Willem De Keyzer

2.8k total citations · 3 hit papers
39 papers, 1.9k citations indexed

About

Willem De Keyzer is a scholar working on Public Health, Environmental and Occupational Health, Nutrition and Dietetics and Physiology. According to data from OpenAlex, Willem De Keyzer has authored 39 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Public Health, Environmental and Occupational Health, 12 papers in Nutrition and Dietetics and 11 papers in Physiology. Recurrent topics in Willem De Keyzer's work include Nutritional Studies and Diet (28 papers), Obesity, Physical Activity, Diet (16 papers) and Consumer Attitudes and Food Labeling (9 papers). Willem De Keyzer is often cited by papers focused on Nutritional Studies and Diet (28 papers), Obesity, Physical Activity, Diet (16 papers) and Consumer Attitudes and Food Labeling (9 papers). Willem De Keyzer collaborates with scholars based in Belgium, France and Netherlands. Willem De Keyzer's co-authors include Inge Huybrechts, Stefaan De Henauw, Nadia Slimani, Barbara Vanaelst, Marcel Hebbelinck, Peter Deriemaeker, Tom Deliens, Patrick Mullie, Peter Clarys and John Van Camp and has published in prestigious journals such as International Journal of Molecular Sciences, PLoS Medicine and Environment International.

In The Last Decade

Willem De Keyzer

39 papers receiving 1.9k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Comparison of Nutritional Quality of the Vegan, Vegetarian, Semi-Vegetarian, Pesco-Vegetarian and Omnivorous Diet

2014 351 citations Peter Clarys, Tom Deliens et al. Nutrients profile →
Strengthening the Reporting of Observational Studies in Epidemiology – nutritional epidemiology (STROBE‐nut): An extension of the STROBE statement

2016 342 citations Willem De Keyzer, Nadia Slimani et al. profile →
Strengthening the Reporting of Observational Studies in Epidemiology—Nutritional Epidemiology (STROBE-nut): An Extension of the STROBE Statement

2016 323 citations Marga C. Ocké, Willem De Keyzer et al. profile →

Peers

Willem De Keyzer

PHEOH

PHYSI

ECOLO

GHP

Patrick Mullie Belgium

Elizabeth P. Neale Australia

Pramil N. Singh United States

Caroline van Rossum Netherlands

Heli Tapanainen Finland

Marika Ferrari Italy

Lauren E O’Connor United States

Janette Walton Ireland

Giuditta Pagliai Italy

Karen E. Assmann France

Patrick Mullie Belgium

Willem De Keyzer

965 ×0.8

PHEOH

507 ×0.9

PHYSI

265 ×0.7

472 ×1.4

ECOLO

136 ×0.8

GHP

Citations per year, relative to Willem De Keyzer Willem De Keyzer (= 1×) peers Patrick Mullie

Countries citing papers authored by Willem De Keyzer

Since Specialization

Citations

This map shows the geographic impact of Willem De Keyzer's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Willem De Keyzer with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Willem De Keyzer more than expected).

Fields of papers citing papers by Willem De Keyzer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Willem De Keyzer. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Willem De Keyzer. The network helps show where Willem De Keyzer may publish in the future.

Co-authorship network of co-authors of Willem De Keyzer

This figure shows the co-authorship network connecting the top 25 collaborators of Willem De Keyzer. A scholar is included among the top collaborators of Willem De Keyzer based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Willem De Keyzer. Willem De Keyzer is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Ruyck, Karl De, Inge Huybrechts, Shupeng Yang, et al.. (2020). Mycotoxin exposure assessments in a multi-center European validation study by 24-hour dietary recall and biological fluid sampling. Environment International. 137. 105539–105539. 63 indexed citations

Huybrechts, Inge, Elom K. Aglago, Amy Mullee, et al.. (2017). Global comparison of national individual food consumption surveys as a basis for health research and integration in national health surveillance programmes. Proceedings of The Nutrition Society. 76(4). 549–567. 25 indexed citations

Keyzer, Willem De, et al.. (2016). Older offenders deemed criminally irresponsible in Flanders (Belgium): Descriptive results from a retrospective case note study. International Journal of Law and Psychiatry. 46. 35–41. 5 indexed citations

Keyzer, Willem De, Marcela Dofková, Inger Therese Lillegaard, et al.. (2015). Reporting accuracy of population dietary sodium intake using duplicate 24 h dietary recalls and a salt questionnaire. British Journal Of Nutrition. 113(3). 488–497. 23 indexed citations

Julián, Cristina, Silvia Bel‐Serrat, Mathilde Kersting, et al.. (2015). Comparison of different approaches to calculate nutrient intakes based upon 24-h recall data derived from a multicenter study in European adolescents. European Journal of Nutrition. 55(2). 537–545. 26 indexed citations

Clarys, Peter, Tom Deliens, Inge Huybrechts, et al.. (2014). Comparison of Nutritional Quality of the Vegan, Vegetarian, Semi-Vegetarian, Pesco-Vegetarian and Omnivorous Diet. Nutrients. 6(3). 1318–1332. 351 indexed citations breakdown →

Huybrechts, Inge, Yinyi Lin, Willem De Keyzer, et al.. (2012). Intake and dietary sources of haem and non-haem iron in Flemish preschoolers. European Journal of Clinical Nutrition. 66(7). 806–812. 9 indexed citations

Keyzer, Willem De, Arnold Dekkers, Charlene Ottevaere, et al.. (2012). Relative validity of a short qualitative food frequency questionnaire for use in food consumption surveys. European Journal of Public Health. 23(5). 737–742. 25 indexed citations

Keyzer, Willem De, et al.. (2012). Nutritional quality and acceptability of a weekly vegetarian lunch in primary-school canteens in Ghent, Belgium: ‘Thursday Veggie Day’. Public Health Nutrition. 15(12). 2326–2330. 20 indexed citations

10.

Ocké, Marga C., Nadia Slimani, H.A.M. Brants, et al.. (2011). Potential and requirements for a standardized pan-European food consumption survey using the epic-soft 24-h recalls. Ghent University Academic Bibliography (Ghent University). 1 indexed citations

11.

Keyzer, Willem De, Inge Huybrechts, Veerle de Vriendt, et al.. (2011). Repeated 24-hour recalls versus dietary records for estimating nutrient intakes in a national food consumption survey. Food & Nutrition Research. 55(1). 7307–7307. 83 indexed citations

12.

Huybrechts, Inge, Anouk Geelen, J.H.M. de Vries, et al.. (2011). Respondents’ evaluation of the 24-h dietary recall method (EPIC-Soft) in the EFCOVAL Project. European Journal of Clinical Nutrition. 65(S1). S29–S37. 16 indexed citations

13.

Crispim, Sandra Patrícia, Anouk Geelen, Olga W. Souverein, et al.. (2011). Biomarker-based evaluation of two 24-h recalls for comparing usual fish, fruit and vegetable intakes across European centers in the EFCOVAL Study. European Journal of Clinical Nutrition. 65(S1). S38–S47. 40 indexed citations

14.

Huybrechts, Inge, Corinne Casagrande, Geneviève Nicolas, et al.. (2011). Inventory of experiences from national/regional dietary monitoring surveys using EPIC-Soft. European Journal of Clinical Nutrition. 65(S1). S16–S28. 14 indexed citations

15.

Ocké, Marga C., Nadia Slimani, H.A.M. Brants, et al.. (2011). Potential and requirements for a standardized pan-European food consumption survey using the EPIC-Soft software. European Journal of Clinical Nutrition. 65(S1). S48–S57. 20 indexed citations

16.

Huybrechts, Inge, Yinyi Lin, Willem De Keyzer, et al.. (2011). Dietary sources and sociodemographic and economic factors affecting vitamin D and calcium intakes in Flemish preschoolers. European Journal of Clinical Nutrition. 65(9). 1039–1047. 28 indexed citations

17.

Keyzer, Willem De, Inge Huybrechts, Mieke De Maeyer, et al.. (2010). Food photographs in nutritional surveillance: errors in portion size estimation using drawings of bread and photographs of margarine and beverages consumption. Ghent University Academic Bibliography (Ghent University). 7 indexed citations

18.

Huybrechts, Inge, Lea Maes, Carine Vereecken, et al.. (2010). High dietary supplement intakes among Flemish preschoolers. Appetite. 54(2). 340–345. 25 indexed citations

19.

Vandevijvere, Stefanie, et al.. (2010). Estimate of total salt intake in two regions of Belgium through analysis of sodium in 24-h urine samples. European Journal of Clinical Nutrition. 64(11). 1260–1265. 24 indexed citations

20.

Matthys, Christophe, Ilse Pynaert, Willem De Keyzer, & Stefaan De Henauw. (2007). Validity and Reproducibility of an Adolescent Web-Based Food Frequency Questionnaire. Journal of the American Dietetic Association. 107(4). 605–610. 83 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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