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Professor Samir Samman

PhD (Sydney)

Samir Samman Photo

Tel 64 3 479 7945
Room: Science II Building, 7n10
Email:samir.samman@otago.ac.nz

Professor Samir Samman’s research is centred on biomarkers and the role they play in informing nutritional status and disease risk in humans. His research has particularly focussed on zinc, iron and vitamin B12.
Samir’s current research on zinc is investigating the potential for this nutrient to influence markers of inflammation, and cardio-metabolic risk. With dietitian and PhD student Anna Chu, he is exploring zinc homeostasis. Contrasting the observations in healthy individuals, in the diabetic state it appears that there is differential regulation of zinc metabolism by inflammatory cytokines and C-reactive protein. In meta-analyses of randomised trials his group demonstrated a favourable effect of zinc on cardiovascular risk and glycaemic control in people with diabetes.

His research on iron is aimed at determining the role of bioavailable food sources of iron in the management of iron deficiency in young women. Together with his collaborators and students, he showed that iron status is determined largely by personal food selection with avoiders of flesh foods exhibiting a lower biochemical status of iron, zinc and long-chain omega-3 fatty acids than non-avoiders. Avoidance of meat and poultry appears to be driven by the misconception that these dietary components are responsible for weight-gain. In a dietary intervention trial with meat he demonstrated improvements in iron status and in contrast to iron supplementation, consumption of meat enhanced markers of vitamins B12 and B6, and some measures of physical wellbeing.

Professor Samman’s broad interest in micronutrients has seen him become involved in a range of national and international committees. He is currently the chair of the Australian and New Zealand joint committee that is responsible for setting the recommended dietary intakes, and has previously served on US National Institutes of Health (NIH) and UN International Atomic Energy Agency (IAEA) committees that considered nutrient biomarkers. Professor Samman was appointed recently as an Honorary Professor at the University of Sydney and currently serves as the President-Elect of the Nutrition Society of Australia.

Current postgraduate students

PhD
Anna Chu. Zinc homeostasis and effects in athletes.
J.O. McArthur. Clinical and social determinants of iron status in young women. (Primary supervisor)
MDiet
Jason Cocker. Dietary vitamin B12 and biomarkers of vitamin B12 status.

Recent Graduates
PhD
Foster M. Zinc homeostasis and effects in cardiovascular disease and Type 2 diabetes mellitus (Primary supervisor). 2013.
O’Leary FM. Nutritional status of B vitamins and clinical outcomes in the elderly (Primary supervisor). 2012.
Fayet F. Dietary behaviour and biomarkers of nutritional status in young women (Primary supervisor). 2010.
Germaine KA. Evaluation and development of in vitro starch digestion methods (University supervisor). 2008.
Balasundram N. Characterisation and metabolism of novel antioxidants (Primary supervisor). 2006.

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Publications

Samman, S. (2017). Trace elements 10.1: Zinc. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (5th ed.) (pp. 165-169). Oxford University Press. [Contribution].

Foster, M., & Samman, S. (2017). Implications of a plant-based diet on zinc requirements and nutritional status. In F. Mariotti (Ed.), Vegetarian and plant-based diets in health and disease prevention. (pp. 683-714). London, UK: Academic Press. doi: 10.1016/B978-0-12-803968-7.00038-1

Samman, S. (2017). Food groups 17.8: Fish and seafood. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (5th ed.) (pp. 290-291). Oxford University Press. [Contribution].

Samman, S. (2017). Trace elements 10.2: Copper. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (5th ed.) (pp. 170-172). Oxford University Press. [Contribution].

Chu, A., Holdaway, C., Varma, T., Petocz, P., & Samman, S. (2017). Lower serum zinc concentration despite higher dietary zinc intake in athletes: A systematic review and meta-analysis. Sports Medicine. Advance online publication. doi: 10.1007/s40279-017-0818-8

Chapter in Book - Research

Samman, S. (2017). Trace elements 10.1: Zinc. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (5th ed.) (pp. 165-169). Oxford University Press. [Contribution].

Samman, S. (2017). Trace elements 10.2: Copper. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (5th ed.) (pp. 170-172). Oxford University Press. [Contribution].

Samman, S. (2017). Food groups 17.8: Fish and seafood. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (5th ed.) (pp. 290-291). Oxford University Press. [Contribution].

Foster, M., & Samman, S. (2017). Implications of a plant-based diet on zinc requirements and nutritional status. In F. Mariotti (Ed.), Vegetarian and plant-based diets in health and disease prevention. (pp. 683-714). London, UK: Academic Press. doi: 10.1016/B978-0-12-803968-7.00038-1

Foster, M., & Samman, S. (2015). Vegetarian diets across the lifecycle: Impact on zinc intake and status. In J. Henry (Ed.), Advances in food and nutrition research. (pp. 93-131). Waltham, MA: Academic Press. doi: 10.1016/bs.afnr.2014.11.003

Chu, A., Foster, M., & Samman, S. (2015). Determinants of zinc transport in humans: Zinc status, exercise, inflammation and chronic diseases. In S. M. Ostojic (Ed.), Human health and nutrition: New research. (pp. 17-48). New York: Nova Science.

Darnton-Hill, I., Ahmed, F., & Samman, S. (2015). The impact of micronutrients on inflammation and health in low- and middle-income countries. In A. Bendich & R. J. Deckelbaum (Eds.), Preventive Nutrition: The comprehensive guide for health professionals. (5th ed.) (pp. 597-644). Cham, Switzerland: Springer. doi: 10.1007/978-3-319-22431-2_30

Samman, S., O'Connor, H. T., Bell-Anderson, K. S., & Foster, M. (2012). Trace elements and inflammation. In M. Garg & L. Wood (Eds.), Nutrition and physical activity in inflammatory diseases. (pp. 128-144). Oxfordshire, UK: Cabi.

Samman, S., Foster, M., & Hunter, D. (2012). The role of boron in human nutrition and metabolism. In N. S. Hosmane (Ed.), Boron science: New technologies and applications. (pp. 73-88). Boca Raton, FL: CRC Press. doi: 10.1201/b11199-7

Foster, M., Hunter, D., & Samman, S. (2011). Evaluation of the nutritional and metabolic effects of Aloe vera. In I. F. F. Benzie & S. Wachtel-Galor (Eds.), Herbal medicine: Biomolecular and clinical aspects. (2nd ed.) Boca Raton, FL: CRC Press.

Foster, M., & Samman, S. (2011). Zinc and atherosclerosis: Clinical observations and potential mechanisms. In L. Rink (Ed.), Biomedical and health research (Vol. 76): Zinc in human health. (pp. 347-372). Amsterdam, Netherlands: IOS Press. doi: 10.3233/978-1-60750-816-8-347

Samman, S. (2007). Trace elements: Zinc. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (3rd ed.) (pp. 138-143). Oxford University Press.

Samman, S. (2007). Trace elements: Copper. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (3rd ed.) (pp. 143-145). Oxford University Press.

Samman, S. (2007). Food groups: Fish and seafood. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (3rd ed.) (pp. 367-369). Oxford University Press.

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Chapter in Book - Other

Samman, S. (2012). Food groups 25.8: Fish and seafood. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (4th ed.) (pp. 425-427). Oxford University Press. [Contribution].

Samman, S. (2012). Trace elements 11.2: Copper. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (4th ed.) (pp. 175-177). Oxford University Press. [Contribution].

Samman, S. (2012). Trace elements 11.1: Zinc. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (4th ed.) (pp. 171-175). Oxford University Press. [Contribution].

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Journal - Research Article

Chu, A., Holdaway, C., Varma, T., Petocz, P., & Samman, S. (2017). Lower serum zinc concentration despite higher dietary zinc intake in athletes: A systematic review and meta-analysis. Sports Medicine. Advance online publication. doi: 10.1007/s40279-017-0818-8

Chu, A., Petocz, P., & Samman, S. (2017). Plasma/serum zinc status during aerobic exercise recovery: A systematic review and meta-analysis. Sports Medicine, 47(1), 127-134. doi: 10.1007/s40279-016-0567-0

Chu, A., Varma, T., Petocz, P., & Samman, S. (2017). Quantifiable effects of regular exercise on zinc status in a healthy population: A systematic review. PLoS ONE, 12(9), e0184827. doi: 10.1371/journal.pone.0184827

Chu, A., Foster, M., Hancock, D., Petocz, P., & Samman, S. (2017). Interrelationships among mediators of cellular zinc homeostasis in healthy and type 2 diabetes mellitus populations. Molecular Nutrition & Food Research, 61(4), 1600838. doi: 10.1002/mnfr.201600838

Shi, Z., Chu, A., Zhen, S., Taylor, A. W., Dai, Y., Riley, M., & Samman, S. (2017). Association between dietary zinc intake and mortality among Chinese adults: Findings from 10-year follow-up in the Jiangsu Nutrition Study. European Journal of Nutrition. Advance online publication. doi: 10.1007/s00394-017-1551-7

Ho, M., Baur, L. A., Cowell, C. T., Samman, S., & Garnett, S. P. (2017). Zinc status, dietary zinc intake and metabolic risk in Australian children and adolescents; Nepean Longitudinal Study. European Journal of Nutrition, 56(7), 2407-2414. doi: 10.1007/s00394-016-1280-3

Chu, A., Foster, M., & Samman, S. (2016). Zinc status and risk of cardiovascular diseases and Type 2 Diabetes Mellitus: A systematic review of prospective cohort studies. Nutrients, 8(11), 707. doi: 10.3390/nu8110707

Gibson, A. A., Franklin, J., Pattinson, A. L., Cheng, Z. G. Y., Samman, S., Markovic, T. P., & Sainsbury, A. (2016). Comparison of very low energy diet products available in Australia and how to tailor them to optimise protein content for younger and older adult men and women. Healthcare, 4(3), 71. doi: 10.3390/healthcare4030071

Ho, M., Heath, A.-L. M., Gow, M., Baur, L. A., Cowell, C. T., Samman, S., & Garnett, S. P. (2016). Zinc intake, zinc bioavailability and plasma zinc in obese adolescents with clinical insulin resistance following low energy diets. Annals of Nutrition & Metabolism, 69(2), 135-141. doi: 10.1159/000450728

Chu, A., Petocz, P., & Samman, S. (2016). Immediate effects of aerobic exercise on plasma/serum zinc levels: A meta-analysis. Medicine & Science in Sports & Exercise, 48(4), 726-733. doi: 10.1249/mss.0000000000000805

Chu, A., Foster, M., Hancock, D., Bell-Anderson, K., Petocz, P., & Samman, S. (2015). TNF-α gene expression is increased following zinc supplementation in type 2 diabetes mellitus. Genes & Nutrition, 10(1), 440. doi: 10.1007/s12263-014-0440-4

Chu, A., Foster, M., Ward, S., Zaman, K., Hancock, D., Petocz, P., & Samman, S. (2015). Zinc-induced upregulation of metallothionein (MT)-2A is predicted by gene expression of zinc transporters in healthy adults. Genes & Nutrition, 10(6), 44. doi: 10.1007/s12263-015-0494-y

Darnton-Hill, I., & Samman, S. (2015). Challenges and opportunities in scaling-up nutrition in healthcare. Healthcare, 3(1), 3-19. doi: 10.3390/healthcare3010003

Rangan, A., Jones, A., & Samman, S. (2015). Zinc supplement use and contribution to zinc uptake in Australian children. Public Health Nutrition, 18(4), 589-595. doi: 10.1017/S1368980014000871

Foster, M., Hirulah, U. N., Prasad, A., Petocz, P., & Samman, S. (2015). Zinc status of vegetarians during pregnancy: A systematic review of observational studies and meta-analysis of zinc intake. Nutrients, 7(6), 4512-4525. doi: 10.3390/nu7064512

Fayet-Moore, F., Petocz, P., & Samman, S. (2014). Micronutrient status in female university students: Iron, zinc, copper, selenium, vitamin B12 and folate. Nutrients, 6(11), 5103-5116. doi: 10.3390/nu6115103

Fayet, F., Flood, V., Petocz, P., & Samman, S. (2014). Avoidance of meat and poultry decreases intakes of omega-3 fatty acids, vitamin B12, selenium and zinc in young women. Journal of Human Nutrition & Dietetics, 27(Suppl. 2), 135-142. doi: 10.1111/jhn.12092

McArthur, J. O., Gough, N. M., Petocz, P., & Samman, S. (2014). Inclusion of pork meat in the diets of young women reduces their intakes of energy-dense, nutrient-poor foods: Results from a randomized controlled trial. Nutrients, 6(6), 2320-2332. doi: 10.3390/nu6062320

Samman, S., Crossett, B., Somers, M., Bell, K. J., Lai, N. T., Sullivan, D. R., & Petocz, P. (2014). Metabolic profiling of plasma amino acids shows that histidine increases following the consumption of pork. Diabetes, Metabolic Syndrome and Obesity, 7, 203-210. doi: 10.2147/DMSO.S60382

Foster, M., Petocz, P., & Samman, S. (2013). Inflammation markers predict zinc transporter gene expression in women with type 2 diabetes mellitus. Journal of Nutritional Biochemistry, 24(9), 1655-1661. doi: 10.1016/j.jnutbio.2013.02.006

McArthur, J. O., Tang, H., Petocz, P., & Samman, S. (2013). Biological variability and impact of oral contraceptives on vitamins B6, B12 and folate status in women of reproductive age. Nutrients, 5(9), 3634-3645. doi: 10.3390/nu5093634

Foster, M., Chu, A., Petocz, P., & Samman, S. (2013). Effect of vegetarian diets on zinc status: A systematic review and meta-analysis of studies in humans. Journal of the Science of Food & Agriculture, 93(10), 2362-2371. doi: 10.1002/jsfa.6179

O'Leary, F., Allman-Farinelli, M., Petocz, P., & Samman, S. (2013). Nutritional status but not vitamin deficiencies are associated with low functional scores. Journal of Aging Research & Clinical Practice, 2(2), 216-220.

Zaman, K., McArthur, J. O., Abboud, M. N., Ahmad, Z. I., Garg, M. L., Petocz, P., & Samman, S. (2013). Iron supplementation decreases plasma zinc but has no effect on plasma fatty acids in non-anemic women. Nutrition Research, 33(4), 272-278. doi: 10.1016/j.nutres.2013.02.001

Capdor, J., Foster, M., Petocz, P., & Samman, S. (2013). Zinc and glycemic control: A meta-analysis of randomised placebo controlled supplementation trials in humans. Journal of Trace Elements in Medicine & Biology, 27(2), 137-142. doi: 10.1016/j.jtemb.2012.08.001

Foster, M., Petocz, P., Caterson, I. D., & Samman, S. (2013). Effects of zinc and α-linolenic acid supplementation on glycemia and lipidemia in women with type 2 diabetes mellitus: A randomized, double-blind, placebo-controlled trial. Journal of Diabetes Research & Clinical Metabolism, 2, 3. doi: 10.7243/2050-0866-2-3

Fayet, F., Petocz, P., & Samman, S. (2012). Prevalence and correlates of dieting in college women: A cross sectional study. International Journal of Women's Health, 4(1), 405-411. doi: 10.2147/IJWH.S33920

Foster, M., & Samman, S. (2012). Zinc and regulation of inflammatory cytokines: Implications for cardiometabolic disease. Nutrients, 4(7), 676-694. doi: 10.3390/nu4070676

Foster, M., Karra, M., Picone, T., Chu, A., Hancock, D. P., Petocz, P., & Samman, S. (2012). Dietary fiber intake increases the risk of zinc deficiency in healthy and diabetic women. Biological Trace Element Research, 149(2), 135-142. doi: 10.1007/s12011-012-9408-7

O'Leary, F., Allman-Farinelli, M., & Samman, S. (2012). Vitamin B12 status, cognitive decline and dementia: A systematic review of prospective cohort studies. British Journal of Nutrition, 108(11), 1948-1961. doi: 10.1017/S0007114512004175

Rangan, A. M., & Samman, S. (2012). Zinc intake and its dietary sources: Results of the 2007 Australian National Children's Nutrition and Physical Activity Survey. Nutrients, 4(7), 611-624. doi: 10.3390/nu4070611

McArthur, J. O., Petocz, P., Caterson, I. D., & Samman, S. (2012). A randomized controlled trial in young women of the effects of consuming pork meat or iron supplements on nutritional status and feeling of well-being. Journal of the American College of Nutrition, 31(3), 175-184. doi: 10.1080/07315724.2012.10720025

O'Leary, F., Flood, V. M., Petocz, P., Allman-Farinelli, M., & Samman, S. (2011). B vitamin status, dietary intake and length of stay in a sample of elderly rehabilitation patients. Journal of Nutrition, Health & Aging, 15(6), 485-489. doi: 10.1007/s12603-010-0330-4

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