Cited by 23Nutrition, Genetics, and DiseaseNutritional Studies and DietDietary Effects on Health

Assessment of the impact of a personalised nutrition intervention in impaired glucose regulation over 26 weeks: a randomised controlled trial

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Karvela, Maria, Golden, Caroline T., Bell, Nikeysha, Martin-Li, Stephanie, Bedzo-Nutakor, Judith, Bosnic, Natalie, DeBeaudrap, Pierre, de Mateo-Lopez, Sara +10 more·2024·Scientific Reports

Abstract

Dietary interventions can reduce progression to type 2 diabetes mellitus (T2DM) in people with non-diabetic hyperglycaemia. In this study we aimed to determine the impact of a DNA-personalised nutrition intervention in people with non-diabetic hyperglycaemia over 26 weeks. ASPIRE-DNA was a pilot study. Participants were randomised into three arms to receive either (i) Control arm: standard care (NICE guidelines) (n = 51), (ii) Intervention arm: DNA-personalised dietary advice (n = 50), or (iii) Exploratory arm: DNA-personalised dietary advice via a self-guided app and wearable device (n = 46). The primary outcome was the difference in fasting plasma glucose (FPG) between the Control and Intervention arms after 6 weeks. 180 people were recruited, of whom 148 people were randomised, mean age of 59 years (SD = 11), 69% of whom were female. There was no significant difference in the FPG change between the Control and Intervention arms at 6 weeks (- 0.13 mmol/L (95% CI [- 0.37, 0.11]), p = 0.29), however, we found that a DNA-personalised dietary intervention led to a significant reduction of FPG at 26 weeks in the Intervention arm when compared to standard care (- 0.019 (SD = 0.008), p = 0.01), as did the Exploratory arm (- 0.021 (SD = 0.008), p = 0.006). HbA1c at 26 weeks was significantly reduced in the Intervention arm when compared to standard care (- 0.038 (SD = 0.018), p = 0.04). There was some evidence suggesting prevention of progression to T2DM across the groups that received a DNA-based intervention (p = 0.06). Personalisation of dietary advice based on DNA did not result in glucose changes within the first 6 weeks but was associated with significant reduction of FPG and HbA1c at 26 weeks when compared to standard care. The DNA-based diet was effective regardless of intervention type, though results should be interpreted with caution due to the low sample size. These findings suggest that DNA-based dietary guidance is an effective intervention compared to standard care, but there is still a minimum timeframe of adherence to the intervention before changes in clinical outcomes become apparent.Trial Registration: www.clinicaltrials.gov.uk Ref: NCT03702465.

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  • Karvela et al indicated that the effect of PHT on improving HbA1c was not significantly different compared to the control group (P=.31).

    “Karvela et al [42] indicated that the effect of PHT on improving HbA1c was not significantly different compared to the control group (P=.31).”

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  1. [38]Arkadianos I Improved weight management using genetic information to personalize a calorie controlled diet Nutr. J. 2007 6 29 10.1186/1475-2891-6-29 17945020 PMC2151062 · DOI

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Authors
Karvela, M., Golden, C. T., Bell, N., Martin-Li, S., Bedzo-Nutakor, J., Bosnic, N., DeBeaudrap, P., de Mateo-Lopez, S., Alajrami, A., Qin, Y., Eze, M., Hon, T.-K., Simón-Sánchez, J., Sahoo, R., Pearson-Stuttard, J., Soon-Shiong, P., Toumazou, C., & Oliver, N.
Affiliations
Imperial College London (GB)
Corresponding author
Toumazou, Christofer
Venue
Scientific Reports
Published
2024-03-05
Volume
14
Issue
1
Pages
5428-5428
ISSN
2045-2322 (ISSN-L)
OpenAlex
W4392458671
Cited by
23
References
80
Citations by year
2026: 9 · 2025: 14
FWCI
6.10
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • National Institute for Health and Care Research
  • Department of Health and Social Care
  • Imperial College London
  • Imperial College Healthcare NHS Trust
  • NIHR Imperial Biomedical Research Centre
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Nutrition, Genetics, and Disease
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
  • Health Sciences › Medicine › Physiology › Dietary Effects on Health
Keywords
personalized nutrition, prediabetes, non-diabetic hyperglycaemia, type 2 diabetes prevention, fasting blood glucose, HbA1c, wearable devices, dietary intervention, pilot study, older adults, diabetes prevention
MeSH terms
Aged, Diabetes Mellitus, Type 2, DNA, Female, Glucose, Glycated Hemoglobin, Humans, Hyperglycemia, Male, Middle Aged, Pilot Projects

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