Tanis Fenton

Dr. Tanis Fenton

is a Registered Dietitian and Epidemiologist. She developed the Fenton Preterm Growth Charts based on a need she saw when she was working clinically as a Dietitian in the Neonatal Intensive Care Unit. These growth charts are used internationally. They have been built into several electronic medical records, apps and clinical tools, as well as included in over 30 textbooks. She has been invited widely to present her work. In 2019, she received the O’Brien Institute Mid-Career Research Leader Award from the Cumming School of Medicine, University of Calgary. Currently Dr. Fenton is the invited Chair for the Preterm Infant Expert Workgroup for the American Dietary Guidelines for preterm infants. Her research interests include nutrition, premature infant growth, and knowledge translation.

Neonatal Peer-Reviewed publications

Fenton TR, Nasser R, Creighton D, Tang S, Sauve R, Bilan D, Fenton CJ, Eliasziw M. Weight, length, and head circumference at 36 weeks are not predictive of later cognitive impairment in very preterm infants. Perinatol. 2020 Oct 9. doi: 10.1038/s41372-020-00855-0. PMID: 33037316 (ClinicalTrials.gov Identifier: NCT03064022) https://rdcu.be/b8id0

Moloney L, Groh-Wargo S, Maritin C, Taylor S, Rozga M, Gura K, Griffin IJ, Fenton TR. Very Low Birthweight Preterm Infant Enteral Nutrition Project: Preterm Infant (VLBW) enteral nutrition. https://www.andeal.org/topic.cfm?menu=5716. August 2020

Fenton TR, Goldberg D, Alshaikh B, Nasser R, Hay WW, Groh-Wargo S, Shah PS, Taylor S, Senterre T, Hoyos A, Embleton N, Rochow N, Bloomfield F. A holistic approach to infant growth assessment considers clinical, social and genetic factors rather than an assessment of weight at a set timepoint. J Perinatol. 2020 Aug 13. PMID: 32792632  https://rdcu.be/b6e13

Fenton TR, Al-Wassia H, Premji SS, Sauve RS. Higher versus lower protein intake in formula-fed low birth weight infants. Cochrane Database Syst Rev. 2020 Jun 23;6(6):CD003959. doi: 10.1002/14651858.CD003959.pub4. PMID: 32573771

Fenton TR, Cormack B, Goldberg D, Nasser R, Alshaikh B, Eliasziw M, Hay W, Hoyos W, Anderson D, Bloomfield F, Griffin I, Embleton N, Rochow N, Taylor S, Senterre T, Schanler R, Elmrayed S, Groh-Wargo S, Adamkin D, Shah P. “Extrauterine growth restriction” & “postnatal growth failure” are misnomers for preterm infants. J Perinatology ePub March 25, 2020: full-text view-only version: https://rdcu.be/b3eqw

Unger SL, Fenton TR, Jetty R, Critch JN, O’Connor DL; Canadian Paediatric Society, Nutrition and Gastroenterology Committee. Iron requirements in the first 2 years of life. Paediatrics & Child Health 2019. 24 (8), 555-6, 2019 PMID: 31844396 https://www.cps.ca/en/documents/position/iron-requirements

Al-Wassia H, Lyon AW, Rose SM, Sauve RS, Fenton TR. Hypophosphatemia is prevalent among preterm infants less than 1,500 grams. Am J Perinatol. 2019 Nov;36(13):1412-1419. PubMed PMID:30665240.

Fenton TR, Griffin IJ, Hoyos A, Groh-Wargo S, Anderson D, Ehrenkranz RA, Senterre T. Accuracy of preterm infant weight gain velocity calculations vary depending on method used and infant age at time of measurement. Pediatr Res. 2019 Apr;85(5):650-654.

Fenton TR, Senterre T, Griffin IJ. Time interval for preterm infant weight gain velocity calculation precision. Arch Dis Child Fetal Neonatal Ed. 2019 Mar;104(2):F218-F219. doi: 10.1136/archdischild-2018-314843.

Moloney L, Rozga M, Fenton TR. Nutrition Assessment, Exposures, and Interventions for Very-Low-Birth-Weight Preterm Infants: A Scoping Review. J Acad Nutr Diet. 2018 Jun 2. PubMed PMID: 29871835. https://authors.elsevier.com/c/1YS8U7t0kPiVo3

Fenton TR, Anderson D, Groh-Wargo S, Hoyos A, Ehrenkranz RA, Senterre T. An Attempt to Standardize the Calculation of Growth Velocity of Preterm Infants-Evaluation of Practical Bedside Methods. J Pediatr. 2017 Dec 12. pii:S0022-3476(17)31346-X. PubMed PMID: 29246464.

Landau-Crangle E, Rochow N, Fenton TR, Liu K, Ali A, So HY, Fusch G, Marrin ML, Fusch C. Individualized Postnatal Growth Trajectories for Preterm Infants. JPEN J Parenter Enteral Nutr. 2018 Feb 8. doi: 10.1002/jpen.1138. [Epub ahead of print] PubMed PMID: 29419902.

Fenton TR, Chan HT, Madhu A, Griffin IJ, Hoyos A, Ziegler EE, Groh-Wargo S, Carlson S, Senterre T, Anderson D, Ehrenkranz RA. Preterm Infant Growth Velocity Calculations: A Systematic Review. Pediatrics. I2017 Mar;139(3). pii: e20162045. doi: 10.1542/peds.2016-2045

Villar J, Puglia FA, Fenton TR, Cheikh Ismail L, Staines-Urias E, Giuliani F, Ohuma EO, Victora CG, Sullivan P, Barros FC, Lambert A, Papageorghiou AT, Ochieng R, Jaffer YA, Altman DG, Noble AJ, Gravett MG, Purwar M, Pang R, Uauy R, Kennedy  SH, Bhutta ZA. Body composition at birth and its relationship with neonatal anthropometric ratios: the newborn body composition study of the INTERGROWTH-21(st) project. Pediatr Res. 2017 Aug;82(2):305-316. PubMed PMID: 28445454; PubMed Central PMCID: PMC5605677.

Chale LE, Fenton TR, Kayange N. Predictors of knowledge and practice of exclusive breastfeeding among health workers in Mwanza city, northwest Tanzania. BMC Nurs. 2016 Dec 30;15:72.

Rochow N, Raja P, Liu K, Fenton T, Landau-Crangle E, Göttler S, Jahn A, Lee S, Seigel S, Campbell D, Heckmann M, Pöschl J, Fusch C. Pub. Pediatr Res. 2016 Jun;79(6):870-9

Raiten DJ, Steiber AL, Carlson SE, Griffin IJ; Anderson A, Hay WW, Jr. Robins S, Neu J, Georgieff MK, Groh-Wargo S, Fenton T. Working Group Reports:  Evaluation of the evidence to support practice guidelines for nutritional care of preterm infants: The Pre-B project. AJCN 2016 Feb;103(2):648S-78S  http://ajcn.nutrition.org/content/103/2/648S.full.pdf+html 

Qasem W, Friel J, Fenton T. Age of Introduction of first complementary feeding for infants: a dilemma for parents and caregivers. BMC Pediatr 2015 Sep 2;15(1):107. www.biomedcentral.com/1471-2431/15/107

Gidrewicz DA, Fenton TR. A systematic review and meta-analysis of the nutrient content of preterm and term milk.  BMC Pediatr. 2014 Aug 30;14(1):216. www.biomedcentral.com/1471-2431/14/216

Fenton TR, Premji SS, Al-Wassia H, Sauve RS. Higher versus lower protein intake in formula-fed low birth weight infants. Cochrane Database Syst Rev. 2014  Apr 21;4:CD003959.

Drewniak MA, Lyon AW, Fenton TR. Evaluation of Fat Separation and Removal Methods to Prepare Low-fat Breast Milk for Fat-intolerant Neonates With Chylothorax. Nutr Clin Pract. 2013 Aug 6 

Fenton TR, Lyon AW, Rose MS. Cord blood calcium, phosphate, magnesium, and alkaline phosphatase gestational age specific reference intervals for preterm infants. BMC Pediatrics 2011, 11:76 http://www.biomedcentral.com/1471-2431/11/76               (There are 2 typos in the paper: The abstract should say < 36 weeks not >. Table 1 should Say AGA instead of SGA, as the  infants were primarily AGA.)

Premji S. Fenton TR. Sauve RS. Higher versus lower protein intake in formula-fed low birth weight infants. Cochrane Database of Systematic Reviews 2006, Issue 1. Art. No.: CD003959. Update Issue 11, 2010.

Fenton TR. Sauve R. Using the LMS method to calculate z-scores for the Fenton preterm infant growth chart. Eur J Clin Nutr. 2007;61:1380-5. http://www.nature.com/ejcn/journal/v61/n12/pdf/1602667a.pdf

Premji S. Fenton T. Sauve R. Does amount of protein in formula matter for low birth weight infants?  Uncertain implications given the lack of adequate research in a Cochrane systematic review.  JPEN J Parenter Enteral Nutr. 2006;30(6):507-14 

Premji S. Fenton T. Sauve R. Higher versus lower protein intake in formula-fed low birth weight infants. Cochrane Neonatal Group Cochrane Database of Systematic Reviews. 2006 Jan 25;(1):CD003959.

Fenton TR, Belik J. Routine handling of milk fed to preterm infants can significantly increase osmolality. J Ped Gastroenterol Nutr 2002;3:298-302. http://journals.lww.com/jpgn/pages/articleviewer.aspx?year=2002&issue=09000&article=00011&type=abstract

Fenton TR, Tough SC, Belik J.  Breast milk supplementation for preterm infants: Parental preferences and post discharge lactation duration.  Am J Perinat 2000;17:329-333.

Fenton TR, Geggie JH,  Warners JN, Tough SC. Nutrition services in Canadian neonatal intensive care:  The role of the dietitian.  Can J Diet Pract Res 2000;61:172-175.

Fenton TR, Singhal N, Baynton RD,  Akierman A.  Serum triglycerides of very low birth weight infants.  Nutrition in Clinical Practice 1997;11:26.

Fenton TR, McMillan DD, Sauve RS: Nutrition and growth analysis of very low birthweight infants: Pediatrics 1990;86:378-83

Marchessault G, McNeil C, Ardvini M, Chau E, Jenkins A, Mendelson R, Atkinson S, Corby L, Edwards M, Fenton TR et al: Promoting breastfeeding: A role for the Dietitian/Nutritionist.  Official position paper of the Canadian Dietetic Association, J Can Diet Assoc. 1989;50:211-218.

Non-neonatal Peer-Reviewed publications

Gillis C, Fenton TR, Gramlich L, Sajobi TT, Culos-Reed SN, Bousquet-Dion G, Elsherbini N, Fiore JF Jr, Minnella EM, Awasthi R, Liberman AS, Boutros M, Carli F. Older frail prehabilitated patients who cannot attain a 400 m 6-min walking distance before colorectal surgery suffer more postoperative complications. Eur J Surg Oncol. 2020 Oct 5:S0748-7983(20)30832-5. doi: 10.1016/j.ejso.2020.09.041. PMID: 33041092

Cherak SJ, Fiest KM, VanderSluis L, Basualdo-Hammond C, Lorenzetti DL, Buhler S, Stadnyk J, Driedger L, Hards L, Gramlich L, Fenton TR. Nutrition interventions in populations with mental health conditions: a scoping review

Law SF, Fenton TR, Snyder FF, Fung E, Lewis V. Carnitine Profile Changes in Pediatric Hematopoietic Stem Cell Transplant: New Role for Carnitine? J Pediatr Hematol Oncol. 2020 Feb 6. [Epub ahead of print] PubMed PMID: 32032238.

Arafah D, Bejoy T, Fenton TR, Sabr Y, Metcalfe A. Validity and reliability of the Arabic version of Muller’s prenatal attachment inventory. Journal of Psychosomatic Obstetrics & Gynecology. 2020 Jan 16:1-9. PMID: 31948333 https://www.tandfonline.com/doi/full/10.1080/0167482X.2020.1713083

Salmon C, Sauve RS, LeJour C, Fenton T, Metcalfe A. A single gestational weight gain recommendation is possible for all classes of pregnant women. Obesity Research & Clinical Practice, 2019. PMID: 31791922. In Press.

Gillis C, Fenton TR, Sajobi TT, Minnella EM, Awasthi R, Loiselle SÈ, Liberman AS, Stein B, Charlebois P, Carli F. Trimodal prehabilitation for colorectal surgery attenuates post-surgical losses in lean body mass: A pooled analysis of randomized controlled trials. Clin Nutr. 2018 PubMed PMID: 30025745

Araujo F, Fenton TR, Lukmanji S, Raman M. Olive Oil and Soybean Oil Based Intravenous Lipid Emulsions, Liver Biochemistry and Clinical Outcomes. Nutrients. 2018 May 23;10(6).

Gillis C, Buhler K, Bresee L, Carli F, Gramlich L, Culos-Reed N, Sajobi TT, Fenton TR. Effects of nutritional prehabilitation, with and without exercise, on outcomes of patients who undergo colorectal surgery: a Systematic review and meta-analysis. Gastroenterology. 2018 Aug;155(2):391-410.

Pound CM, Blair B; Canadian Paediatric Society, Nutrition and Gastroenterology Committee. Energy and sports drinks in children and adolescents. Paediatr Child Health. 2017 Oct;22(7):406-410. PubMed PMID: 29491725; PubMed Central PMCID:PMC5823002.

Fenton T, Gillis C. Plant-based diets do not prevent most chronic diseases. Crit Rev Food Sci Nutr. 2017 Oct 20:1-2. doi: 10.1080/10408398.2017.1389692. [Epub ahead of print] PubMed PMID: 29053346.

Yeung SE, Hilkewich L, Gillis C, Heine JA, Fenton TR. Protein intakes are associated with reduced length of stay:  A comparison between ERAS and conventional care after elective colorectal surgery. Am J Clin Nutr. 2017 Jul;106(1):44-51. PubMed PMID: 28468890.

Watson-Jarvis K, Fenton TR, Driedger L. Evaluation of dietitian counselling access revealed reduced pediatrician-reported hospital admissions and increased parental knowledge and confidence. Canadian Journal of Dietetic Practice and Research. 2017 Feb 1:1-5

Howe McKenna S, Fenton TR, Noseworthy M, Anselmo M. Adequate Vitamin D Intake but Low Serum Levels in Pediatric Asthma Patients: A Pilot Study, Alberta Children's Hospital. Can Respir J. 2016;2016:6982010. http://www.hindawi.com/journals/crj/2016/6982010/

Fenton TR, Huang T. Systematic review of the association between dietary acid load, alkaline water, and cancer. BMJ Open 2016;6(6):e010438. http://bmjopen.bmj.com/content/6/6/e010438.long

Raman M, Fenton T, Crotty P, Ghosh S, Rioux K, Hundal R. A novel method to identify fat malabsorption: The serum retinyl palmitate test. Clin Chim Acta. 2015 Jan 1;438:103-6.

Fenton TR, Huang T. Systematic review of the association between dietary acid load, alkaline water, and cancer. BMJ Open 2016 Jun 13;6(6):e010438. http://bmjopen.bmj.com/content/6/6/e010438.long

Ksienski MR, Fenton TR, Eliasziw M, Zuege D, Petrasek P, Shapori R, Laupland KB. A cohort study of nutrition practices in the intensive care unit following abdominal aortic aneurysm repair. Journal of Parenteral and Enteral Nutrition 2013;37(2):261-7

S Galesloot, L McIntyre, TR Fenton, S Tyminski. Food Insecurity among Canadian Adults Receiving Diabetes Care . Can J Diet Pract Res. 2012;73:261-6

McGowan JE, Fenton TR, Wade AW, Branton JL, Robertson M. An exploratory study of sodium, potassium, and fluid nutrition status of tube-fed non-ambulatory children with severe cerebral palsy. Applied Physiology, Nutrition, and Metabolism 2012;37:715-723.

Kumar PR, Fenton TR,Shaheen AA, Raman M.  Prevalence of Vitamin D Deficiency and Response to Oral Vitamin D Supplementation in Patients Receiving Home Parenteral Nutrition. Journal of Parenteral and Enteral Nutrition 2012 Jul;36:463-9.

Watson-Jarvis K, Fenton TR, Hall K, Waterman M, Van Nest K. Acceptability of a program for parenting young overweight children. ICAN: Infant, Child, Adolescent Nutrition 2012, 4: 122.

Fenton TR, Lyon AW. Milk and Acid-Base Balance: Proposed hypothesis versus scientific evidence. J Am Coll Nutr. 2011;30(5 Suppl 1):471S-5S.

Fenton TR, Tough SC, Lyon AW, Eliasziw M, Hanley DA. Causal assessment of dietary acid load and bone disease: a systematic review & meta-analysis applying  Hill's epidemiologic criteria for causality. Nutr J. 2011 Apr 30;10:41. http://www.nutritionj.com/content/10/1/41

Watson-Jarvis K, Fenton TR, MacNeil D, Campbell K. Preschool nutrition risk in Calgary. Can J Diet Pract Res  2011;72(1):23.

Watson-Jarvis K, MacNeil D, Fenton TR, Campbell K. Successful Implementation of NutriSTEP® (Nutrition Screening Tool for Every Preschooler) in Community Health Centres. Can J Diet Pract Res 2011;72(2):96-8.

Fenton TR, Eliasziw M, Tough SC, Lyon AW, Brown JP, Hanley DA.Low urine pH and acid excretion do not predict bone fractures or the loss of bone mineral density: a prospective cohort study. BMC Musculoskeletal Disorders 2010;11:88. http://www.biomedcentral.com/1471-2474/11/88

Sarkisian S, Fenton TR, Shaheen AA, Raman M. Parenteral nutrition hyperglycemia in non-critically ill inpatients is associated with higher mortality. Can J Gastroenterol. 2010 Jul;24(7):453-7. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2918487/pdf/cjg24453.pdf

Fenton TR, Lyon AW, Eliasziw M, Tough SC, Hanley DA. Meta-analysis of the effect of the acid-ash hypothesis on calcium balance. J Bone Miner Res. 2009;24:1835-40. http://onlinelibrary.wiley.com/store/10.1359/jbmr.090515/asset/5650241108_ftp.pdf?v=1&t=hk5dz7s8&s=148984acf7bc3e06cfcccfe1352ed436d04d17e3

Fenton TR, Lyon AW, Eliasziw M, Tough SC, Hanley DA. Phosphate decreases urine calcium and increases calcium balance: A meta-analysis of the osteoporosis acid-ash diet hypothesis. Nutrition Journal 2009, 8:41. www.nutritionj.com/content/8/1/41

Yeung SE, Fenton TR. Postoperative food preferences after colorectal surgery. Dis Colon Rectum, 52(9):1616-23, 2009.

Fenton TR, Eliasziw M, Lyon AW, Tough SC, Brown JP, Hanley DA. Five year stability of within-patient ion excretion and urine pH in fasting-morning-urine specimens. Nutrition Research 2009;29:320-6

Fenton TR, Eliasziw M, Lyon AW, Tough SC, Hanley DA. Osteoporosis and the acid-ash diet hypothesis: The quantity of calcium excretion associated with the net acid excretion of the modern diet. Am J Clin Nutr 2008;88 1159-1166.

Fenton TR, Thirsk, JE: Twin pregnancy: Maternal weight gain of non-smoking normal weight women, Canadian Journal of Public Health, 1994; 85:37-40.

Non-Peer Reviewed Publications

Fenton CJ, Fenton TR, Huang T. Further Evidence of No Association between Dietary Acid Load and Disease. J Nutr. 2017 Feb;147(2):272. doi:10.3945/jn.116.242107. PubMed PMID: 28148772.

Fenton TR, Fenton CJ. Paleo diet still lacks evidence. Am J Clin Nutr 2016 Sept;104(3) 

Fenton TR, Fenton CJ. Evidence does not support the alkaline diet. Osteoporos Int. 2016 Jul;27(7):2387-8

Fenton CJ, Fenton TR. Dietary carbohydrate restriction: Compelling theory for further research. Nutrition. 2016 Jan;32(1):153.

Villar J, Giuliani F, Fenton TR, Ohuma EO, Ismail LC, Kennedy SH; INTERGROWTH-21st Consortium. INTERGROWTH-21st very preterm size at birth reference charts. Lancet. 2016 Feb 27;387(10021):844-5.

Fenton TR, Armour B, Thirsk J. Comment on "Modulation of metabolic detoxification pathways using foods and food-derived components: A scientific review with clinical application". J Nutr Metab. 2015;2015:934070.

Holmes R, Couzens K, Tsui V, Hards L, Wiens KP, Fenton TR. Comment on the low FODMAP diet.  Nutr Clin Pract. 2013 Dec;28(6):773-4. 

Fenton TR.  Growth charts for preterm infants and related tools for growth monitoring. Chapter 1 in Ed: Griffin IJ. Perinatal Growth and Nutrition. Taylor and Francis/ CRC Press. 2014.

Fenton TR, Kim JH. Response. Intrauterine growth references are appropriate to monitor postnatal growth of preterm neonates. BMC Pediatr. 2014;14:14. www.biomedcentral.com/1471-2431/14/14

Fenton TR, Fenton CJ. Detox doubts. Reader’s Digest (Canada) July 2013 

Alkaline products: healthy or all wet? Consumer Reports on Health 2013:25(1), 2013 Consumer Reports on Health, Vol. 25 Issue 1, p6

Fenton TR, Fenton CJ. Nutrition science mustn't accept a lower level of evidence. Nutr Rev. 2011 Jul;69(7):413-414.

Fenton TR, Eliasziw M, Hanley DA. Effect size at the end of supplementation period in terms of g/cm2. BMJ 2007: http://www.bmj.com/cgi/eletters/333/7572/775

Fenton TR. Letter to the Editor: Not all osmolality is created equal. Arch Dis Child Fetal Neonatal Ed. 2006;91:F234

Fenton TR. Letter to the Editor: Osmolality of commonly used medications and formulas in the Neonatal Intensive Care Unit.  Nutrition in Clinical Practice 1998;13:89