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Dr Janette Walton

education and career profile

Dr Janette Walton graduated from UCC with a BSc (General), a HDip in Applied Sciences (Nutrition), an Msc (Nutrition), a PhD (Nutrition) and a PG Cert (Teaching and Learning in Higher Education). She is currently studying for an MA (Teaching and Learning in Higher Education) at CIT.
With extensive experience in both food industry (including Ferrero Ireland Ltd. Heinz European and Chilled Foods and Neville Bros. Ltd) and academia (CIT, UCC), Dr Walton is currently a lecturer at the Department of Biological Sciences in CIT and is a Principal Investigator on the IUNA national dietary survey research in Ireland ( She has authored over 65 peer-reviewed papers (see Pubmed) and has a H-index of 21 and an i10 index of 37 (as of May 2019). She is an active member of the UK Nutrition Society since 2002 and acts as an institute ambassador for this learned society following a recent 5 year term as membership secretary on the society’s Irish Section. She is a committee member of the Public Health Nutrition sub-committee of the Food Safety Authority of Ireland. She is currently supervising 6 PhD students and 4 MSc students.


research interests 

Dr Walton’s main research interests are on the dietary intake of the Irish population and its potential impact on nutrition and health. She has been involved in the development of National databases of dietary intake and health status since 2002 through national nutrition surveys of the population from age 1 to 90 years.


ongoing research 

2018-2020 National Teen’s Food Consumption Survey II (DAFM)
2016-2019 National Children’s Food Consumption Survey II (DAFM)
2016-2019 Analysis of Irish Universities Nutrition Alliance (IUNA) national food consumption databases to determine the role of beef and lamb in the Irish diet (as part of programme 7 meat and health) EI (Centres of Competency Scheme) and Irish Meat industry
2016-2019 Development of biofortification approaches for enhanced vitamin K content of foods (DAFM)
2016-2019 Development of Riboflavin biomarkers to relate dietary sources with status, gene-nutrient Interactions and validated health effects in adult cohorts (Science Ireland (JPI))
2018-2020 National Teen’s food Consumption Survey II (DAFM)


previous research 

2002-2005 Development of a national food consumption database for children for risk assessment of food-borne chemicals and nutrient intakes (DAFM)
2005-2007 Development of food consumption database for risk assessment of food borne chemicals, packaging materials and food fortification in Irish children and adolescents (DAFM)
2006-2008 Analysis of National Children’s Food Survey for development of food-based dietary guidelines (HSE/Safefood)
2008-2013 National Food consumption databases for Food Safety & Nutrition (DAFM)
2008-2013 National Nutrition Phenotype Database (DAFM)
2014-2016 National Nutrition databases for public health and new product development (NUTRIDATA) (DAFM)
2014-2016 JINGO-JPI: European Nutritional Phenotype Database Sharing initiative within the Joint Programme Initiative (DAFM)
2014-2016 DietIreland – Development of online dietary assessment tool (DAFM)



>65 peer-reviewed full papers; Full list of papers available at PUBMED

  All Since 2014
Citations 4014 3926
h-index 21 20
i10-index 37 37

Scientific papers (peer-reviewed) Recent papers (since 2016)
• Gibney, MJ, O’Sullivan, A., Flynn, A., Walton, J., Daniel, H., Manios, Y., Martinez A., Saris W.H.M., Gibney E.R. & Uzhova, I. (2019). Analysis of the National Adult Nutrition Survey (Ireland) and the Food4Me Nutrition Survey Databases to Explore the Development of Food Labelling Portion Sizes for the European Union. Nutrients, 11(1). doi:10.3390/nu11010006
• O’Donovan, C.B., Devlin, N.F., Buffini, M., Walton, J., Flynn, A., Gibney, M.J., Nugent, A.P. & McNulty, B.A. (2019). Whole grain intakes in Irish adults: findings from the National Adults Nutrition Survey (NANS). European Journal of Nutrition, 58(2), 541-550. doi:10.1007/s00394-018-1615-3
• Rahill, S., Kennedy, A., Walton, J., McNulty, B. A., & Kearney, J. (2019). The factors associated with food fussiness in Irish school-aged children. Public Health Nutrition, 22(1), 164-174. doi:10.1017/S1368980018002835
• Buffini, M., Goscinny, S., Van Loco, J., Nugent, A. P., Walton, J., Flynn, A., Gibney, M.J., & McNulty, B. A. (2018). Dietary intakes of six intense sweeteners by Irish adults. Food Additives & Contaminants: Part A, 35(3), 425-438. doi:10.1080/19440049.2017.1411619
• Li, K., Brennan, L., Bloomfield, J. F., Duff, D. J., McNulty, B. A., Flynn, A., Walton, J., Gibney, M.J., & Nugent, A. P. (2018). Adiposity Associated Plasma Linoleic Acid is Related to Demographic, Metabolic Health and Haplotypes of FADS1/2 Genes in Irish Adults. Mol Nutr Food Res, 62(7), e1700785. doi:10.1002/mnfr.201700785
• Lyons, J., Walton, J. & Flynn, A. (2018). Larger food portion sizes are associated with both positive and negative markers of dietary quality in Irish adults. Nutrients, 10(12), 1929. doi:10.3390/nu10121929
• NCD Risk Factor Collaboration (NCD-RisC) (2018). Contributions of mean and shape of blood pressure distribution to worldwide trends and variations in raised blood pressure: a pooled analysis of 1018 population-based measurement studies with 88.6 million participants. International Journal of Epidemiology, 47(3), 872-883i. doi:10.1093/ije/dyy016
• Pinart, M., Nimptsch, K., Bouwman, J., Dragsted, L. O., Yang, C., De Cock, N., Lachat, C., Perozzi, G., Canali, R., Lombardo, R., d’Archivio, M., Guillaume, M., Donneau, A., Jeran, S., Linseisen, J., Kleiser, C., Nothlings, U., Barbaresko, J., Boeing, H., Stelmach-Mardas, M., Heuer, T., Laird, E., Walton, J., Gasparini, P., Robino, A., Castano, L., Rojo-Martinez, G., Merino, J., Masana, L., Standl, M., Schulz, H., Biagi, E., Nurk, E., Matthys, C., Gobbetti, M., de Angelis, M., Windler, E., Zyriax, B., Tafforeau, J., & Pischon, T. (2018). Joint Data Analysis in Nutritional Epidemiology: Identification of Observational Studies and Minimal Requirements. The Journal of Nutrition, 148(2), 285-297. doi:10.1093/jn/nxx037
• Walton, J., O'Connor, L., & Flynn, A. (2018). Cross-sectional association of dietary water intakes and sources, and adiposity: National Adult Nutrition Survey, the Republic of Ireland. Eur J Nutr. doi:10.1007/s00394-018-1635-z
• Fairweather-Tait, S.J., Jennings, A., Harvey, L.J., Berry, R., Walton, J. & Dainty, J.R. (2017). Modeling tool for calculating dietary iron bioavailability in iron-sufficient adults. American Journal of Clinical Nutrition, 105(6), 1408-1414. doi:10.3945/ajcn.116.147389
• Feeney, E. L., O'Sullivan, A., Nugent, A. P., McNulty, B., Walton, J., Flynn, A., & Gibney, E. R. (2017). Patterns of dairy food intake, body composition and markers of metabolic health in Ireland: results from the National Adult Nutrition Survey. Nutrition & diabetes, 7(2), e243-e243. doi:10.1038/nutd.2016.54
• Flynn, A., Kehoe, L., Hennessy, Á., & Walton, J. (2017). Estimating safe maximum levels of vitamins and minerals in fortified foods and food supplements. European Journal of Nutrition, 56(8), 2529-2539. doi:10.1007/s00394-016-1288-8
• Gibbons, H., Carr, E., McNulty, B. A., Nugent, A. P., Walton, J., Flynn, A., Gibney, M.J., & Brennan, L. (2017). Metabolomic-based identification of clusters that reflect dietary patterns. Molecular Nutrition & Food Research, 61(10), 1601050. doi:10.1002/mnfr.201601050
• Gibbons, H., Michielsen, C. J. R., Rundle, M., Frost, G., McNulty, B. A., Nugent, A. P., Walton, J., Flynn, A., Gibney, M.J., & Brennan, L. (2017). Demonstration of the utility of biomarkers for dietary intake assessment; proline betaine as an example. Molecular Nutrition & Food Research, 61(10), 1700037. doi:10.1002/mnfr.201700037
• Hennessy, Á., Browne, F., Kiely, M., Walton, J., & Flynn, A. (2017). The role of fortified foods and nutritional supplements in increasing vitamin D intake in Irish preschool children. European Journal of Nutrition, 56(3), 1219-1231. doi:10.1007/s00394-016-1171-7
• Kehoe, L., Walton, J., McNulty, B. A., Nugent, A. P., & Flynn, A. (2017). Dietary strategies for achieving adequate vitamin D and iron intakes in young children in Ireland. Journal of Human Nutrition and Dietetics, 30(4), 405-416. doi:10.1111/jhn.12449
• Lenighan, Y. M., Nugent, A. P., Li, K. F., Brennan, L., Walton, J., Flynn, A., Roche, H.M., & McNulty, B. A. (2017). Processed red meat contribution to dietary patterns and the associated cardio-metabolic outcomes. British Journal of Nutrition, 118(3), 222-228. doi:10.1017/S0007114517002008
• McNulty, B. A., Nugent, A. P., Walton, J., Flynn, A., Tlustos, C., & Gibney, M. J. (2017). Iodine intakes and status in Irish adults: is there cause for concern? British Journal of Nutrition, 117(3), 422-431. doi:10.1017/S0007114516004347
• NCD Risk Factor Collaboration (NCD-RisC) (2017). Worldwide trends in blood pressure from 1975 to 2015: a pooled analysis of 1479 population-based measurement studies with 19·1 million participants. The Lancet, 389(10064), 37-55. doi:10.1016/S0140-6736(16)31919-5
• NCD Risk Factor Collaboration (NCD-RisC) (2017) Worldwide trends in body-mass index, underweight, overweight, and obesity from 1975 to 2016: a pooled analysis of 2416 population-based measurement studies in 128·9 million children, adolescents, and adults. The Lancet, 390(10113), 2627-2642. doi:10.1016/S0140-6736(17)32129-3
• Timon, C.M., Blain, R., McNulty, B., Kehoe, L., Evans, K., Walton, J., Flynn, A. & Gibney, E.R. (2017). The Development, Validation, and User Evaluation of Foodbook24: A Web-Based Dietary Assessment Tool Developed for the Irish Adult Population. J Med Internet Res, 19(5), e158. doi:10.2196/jmir.6407
• Timon, C. M., Evans, K., Kehoe, L., Blain, R. J., Flynn, A., Gibney, E. R., & Walton, J. (2017). Comparison of a Web-Based 24-h Dietary Recall Tool (Foodbook24) to an Interviewer-Led 24-h Dietary Recall. Nutrients, 9(5), 425. doi:10.3390/nu9050425
• Walton, J., Kehoe, L., McNulty, B. A., Nugent, A. P., & Flynn, A. (2017). Nutrient intakes and compliance with nutrient recommendations in children aged 1–4 years in Ireland. Journal of Human Nutrition and Dietetics, 30(5), 665-676. doi:10.1111/jhn.12452
• Yang, C., Van Camp, J., De Cock, N., Kolsteren, P., Lachat, C., Perozzi, G., Canali, R., Hoge, A., Stelmach-Mardas, M., Dragsted, L.O., Palombi, S.M., Dobre, I., Bouwman, J., Clarys, P., Minervini, F., De Angelis, M., Gobbetti, M., Tafforeau, J., Coltell, O., Corella, D., De Ruyck, H., Walton, J., Kehoe, L., Matthys, C., De Baets, B., De Tre, G., Bronselear, A., Rivellese, A., Giacco, R., Lombardo, R., De Clercq, S., Hulstaert, N., & Lachat, C. (2017). Perspective: Essential Study Quality Descriptors for Data from Nutritional Epidemiologic Research. Advances in Nutrition, 8(5), 639-651. doi:10.3945/an.117.015651
• Yin, X., Gibbons, H., Rundle, M., Frost, G., McNulty, B. A., Nugent, A.P., Walton, J., Flynn, A., Gibney, M. J., & Brennan, L. (2017). Estimation of Chicken Intake by Adults Using Metabolomics-Derived Markers. The Journal of Nutrition, 147(10), 1850-1857. doi:10.3945/jn.117.252197
• Hayes, A., Hennessy, Á., Walton, J., McNulty, B. A., Lucey, A. J., Kiely, M., Flynn, A., & Cashman, K. D. (2016). Phylloquinone Intakes and Food Sources and Vitamin K Status in a Nationally Representative Sample of Irish Adults. The Journal of Nutrition, 146(11), 2274-2280. doi:10.3945/jn.116.239137
• Li, K., Brennan, L., McNulty, B. A., Bloomfield, J. F., Duff, D. J., Devlin, N. F. C., Gibney, M.J., Flynn, A., Walton, J., & Nugent, A. P. (2016). Plasma fatty acid patterns reflect dietary habits and metabolic health: A cross-sectional study. Molecular Nutrition & Food Research, 60(9), 2043-2052. doi:10.1002/mnfr.201500711
• Li, K., McNulty, B. A., Tierney, A. M., Devlin, N. F. C., Joyce, T., Leite, J. C., Flynn, A., Walton, J., Brennan, L., Gibney, M.J., & Nugent, A. P. (2016). Dietary fat intakes in Irish adults in 2011: how much has changed in 10 years? British Journal of Nutrition, 115(10), 1798-1809. doi:10.1017/S0007114516000787
• Martyn, D. M., Nugent, A. P., McNulty, B. A., O’Reilly, E., Tlustos, C., Walton, J., Flynn, A., & Gibney, M. J. (2016). Dietary intake of four artificial sweeteners by Irish pre-school children. Food Additives & Contaminants: Part A, 33(4), 592-602. doi:10.1080/19440049.2016.1152880
• Newens, K. J., & Walton, J. (2016). A review of sugar consumption from nationally representative dietary surveys across the world. Journal of Human Nutrition and Dietetics, 29(2), 225-240. doi:10.1111/jhn.12338
• NCD Risk Factor Collaboration (NCD-RisC). (2016). Worldwide trends in diabetes since 1980: a pooled analysis of 751 population-based studies with 4·4 million participants. The Lancet, 387(10027), 1513-1530. doi:10.1016/S0140-6736(16)00618-8
• NCD Risk Factor Collaboration (NCD-RisC). (2016). A century of trends in adult human height. eLife, 5, e13410. doi:10.7554/eLife.13410
• NCD Risk Factor Collaboration (NCD-RisC). (2016). Trends in adult body-mass index in 200 countries from 1975 to 2014: a pooled analysis of 1698 population-based measurement studies with 19·2 million participants. (2016). The Lancet, 387(10026), 1377-1396. doi:10.1016/S0140-6736(16)30054-X
• O’Connor, L., Walton, J., & Flynn, A. (2016). Fruit and vegetable intakes, sources and contribution to total diet in very young children (1–4 years): the Irish National Pre-School Nutrition Survey. British Journal of Nutrition, 115(12), 2196-2202. doi:10.1017/S0007114516001422
• Timon, C. M., van den Barg, R., Blain, R. J., Kehoe, L., Evans, K., Walton, J., Flynn, A., & Gibney, E. R. (2016). A review of the design and validation of web- and computer-based 24-h dietary recall tools. Nutrition Research Reviews, 29(2), 268-280. doi:10.1017/S0954422416000172