Maretha Opperman

692 total citations
16 papers, 492 citations indexed

About

Maretha Opperman is a scholar working on Public Health, Environmental and Occupational Health, Nutrition and Dietetics and Endocrinology, Diabetes and Metabolism. According to data from OpenAlex, Maretha Opperman has authored 16 papers receiving a total of 492 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Public Health, Environmental and Occupational Health, 9 papers in Nutrition and Dietetics and 5 papers in Endocrinology, Diabetes and Metabolism. Recurrent topics in Maretha Opperman's work include Fatty Acid Research and Health (6 papers), Obesity, Physical Activity, Diet (5 papers) and Diabetes, Cardiovascular Risks, and Lipoproteins (4 papers). Maretha Opperman is often cited by papers focused on Fatty Acid Research and Health (6 papers), Obesity, Physical Activity, Diet (5 papers) and Diabetes, Cardiovascular Risks, and Lipoproteins (4 papers). Maretha Opperman collaborates with scholars based in South Africa, United Kingdom and Australia. Maretha Opperman's co-authors include Welma Oosthuizen, Rachel Thompson, Christina S. Venter, Hester H. Vorster, Zandile June‐Rose Mchiza, Jillian Hill, Irma Venter, Yul Derek Davids, Peter Jacobs and Nelia P. Steyn and has published in prestigious journals such as British Journal Of Nutrition, International Journal of Environmental Research and Public Health and Public Health Nutrition.

In The Last Decade

Maretha Opperman

16 papers receiving 454 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Maretha Opperman South Africa 7 173 171 125 101 67 16 492
Cheryl Toner United States 8 243 1.4× 152 0.9× 90 0.7× 57 0.6× 43 0.6× 12 509
Mikhail Benet Rodríguez Cuba 9 163 0.9× 131 0.8× 70 0.6× 74 0.7× 74 1.1× 57 760
Ana Gabriela Murillo United States 15 121 0.7× 227 1.3× 152 1.2× 88 0.9× 58 0.9× 28 719
Slimane Belbraouet Canada 12 124 0.7× 50 0.3× 176 1.4× 64 0.6× 44 0.7× 37 559
Theresa Poon Canada 11 206 1.2× 307 1.8× 85 0.7× 38 0.4× 71 1.1× 16 542
Sangwon Chung South Korea 11 72 0.4× 134 0.8× 82 0.7× 71 0.7× 28 0.4× 30 345
Stephanie Jew Canada 13 359 2.1× 194 1.1× 187 1.5× 92 0.9× 129 1.9× 15 847
Kyung-Hea Lee South Korea 12 198 1.1× 103 0.6× 55 0.4× 63 0.6× 95 1.4× 49 514
Hamidreza Raeisi‐Dehkordi Iran 12 174 1.0× 163 1.0× 85 0.7× 102 1.0× 25 0.4× 37 507
Jadwiga Biernat Poland 11 81 0.5× 109 0.6× 84 0.7× 30 0.3× 72 1.1× 88 444

Countries citing papers authored by Maretha Opperman

Since Specialization
Citations

This map shows the geographic impact of Maretha Opperman'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 Maretha Opperman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Maretha Opperman more than expected).

Fields of papers citing papers by Maretha Opperman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Maretha Opperman. 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 Maretha Opperman. The network helps show where Maretha Opperman may publish in the future.

Co-authorship network of co-authors of Maretha Opperman

This figure shows the co-authorship network connecting the top 25 collaborators of Maretha Opperman. A scholar is included among the top collaborators of Maretha Opperman 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 Maretha Opperman. Maretha Opperman is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

16 of 16 papers shown
1.
Opperman, Maretha, et al.. (2023). Three decades of research on Centella asiatica: Insights and future trends from bibliometric analysis. Journal of Herbal Medicine. 39. 100662–100662. 6 indexed citations
2.
Opperman, Maretha, et al.. (2023). Sociodemographic and lifestyle factors and the risk of metabolic syndrome in taxi drivers: A focus on street food. Frontiers in Nutrition. 10. 1112975–1112975. 4 indexed citations
3.
Opperman, Maretha, et al.. (2022). Anthropometric indices and cut-off points for screening of metabolic syndrome among South African taxi drivers. Frontiers in Nutrition. 9. 974749–974749. 13 indexed citations
4.
Opperman, Maretha, et al.. (2022). Association between Macronutrient and Fatty Acid Consumption and Metabolic Syndrome: A South African Taxi Driver Survey. International Journal of Environmental Research and Public Health. 19(23). 15452–15452. 5 indexed citations
5.
Sewpaul, Ronel, et al.. (2022). Comparison of the Ability of Anthropometric Indices to Predict the Risk of Diabetes Mellitus in South African Males: SANHANES-1. International Journal of Environmental Research and Public Health. 19(6). 3224–3224. 6 indexed citations
6.
Opperman, Maretha, et al.. (2021). A total cost perspective of type 1 and 2 diabetes mellitus in two South African medical schemes servicing the public healthcare sector. South African Medical Journal. 111(7). 635–635. 7 indexed citations
7.
Oyenihi, Ayodeji B., et al.. (2020). Centella asiaticaalleviates diabetes‐induced changes in fatty acid profile and oxidative damage in rat testis. Andrologia. 52(10). e13751–e13751. 3 indexed citations
8.
Opperman, Maretha, et al.. (2016). South African seed oils are safe for human consumption. South African Journal of Clinical Nutrition. 29(1). 7–11. 2 indexed citations
9.
Opperman, Maretha. (2013). What health professionals should know about omega-3 fatty acid supplements. South African Journal of Clinical Nutrition. 26(2). 6–11. 2 indexed citations
10.
Steyn, Nelia P., Zandile June‐Rose Mchiza, Jillian Hill, et al.. (2013). Nutritional contribution of street foods to the diet of people in developing countries: a systematic review. Public Health Nutrition. 17(6). 1363–1374. 139 indexed citations
11.
Opperman, Maretha, et al.. (2013). Analysis of the omega-3 fatty acid content of South African fish oil supplements : a follow-up study : cardiovascular topics. Cardiovascular journal of South Africa. 24(8). 297–302. 34 indexed citations
12.
Benadé, AJ Spinnler, et al.. (2012). Disappearance of long chain omega-3 fatty acids from human red blood cells (RBC) in vivo after supplementation with salmon oil. 1 indexed citations
13.
Opperman, Maretha, et al.. (2011). Analysis of omega-3 fatty acid content of South African fish oil supplements. Cardiovascular journal of South Africa. 22(6). 324–329. 38 indexed citations
14.
Oosthuizen, Welma, et al.. (2006). Phytosterols/Stanols Lower Cholesterol Concentrations in Familial Hypercholesterolemic Subjects: A Systematic Review with Meta-Analysis. Journal of the American College of Nutrition. 25(1). 41–48. 94 indexed citations
15.
Opperman, Maretha, et al.. (2005). Some health benefits of low glycaemic index diets – a systematic review. South African Journal of Clinical Nutrition. 18(3). 214–221. 1 indexed citations
16.
Opperman, Maretha, Christina S. Venter, Welma Oosthuizen, Rachel Thompson, & Hester H. Vorster. (2004). Meta-analysis of the health effects of using the glycaemic index in meal-planning. British Journal Of Nutrition. 92(3). 367–381. 137 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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