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Chris Kelaiditis

Lecturer in Nutrition

Chris Kelaiditis

About Research

Email: chris.kelaiditis@stmarys.ac.uk

Biography

As a returning alumnus, Chris is currently a lecturer in nutrition at St Mary’s University Twickenham, educating the next generation of registered nutritionists.

After completing his BSc in Nutrition and Dietetics, Chris practised as a registered dietitian before completing the MSc in Nutrition and Genetics at St Mary's University Twickenham, which was followed by an industry-funded PhD in Health Sciences at the University of Roehampton. For his PhD, Chris explored the effects of omega-3 polyunsaturated fatty acids on affect, mood, cognition, and brain structure and function.

Whilst working on his PhD, Chris won a competition-based research award, which granted him a research assistant contract with the Global Organisation of EPA and DHA omega-3s.

After his PhD, Chris worked with Prof Kevin Whelan and Dr Aaron Bancil on the ADDapt trial at King’s College London, where he led and coordinated recruitment, data collection and management for the research project on a day-to-day basis and carried out research in food additives, food-related quality of life and other aspects of diet and nutrition in inflammatory bowel disease.

Awards

  • First competition-based GOED Inaugural Clinical Study Database Research Award (April 2023).
  • International Society for the Study of Fatty Acids and Lipids New Investigator Award (June 2023).

Qualifications and accreditations

  • BSc Human Nutrition and Dietetics (Technological Educational Institute of Crete)
  • PgDip Human Nutrition (University of Aberdeen)
  • MSc Nutrition and Genetics (St Mary's University, Twickenham)
  • PhD Health Sciences (University of Roehampton).

Membership of professional bodies

  • HCPC Registered Dietitian.

Research

Research profile

Research activities

  • Meta-analytic protocol design, set up on Prospero and implementation of systematic reviews and meta-analyses, write-up and publication of based on Cochrane methodology using RevMan.
  • Systematic review of evidence base in omega-3 polyunsaturated fatty acid literature, clinical trial data extraction and CSD update for GOED.
  • Protocol design and set up on Clinicaltrials.gov, ethics applications, risk assessments and implementation of randomised, double-blind, placebo-controlled supplementation, neuroimaging and clinical trials; NutriMOOD, NeuroMOOD and the ADDapt Trial.
  • Set up of material transfer and data sharing agreements, collaboration and knowledge exchange with internal and external collaborators in the UK (King’s College London Institute of Psychiatry, Psychology & Neuroscience) and France (INSERM, Institut Pasteur) in liaison with university legal and financial teams.
  • Administration and analysis of validated food diaries and food frequency questionnaires, survey set up on Qualtrics, Nutritics and Intake24 for dietary data collection, management, analysis and interpretation.
  • Use of Cochrane RevMan and RoB2 meta-analytic software, MS Office suite, IBM SPSS Statistics, MATLAB-based SPM12 and CAT12, Ubuntu-based LCModel, ThermoFisher Cloud, ThermoFisher ConnectTM.
  • MRI Authorised Person at Royal Holloway University of London Combined Universities Brain Imaging Centre, brain magnetic resonance imaging data acquisition on 3 Tesla Siemens Magnetom TIM Trio Scanner for 1H-MRI, VBM and fMRI analyses.
  • Administration, scoring and interpretation of results of psychometric surveys on Qualtrics with validated questionnaires used in nutritional psychiatry comprising GAD-7, PHQ-8 and DASS-21, and CANTAB connect psycho-cognitive tests comprising EBT, RVP, SST and SWM.
  • Anthropometry, capillary and venous blood collection, cheek cells collection, fatty acid methyl esters extraction from dried blood spot cards, lipidomics via GC-FID, buccal genomic DNA extraction, isolation and purification, qPCR (SNP genotyping) using TaqMan chemistry on StepOnePlusTM 96-well Real-Time PCR System and StepOneTM Software, Bradford Assay, Choline Colorimetric Assay, Gel Electrophoresis, NanoDrop 2000 Spectrophotometer and Software Interface.

Publications

  • Kelaiditis CF, Gibson EL, Dyall SC, Effects of long-chain omega-3 polyunsaturated fatty acids on reducing anxiety and/or depression in adults; A systematic review and meta-analysis of randomised controlled trials. Prostaglandins Leukot Essent Fatty Acids. 2023 May;192:102572. doi: 10.1016/j.plefa.2023.102572. Epub 2023 Apr 2. PMID: 37028202.
  • Kelaiditis CF, Gibson EL, Dyall SC, The effects of a high eicosapentaenoic acid multinutrient supplement on measures of stress, anxiety and depression in young adults: Study protocol for NutriMOOD, a randomised double-blind placebo-controlled trial. Prostaglandins Leukot Essent Fatty Acids. 2021 Oct;173:102335. doi: 10.1016/j.plefa.2021.102335
  • A Buckley, Y Xu, S Burke, A Bancil, A Sandall, S Cox, V Rucco, C Kelaiditis, R Gibson, B Chassaing, M Rossi, J Lindsay, K Whelan, P0757 Emulsifier restriction does not impair nutrient intake and improves food-related quality of life in active Crohn’s disease: dietary analysis of the ADDapt randomised controlled trial, Journal of Crohn's and Colitis, Volume 19, Issue Supplement_1, January 2025, Pages i1460–i1462, 
  • A Bancil, M Rossi, A Sandall, S Cox, K Dalrymple, C Kelaiditis, A Buckley, S Burke, Y Xu, L Smith, E Pena, F Harrison, A Hart, P Irving, B Chassaing, J Lindsay, K Whelan, DOP097 Emulsifier restriction is an effective therapy for active Crohn’s disease: the ADDapt trial - a multi-centre, randomised, double-blind, placebo-controlled, re-supplementation trial in 154 patients, Journal of Crohn's and Colitis, Volume 19, Issue Supplement_1, January 2025, Page i262, 
  • A Bancil, M Rossi, A Sandall, S Cox, K Dalrymple, C Kelaiditis, A Buckley, S Burke, Y Xu, L Smith, E Pena, F Harrison, A Hart, P Irving, B Chassaing, J Lindsay, K Whelan, 796 A multi-centre, randomised, double-blind, placebo-controlled, re-supplementation trial demonstrates the efficacy of a low emulsifier diet in 154 patients with mild to moderately active Crohn’s disease; The ADDapt Trial, Gastroenterology, Volume 169, Issue Supplement_1, May 2025, Pages s187-s188, 10.1016/S0016-5085(25)01380-0
  • Foster-Brown, C., Harrison, K., Kelaiditis, C., Pilic, L., and Mavrommatis, Y. (2021), Associations between dietary-choline intake, B-vitamins and anxiety levels. Proceedings of the Nutrition Society, 80(OCE1), E8. doi:10.1017/S0029665121000094
  • Harrison, K., Foster-Brown, C., Kelaiditis, C., Mavrommatis, Y., and Pilic, L. (2020). The associations between phosphatidylethanolamine N-methyltransferase gene, dietary choline intake and anxiety and depression in healthy UK adults. Proceedings of the Nutrition Society, 79(OCE3), E784. doi:10.1017/S0029665120007703.

Media enquiries

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