Alan Crozier

37.8k total citations · 8 hit papers
323 papers, 28.6k citations indexed

About

Alan Crozier is a scholar working on Biochemistry, Pathology and Forensic Medicine and Molecular Biology. According to data from OpenAlex, Alan Crozier has authored 323 papers receiving a total of 28.6k indexed citations (citations by other indexed papers that have themselves been cited), including 171 papers in Biochemistry, 102 papers in Pathology and Forensic Medicine and 94 papers in Molecular Biology. Recurrent topics in Alan Crozier's work include Phytochemicals and Antioxidant Activities (166 papers), Tea Polyphenols and Effects (88 papers) and Antioxidant Activity and Oxidative Stress (36 papers). Alan Crozier is often cited by papers focused on Phytochemicals and Antioxidant Activities (166 papers), Tea Polyphenols and Effects (88 papers) and Antioxidant Activity and Oxidative Stress (36 papers). Alan Crozier collaborates with scholars based in United Kingdom, United States and Italy. Alan Crozier's co-authors include William Mullen, Michael E. J. Lean, Michael N. Clifford, Daniele Del Rio, Gina Borges, Indu Bala Jaganath, Christine A. Edwards, Ana Rodriguez‐Mateos, Garry G. Duthie and Hiroshi Ashihara and has published in prestigious journals such as Nature, SHILAP Revista de lepidopterología and Gastroenterology.

In The Last Decade

Alan Crozier

318 papers receiving 27.5k citations

Hit Papers

align trajectories sort by overperformance

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.

Dietary (Poly)phenolics in Human Health: Structures, Bioavailability, and Evidence of Protective Effects Against Chronic Diseases

2012 2.0k citations Daniele Del Rio, Ana Rodriguez‐Mateos et al. Antioxidants and Redox Signaling profile →
Dietary phenolics: chemistry, bioavailability and effects on health

2009 1.5k citations Alan Crozier, Michael N. Clifford et al. profile →
Plant Foods and Herbal Sources of Resveratrol

2002 781 citations Takao Yokota, Hiroshi Ashihara et al. profile →
Quantitative Analysis of the Flavonoid Content of Commercial Tomatoes, Onions, Lettuce, and Celery

1997 547 citations Alan Crozier, Michael E. J. Lean et al. profile →
Bioavailability, bioactivity and impact on health of dietary flavonoids and related compounds: an update

2014 472 citations Ana Rodriguez‐Mateos, Pedro Mena et al. profile →
The Bioavailability, Transport, and Bioactivity of Dietary Flavonoids: A Review from a Historical Perspective

2018 447 citations Gary Williamson, Alan Crozier et al. profile →
Coffee: biochemistry and potential impact on health

2014 397 citations Michael N. Clifford, Michael E. J. Lean et al. Food & Function profile →
Chlorogenic acids and the acyl-quinic acids: discovery, biosynthesis, bioavailability and bioactivity

2017 309 citations Michael N. Clifford, Alan Crozier et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Alan Crozier United Kingdom	91	13.3k	8.6k	7.3k	5.6k	5.5k	323	28.6k
Augustin Scalbert France	79	16.0k 1.2×	10.7k 1.2×	6.8k 0.9×	5.8k 1.0×	7.1k 1.3×	212	36.8k
Gary Williamson United Kingdom	103	15.1k 1.1×	13.6k 1.6×	7.7k 1.1×	6.7k 1.2×	6.3k 1.2×	468	39.6k
Claudine Manach France	58	11.5k 0.9×	7.5k 0.9×	3.9k 0.5×	4.4k 0.8×	4.1k 0.8×	93	24.1k
P.C.H. Hollman Netherlands	66	11.7k 0.9×	6.0k 0.7×	4.3k 0.6×	5.0k 0.9×	3.2k 0.6×	148	24.3k
Christine Morand France	55	10.2k 0.8×	6.1k 0.7×	3.6k 0.5×	3.6k 0.6×	3.7k 0.7×	145	21.8k
Iris F. F. Benzie Hong Kong	43	10.9k 0.8×	5.3k 0.6×	7.8k 1.1×	1.8k 0.3×	7.0k 1.3×	131	27.6k
Gow‐Chin Yen Taiwan	83	7.2k 0.5×	7.7k 0.9×	6.2k 0.8×	2.1k 0.4×	4.7k 0.9×	317	23.9k
Ronald L. Prior United States	79	25.2k 1.9×	9.0k 1.0×	12.2k 1.7×	3.2k 0.6×	12.2k 2.2×	172	43.2k
Francisco A. Tómas‐Barberán Spain	108	15.5k 1.2×	10.2k 1.2×	14.5k 2.0×	2.8k 0.5×	8.4k 1.5×	418	38.5k
Rui Hai Liu United States	81	14.6k 1.1×	7.8k 0.9×	12.6k 1.7×	2.1k 0.4×	10.1k 1.9×	219	33.9k

Countries citing papers authored by Alan Crozier

Since Specialization

Citations

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

Fields of papers citing papers by Alan Crozier

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Alan Crozier

This figure shows the co-authorship network connecting the top 25 collaborators of Alan Crozier. A scholar is included among the top collaborators of Alan Crozier 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 Alan Crozier. Alan Crozier 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

Pourshahidi, L. Kirsty, Camille Pouchieu, David Gaudout, et al.. (2025). The impact of (poly)phenol-rich foods and extracts on flow-mediated dilation (FMD): a narrative review. Food & Function. 16(22). 8720–8763.

Pourshahidi, L. Kirsty, Nigel G. Ternan, Gordon J. McDougall, et al.. (2025). A review on the effects of flavan-3-ols, their metabolites, and their dietary sources on gut barrier integrity. Food & Function. 16(3). 815–830. 2 indexed citations

Bresciani, Letizia, Claudia Favari, Alice Rosi, et al.. (2025). How does the flavan-3-ol structure condition the quali-quantitative production of phenolic metabolites? Insights from a 3-arm intervention. Food Chemistry. 491. 145207–145207.

Pereira‐Caro, Gema, L. Kirsty Pourshahidi, Chris I. R. Gill, et al.. (2024). Bioavailability of mango (poly)phenols: An evaluation of the impact of the colon, and phenylalanine and tyrosine on the production of phenolic catabolites. Free Radical Biology and Medicine. 225. 605–616. 1 indexed citations

Pereira‐Caro, Gema, Alicia Moreno-Ortega, L. Kirsty Pourshahidi, et al.. (2024). Colon-available mango (poly)phenols exhibit mitigating effects on the intestinal barrier function in human intestinal cell monolayers under inflammatory conditions. Food & Function. 15(9). 5118–5131. 4 indexed citations

Ottaviani, Javier I., Gina Borges, Jennifer Kimball, et al.. (2023). Flavan-3-ol-methylxanthine interactions: Modulation of flavan-3-ol bioavailability in volunteers with a functional colon and an ileostomy. Free Radical Biology and Medicine. 196. 1–8. 8 indexed citations

Pede, Giuseppe Di, Pedro Mena, Letizia Bresciani, et al.. (2023). A Systematic Review and Comprehensive Evaluation of Human Intervention Studies to Unravel the Bioavailability of Hydroxycinnamic Acids. Antioxidants and Redox Signaling. 40(7-9). 510–541. 5 indexed citations

Borges, Gina, Jodi L. Ensunsa, Jennifer Kimball, et al.. (2022). Absorption, distribution, metabolism and excretion of apigenin and its glycosides in healthy male adults. Free Radical Biology and Medicine. 185. 90–96. 28 indexed citations

Pede, Giuseppe Di, Pedro Mena, Letizia Bresciani, et al.. (2022). Revisiting the bioavailability of flavan-3-ols in humans: A systematic review and comprehensive data analysis. Molecular Aspects of Medicine. 89. 101146–101146. 34 indexed citations

10.

Lane, J. Athene, Vanessa Er, Kerry Avery, et al.. (2018). ProDiet: A Phase II Randomized Placebo-controlled Trial of Green Tea Catechins and Lycopene in Men at Increased Risk of Prostate Cancer. Cancer Prevention Research. 11(11). 687–696. 33 indexed citations

11.

Rodriguez‐Mateos, Ana, Simon S. Skene, Javier I. Ottaviani, et al.. (2018). Assessing the respective contributions of dietary flavanol monomers and procyanidins in mediating cardiovascular effects in humans: randomized, controlled, double-masked intervention trial. American Journal of Clinical Nutrition. 108(6). 1229–1237. 49 indexed citations

12.

Ashihara, Hiroshi, Kouichi Mizuno, Takao Yokota, & Alan Crozier. (2017). Xanthine Alkaloids: Occurrence, Biosynthesis, and Function in Plants. Fortschritte der Chemie Organischer Naturstoffe/Fortschritte der Chemie organischer Naturstoffe/Progress in the chemistry of organic natural products. 105. 1–88. 56 indexed citations

13.

Tómas‐Barberán, Francisco A., Graciele da Silva Campelo Borges, & Alan Crozier. (2012). Phytochemicals in cocoa and the bioavailability of flavan-3-ols. ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam). 1 indexed citations

14.

Crozier, Alan, et al.. (2012). Free phenolic acids in human urine after drinking coffee rich in chlorogenic acids.. Simulating the effects of changing planting date towards rice production in MADA area Malaysia. 40(2). 221–232. 2 indexed citations

15.

Mullen, William, et al.. (2010). Tea prepared from Anastatica hirerochuntica seeds contains a diversity of antioxidant flavonoids, chlorogenic acids and phenolic compounds. Phytochemistry. 72(2-3). 248–254. 52 indexed citations

16.

Stalmach, Angélique, William Mullen, Heike Steiling, et al.. (2009). Absorption, metabolism, and excretion of green tea flavan‐3‐ols in humans with an ileostomy. Molecular Nutrition & Food Research. 54(3). 323–334. 163 indexed citations

17.

Grieve, D, et al.. (2008). The Effects of Dietary Phenolic Compounds on Cytokine and Antioxidant Production by A549 Cells. Journal of Medicinal Food. 11(2). 382–384. 33 indexed citations

18.

Stewart, Alan J. & Alan Crozier. (2005). Chlorogenic acids in coffee - absorption and excretion by human volunteers.. 52–59. 1 indexed citations

19.

Crozier, Alan, et al.. (1998). The Oslo breakfast : An optimal diet in one meal : On the scientification of everyday life as exemplified by food. 28. 62–76. 5 indexed citations

20.

Ashihara, Hiroshi, et al.. (1996). METABOLISM OF CAFFEINE AND RELATED PURINE ALKALOIDS IN TEA LEAVES. Plant and Cell Physiology. 37. 109. 2 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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