People_

Dr Nicholas Koemel

Research Fellow
Physical Activity, Lifestyle, and Population Health
Sydney School of Health Sciences
Faculty of Medicine and Health

Email

nicholas.koemel@sydney.edu.au

Details

Member of the Charles Perkins Centre

Websites

ResearchGate

Google Scholar

Biographical details

Nicholas Koemel is a trained dietitian and Postdoctoral Research Fellow in the Physical Activity, Lifestyle, and Population Health department at The University of Sydney. He serves as the Integrative Behavioural Scientist for the Mackenzie Wearables Hub at the Charles Perkins Centre, a dedicated hub for using wearable technology to capture lifestyle behaviours in health-related research. His primary research focuses on the synergistic effects of physical activity, sleep, and nutrition on optimising health outcomes such as cardiovascular disease, cancer, and all-cause mortality. Nicholas is also involved in the Prospective Physical Activity, Sitting, and Sleep (ProPASS) consortium—an international collaboration of 16 active cohorts aimed at pooling wrist and thigh accelerometry data to improve understanding of the relationship between physical activity, sitting, and sleep and their impact on health outcomes.

Associations

Scientific societies

Prospective Physical Activity, Sitting and Sleep (ProPASS) Consortium
International Society of Physical Activity and Health (ISPAH)
International Society of Behavioural Nutrition and Physical Activity (ISBNPA)
Nutrition Society of Australia
European Society of Cardiology
Sydney Vietnam Network
Academy of Nutrition and Dietetics

Editorial Service

Junior Deputy Editor - European Journal of Preventive Cardiology

Selected peer review (journals)

Circulation, European Heart Jearnal, British Journal of Sports Medicine, European Journal of Applied Physiology, European Journal of Clinical Nutrition, Int. Journal of Sports Nutrition and Exercise Metabolism, Journal of the Academy of Nutrition and Dietetics

Awards and honours

2025 - Jenny Mackenzie Funding Award: Research Implementation Hub

2024 - Charles Perkins Centre Seed Funding Award

2022 - University of Glasgow and University of Sydney Partnership Grant

2022 - Faculty of Medicine and Health Executive Dean Award, University of Sydney

Keywords

Diet, Epidemiology, Physical activity, Chronic disease

Approaches

Epidemiology, Prevention & Control, Statistics/Research Design

Current research students

Project title	Research student
Modelling Physical Activity and Sleeps Association with Non-communicable diseases while Accounting for Inter-relations	Angel BIAN

Publications

By Type

Expand all

Journals

Koemel, N., Laouali, N., Skilton, M., Shah, S., Senior, A., Severi, G., Mancini, F., Gill, T., Simpson, S., Raubenheimer, D., et al (2024). Macronutrient composition of plant-based diets and breast cancer risk: the E3N prospective cohort study. European Journal of Nutrition, 63(5), 1771-1781. [More Information]
Koemel, N., Laouali, N., Senior, A., Celermajer, D., Grech, A., Solon-Biet, S., Simpson, S., Raubenheimer, D., Gill, T., Skilton, M. (2024). The Relationship between Dietary Macronutrient Composition and Telomere Length Among US Adults. Advanced Biology, 8(4). [More Information]
Koemel, N., Senior, A., Benmarhnia, T., Holmes, A., Okada, M., Oulhote, Y., Parker, H., Shah, S., Simpson, S., Raubenheimer, D., Gill, T., Skilton, M., et al (2023). Diet Quality, Microbial Lignan Metabolites, and Cardiometabolic Health among US Adults. Nutrients, 15(6). [More Information]
Liang, S., Mijatovic, J., Li, A., Koemel, N., Nasir, J., Toniutti, C., Bell-Anderson, K., Skilton, M., O'Leary, F. (2023). Dietary Patterns and Non-Communicable Disease Biomarkers: A Network Meta-Analysis and Nutritional Geometry Approach. Nutrients, 15(1), 76. [More Information]
Shah, S., Mahamat-Saleh, Y., Ait-Hadad, W., Koemel, N., Varraso, R., Boutron-Ruault, M., Laouali, N. (2023). Long-term adherence to healthful and unhealthful plant-based diets and breast cancer risk overall and by hormone receptor and histologic subtypes among postmenopausal females. American Journal of Clinical Nutrition, 117(3), 467-476. [More Information]
Bryant, E., Koemel, N., Martenstyn, J., Marks, P., Hickie, I., Maguire, S. (2023). Mortality and mental health funding—do the dollars add up? Eating disorder research funding in Australia from 2009 to 2021: a portfolio analysis. The Lancet Regional Health. Western Pacific, 37, 100786. [More Information]
Koemel, N., Senior, A., Celermajer, D., Grech, A., Gill, T., Simpson, S., Raubenheimer, D., Skilton, M. (2023). Multi-Nutrient Analysis of Dietary Macronutrients with All-Cause, Cardiovascular, and Cancer Mortality: Data from NHANES 1999–2014. Nutrients, 15(2). [More Information]
Keirns, B., Sciarrillo, C., Poindexter, K., Dixon, M., Medlin, A., Koemel, N., Hart, S., Geist, C., Jenkins, N., Lucas, E., et al (2023). Postprandial triglycerides across the aging spectrum: A secondary analysis utilizing an abbreviated fat tolerance test. Nutrition, Metabolism & Cardiovascular Diseases. [More Information]
Koemel, N., Skilton, M. (2022). Epigenetic Aging in Early Life: Role of Maternal and Early Childhood Nutrition. Current Nutrition Reports, 11(2), 318-328. [More Information]
Koemel, N., Senior, A., Dissanayake, H., Ross, J., McMullan, R., Kong, Y., Phang, M., Hyett, J., Raubenheimer, D., Gordon, A., Simpson, S., Skilton, M. (2022). Maternal dietary fatty acid composition and newborn epigenetic aging-a geometric framework approach. American Journal of Clinical Nutrition, 115(1), 118-127. [More Information]
Koemel, N., Shafieizadeh, K., Farr, B. (2021). Career Readiness in the Dietetics Curriculum. Journal of The Academy of Nutrition and Dietetics, 121(1), 15-24. [More Information]
Keirns, B., Sciarrillo, C., Koemel, N., Emerson, S. (2021). Fasting, non-fasting and postprandial triglycerides for screening cardiometabolic risk. Journal of Nutritional Science, 10. [More Information]
Sciarrillo, C., Keirns, B., Koemel, N., Anderson, K., Emerson, S. (2021). Fibroblast Growth Factor 19: Potential modulation of hepatic metabolism for the treatment of non-alcoholic fatty liver disease. Liver International, 41(5), 894-904. [More Information]
Koemel, N., Senior, A., Dissanayake, H., Raubenheimer, D., Simpson, S., Skilton, M. (2021). THE IMPACT OF MATERNAL DIETARY FATTY ACIDS ON NEWBORN CARDIOMETABOLIC RISK. Journal of the American College of Cardiology, 77(18), 1479. [More Information]
Dixon, M., Koemel, N., Sciarrillo, C., Lucas, E., Jenkins, N., Emerson, S. (2021). The reliability of an abbreviated fat tolerance test: A comparison to the oral glucose tolerance test. Clinical Nutrition ESPEN: the European e-journal of clinical nutrition and metabolism, 43, 428-435. [More Information]
Sciarrillo, C., Koemel, N., Keirns, B., Banks, N., Rogers, E., Rosenkranz, S., Kurti, S., Jenkins, N., Emerson, S. (2021). Who would benefit most from postprandial lipid screening? Clinical Nutrition, 40(7), 4762-4771. [More Information]
Keirns, B., Koemel, N., Sciarrillo, C., Anderson, K., Emerson, S. (2020). Exercise and intestinal permeability: another form of exercise-induced hormesis? American Journal of Physiology: Gastrointestinal and Liver Physiology, 319(4), G512-G518. [More Information]
Koemel, N., Sciarrillo, C., Bode, K., Dixon, M., Lucas, E., Jenkins, N., Emerson, S. (2020). Postprandial metabolism and vascular function: Impact of aging and physical activity level. International Journal of Sport Nutrition and Exercise Metabolism, 30(6), 412-419. [More Information]
Jenkins, N., Banks, N., Rogers, E., Sciarrillo, C., Koemel, N., Colquhoun, R., Emerson, S. (2020). Resistance exercise attenuates postprandial metabolic responses to a high-fat meal similarly in younger and older men. Nutrition Research, 83, 73-85. [More Information]
Koemel, N., Barnes, C., Wilder, S. (2019). Metabolic and behavioral responses of predators to prey nutrient content. Journal of Insect Physiology, 116, 25-31. [More Information]
Sciarrillo, C., Koemel, N., Tomko, P., Bode, K., Emerson, S. (2019). Postprandial lipemic responses to various sources of saturated and monounsaturated fat in adults. Nutrients, 11(5), 1089. [More Information]
Sciarrillo, C., Koemel, N., Kurti, S., Emerson, S. (2019). Validity of an abbreviated, clinically feasible test for postprandial lipemia in healthy adults: A randomized cross-over study. Nutrients, 11(1), 180. [More Information]

show 19 more

By Year

Expand all

2024

Koemel, N., Laouali, N., Skilton, M., Shah, S., Senior, A., Severi, G., Mancini, F., Gill, T., Simpson, S., Raubenheimer, D., et al (2024). Macronutrient composition of plant-based diets and breast cancer risk: the E3N prospective cohort study. European Journal of Nutrition, 63(5), 1771-1781. [More Information]
Koemel, N., Laouali, N., Senior, A., Celermajer, D., Grech, A., Solon-Biet, S., Simpson, S., Raubenheimer, D., Gill, T., Skilton, M. (2024). The Relationship between Dietary Macronutrient Composition and Telomere Length Among US Adults. Advanced Biology, 8(4). [More Information]

2023

Koemel, N., Senior, A., Benmarhnia, T., Holmes, A., Okada, M., Oulhote, Y., Parker, H., Shah, S., Simpson, S., Raubenheimer, D., Gill, T., Skilton, M., et al (2023). Diet Quality, Microbial Lignan Metabolites, and Cardiometabolic Health among US Adults. Nutrients, 15(6). [More Information]
Liang, S., Mijatovic, J., Li, A., Koemel, N., Nasir, J., Toniutti, C., Bell-Anderson, K., Skilton, M., O'Leary, F. (2023). Dietary Patterns and Non-Communicable Disease Biomarkers: A Network Meta-Analysis and Nutritional Geometry Approach. Nutrients, 15(1), 76. [More Information]
Shah, S., Mahamat-Saleh, Y., Ait-Hadad, W., Koemel, N., Varraso, R., Boutron-Ruault, M., Laouali, N. (2023). Long-term adherence to healthful and unhealthful plant-based diets and breast cancer risk overall and by hormone receptor and histologic subtypes among postmenopausal females. American Journal of Clinical Nutrition, 117(3), 467-476. [More Information]
Bryant, E., Koemel, N., Martenstyn, J., Marks, P., Hickie, I., Maguire, S. (2023). Mortality and mental health funding—do the dollars add up? Eating disorder research funding in Australia from 2009 to 2021: a portfolio analysis. The Lancet Regional Health. Western Pacific, 37, 100786. [More Information]
Koemel, N., Senior, A., Celermajer, D., Grech, A., Gill, T., Simpson, S., Raubenheimer, D., Skilton, M. (2023). Multi-Nutrient Analysis of Dietary Macronutrients with All-Cause, Cardiovascular, and Cancer Mortality: Data from NHANES 1999–2014. Nutrients, 15(2). [More Information]
Keirns, B., Sciarrillo, C., Poindexter, K., Dixon, M., Medlin, A., Koemel, N., Hart, S., Geist, C., Jenkins, N., Lucas, E., et al (2023). Postprandial triglycerides across the aging spectrum: A secondary analysis utilizing an abbreviated fat tolerance test. Nutrition, Metabolism & Cardiovascular Diseases. [More Information]

show 3 more

2022

Koemel, N., Skilton, M. (2022). Epigenetic Aging in Early Life: Role of Maternal and Early Childhood Nutrition. Current Nutrition Reports, 11(2), 318-328. [More Information]
Koemel, N., Senior, A., Dissanayake, H., Ross, J., McMullan, R., Kong, Y., Phang, M., Hyett, J., Raubenheimer, D., Gordon, A., Simpson, S., Skilton, M. (2022). Maternal dietary fatty acid composition and newborn epigenetic aging-a geometric framework approach. American Journal of Clinical Nutrition, 115(1), 118-127. [More Information]

2021

Koemel, N., Shafieizadeh, K., Farr, B. (2021). Career Readiness in the Dietetics Curriculum. Journal of The Academy of Nutrition and Dietetics, 121(1), 15-24. [More Information]
Keirns, B., Sciarrillo, C., Koemel, N., Emerson, S. (2021). Fasting, non-fasting and postprandial triglycerides for screening cardiometabolic risk. Journal of Nutritional Science, 10. [More Information]
Sciarrillo, C., Keirns, B., Koemel, N., Anderson, K., Emerson, S. (2021). Fibroblast Growth Factor 19: Potential modulation of hepatic metabolism for the treatment of non-alcoholic fatty liver disease. Liver International, 41(5), 894-904. [More Information]
Koemel, N., Senior, A., Dissanayake, H., Raubenheimer, D., Simpson, S., Skilton, M. (2021). THE IMPACT OF MATERNAL DIETARY FATTY ACIDS ON NEWBORN CARDIOMETABOLIC RISK. Journal of the American College of Cardiology, 77(18), 1479. [More Information]
Dixon, M., Koemel, N., Sciarrillo, C., Lucas, E., Jenkins, N., Emerson, S. (2021). The reliability of an abbreviated fat tolerance test: A comparison to the oral glucose tolerance test. Clinical Nutrition ESPEN: the European e-journal of clinical nutrition and metabolism, 43, 428-435. [More Information]
Sciarrillo, C., Koemel, N., Keirns, B., Banks, N., Rogers, E., Rosenkranz, S., Kurti, S., Jenkins, N., Emerson, S. (2021). Who would benefit most from postprandial lipid screening? Clinical Nutrition, 40(7), 4762-4771. [More Information]

show 3 more

2020

Keirns, B., Koemel, N., Sciarrillo, C., Anderson, K., Emerson, S. (2020). Exercise and intestinal permeability: another form of exercise-induced hormesis? American Journal of Physiology: Gastrointestinal and Liver Physiology, 319(4), G512-G518. [More Information]
Koemel, N., Sciarrillo, C., Bode, K., Dixon, M., Lucas, E., Jenkins, N., Emerson, S. (2020). Postprandial metabolism and vascular function: Impact of aging and physical activity level. International Journal of Sport Nutrition and Exercise Metabolism, 30(6), 412-419. [More Information]
Jenkins, N., Banks, N., Rogers, E., Sciarrillo, C., Koemel, N., Colquhoun, R., Emerson, S. (2020). Resistance exercise attenuates postprandial metabolic responses to a high-fat meal similarly in younger and older men. Nutrition Research, 83, 73-85. [More Information]

2019

Koemel, N., Barnes, C., Wilder, S. (2019). Metabolic and behavioral responses of predators to prey nutrient content. Journal of Insect Physiology, 116, 25-31. [More Information]
Sciarrillo, C., Koemel, N., Tomko, P., Bode, K., Emerson, S. (2019). Postprandial lipemic responses to various sources of saturated and monounsaturated fat in adults. Nutrients, 11(5), 1089. [More Information]
Sciarrillo, C., Koemel, N., Kurti, S., Emerson, S. (2019). Validity of an abbreviated, clinically feasible test for postprandial lipemia in healthy adults: A randomized cross-over study. Nutrients, 11(1), 180. [More Information]

Selected Grants

2024