygård et al. (2015). Cosinor modelling of seasonal variation in 25-hydroxyvitamin D concentrations in cardiovascular patients in Norway. (ekstern lenke)
• Therese Hjorth; Alena Schadow; Ingrid Revheim et al. (2022). Sixteen-week multicentre randomised controlled trial to study the effect of the consumption of an oat beta-glucan-enriched bread versus a whole-grain wheat bread on glycaemic control among persons with pre-diabetes: a study protocol of the CarbHealth study. (ekstern lenke)

Forskningsrapport

• Margaretha Haugen; Jutta Dierkes; Wenche Frølich et al. (2013). Assessment of vitamin A and D in food supplements. Opinion of the Panel on nutrition, dietetic products, novel food and allergy of the Norwegian Scientific Committee for Food Safety. (ekstern lenke)
• Helle Margrete Meltzer; Per Brandtzæg; Helle Katrine Knutsen et al. (2013). Benefit and risk assessment of breastmilk for infant health in Norway. Opinion of the Steering Committee of the Norwegian Scientific Committee for Food Safety. (ekstern lenke)

Fremhevet artikkel i media

• Michaela Getz; Marit Zinöcker; Jutta Dierkes et al. (2019). Folkehelseminister mot egen politikk?. (ekstern lenke)

Vitenskapelig litteraturgjennomgang

• Linnea Bärebring; Bright I. Nwaru; Christel Lamberg-Allardt et al. (2022). Supplementation with long chain n-3 fatty acids during pregnancy, lactation, or infancy in relation to risk of asthma and atopic disease during childhood: a systematic review and meta-analysis of randomized controlled clinical trials. (ekstern lenke)

Doktorgradsavhandling

• Hanne Rosendahl-Riise; Jutta Dierkes (2018). Dietary predictors of bone mineral density, hip fractures, mobility and muscle strength - in community-dwelling older persons. (ekstern lenke)
• Vegard Lysne; Ottar Nygård; Jutta Dierkes et al. (2019). Biomarkers of one-carbon metabolism and B-vitamin status : Targeted metabolomics in rats and humans exploring the effects of PPARα-activation and dietary composition. (ekstern lenke)
• Eirik Magnus Meek Degerud; Jutta Dierkes (2016). Vitamin D status and cardiovascular disease. Observational studies in patients who underwent coronary angiography. (ekstern lenke)

Konferanseforedrag

• Nathalie Genevieve Puaschitz; Tone Merete Norekvål; Elin Strand et al. (2012). Intake of saturated fat is and risk of coronary events in patients with suspected heart disease. (ekstern lenke)

Konferanseposter

• Anthea Van Parys; Vegard Lysne; Therese Karlsson et al. (2018). Dietary choline and risk of acute myocardial infarction.. (ekstern lenke)

Se en full oversikt over publikasjoner i Cristin

Utvalgte Publikasjoner 

2025

Hjorth T, Schadow A, Revheim I, Spielau U, Meyer K, Rieder A, Varela P, Ballance S, Koerner A, Landberg R, Buyken AE, Dierkes J, Rosendahl-Riise H. Effectiveness of regular oat β-glucan-enriched bread compared with whole-grain wheat bread on long-term glycemic control in adults at risk of type 2 diabetes: a randomized controlled trial. Am J Clin Nutr. 2025 Sep;122(3):724-732. doi: 10.1016/j.ajcnut.2025.06.018.

2024

Trollebø MA, Tangvik RJ, Skeie E, Grønning MK, Nygård O, Eagan TML, Dierkes J. Malnutrition as a prognostic factor for 2-year mortality in hospitalized patients in Norway: A matched cohort study. JPEN J Parenter Enteral Nutr. 2024 Apr;48(3):308-317. doi: 10.1002/jpen.2619.

2023

Sabir Z, Dierkes J, Hjartåker A, Rosendahl-Riise H. The association of dietary patterns with muscle mass and strength in old age: The Hordaland Health Study. Eur J Nutr. 2023 Oct;62(7):2739-2750. doi: 10.1007/s00394-023-03206-9.

2022

Ballance S, Mæhre HK, Rieder A, Arslan Lied G, Hindar Tvedt EK, Dierkes J. The solution properties of galactomannan after simulated digestion of guar fortified bread predict the extent of postprandial insulin reduction in healthy adult overweight subjects. Food Funct. 2022 Oct 3;13(19):9810-9821. doi: 10.1039/d2fo01762h. 

Toto B, Refosco A, O'Keeffe M, Barkhald ØH, Brønstad A, Lied GA, Yadetie F, Goksøyr A, Kögel T, Dierkes J. Intestinal permeability and gene expression after polyethylene and polyamide microplastic ingestion in Wistar rats. Toxicol Lett. 2022 Nov 1;370:35-41. doi: 10.1016/j.toxlet.2022.09.002.