Assessing the Impact of a Plant-Based Diet for Diabetes Prevention
NCT ID: NCT06571279
Last Updated: 2025-12-11
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
9 participants
INTERVENTIONAL
2024-10-14
2025-11-25
Brief Summary
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Detailed Description
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Conditions
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Study Design
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NA
SINGLE_GROUP
PREVENTION
NONE
Study Groups
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Plant-based diet
5 weeks of plant-based meals and snacks.
Plant-based diet
Standard plant-based meals will be provided directly to participants. The dietary intervention will begin with a one-week Western diet run-in; hereafter, participants will consume plant-based meals for approximately 5 weeks. Total energy provided will be equal to REE X 1.4 to account for light physical activity to support weight maintenance. High-inositol snacks will be provided to meet energy needs. Meals and snacks combined will provide a minimum of 20mg total inositol/kg body weight. For example, a 200lb participant will consume 1.8g daily, which is consistent with doses used in prior studies.
Interventions
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Plant-based diet
Standard plant-based meals will be provided directly to participants. The dietary intervention will begin with a one-week Western diet run-in; hereafter, participants will consume plant-based meals for approximately 5 weeks. Total energy provided will be equal to REE X 1.4 to account for light physical activity to support weight maintenance. High-inositol snacks will be provided to meet energy needs. Meals and snacks combined will provide a minimum of 20mg total inositol/kg body weight. For example, a 200lb participant will consume 1.8g daily, which is consistent with doses used in prior studies.
Eligibility Criteria
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Inclusion Criteria
* High waist circumference (women greater than or equal to 35"Íž men greater than or equal to 40")
* Prediabetes (based on fasting glucose 100-125 mg/dL, HbA1c 5.7-6.4, or 2-hr post-oral glucose tolerance test glucose screen between 140-199mg/dL)
* Physical activity below national guidelines
* Aged 30-55 (premenopausal for women)
* Following a Western diet
Exclusion Criteria
* Take medications that may affect insulin sensitivity
* More than 5% weight change within 6 months of screening
* History of bariatric surgery
* Report any dietary supplement, medication, or medical condition known to significantly affect weight or metabolism
* Take hormone replacement therapy
* Consume 3 or more servings of combined fruit and vegetables daily and/or 3 or more servings of whole grains daily
* Any food allergy more severe than grade 1 on the CoFAR Grading Scale for Systemic Allergic Reactions, Version 3.0 or allergy to lidocaine
30 Years
55 Years
ALL
Yes
Sponsors
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Jean L. Fry
OTHER
Responsible Party
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Jean L. Fry
Assistant Professor- PI
Principal Investigators
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Jean L Fry, PhD
Role: PRINCIPAL_INVESTIGATOR
University of Kentucky
Locations
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University of Kentucky CCTS
Lexington, Kentucky, United States
Countries
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References
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Bedard A, Riverin M, Dodin S, Corneau L, Lemieux S. Sex differences in the impact of the Mediterranean diet on cardiovascular risk profile. Br J Nutr. 2012 Oct 28;108(8):1428-34. doi: 10.1017/S0007114511006969. Epub 2012 Jan 6.
Chen Z, Zuurmond MG, van der Schaft N, Nano J, Wijnhoven HAH, Ikram MA, Franco OH, Voortman T. Plant versus animal based diets and insulin resistance, prediabetes and type 2 diabetes: the Rotterdam Study. Eur J Epidemiol. 2018 Sep;33(9):883-893. doi: 10.1007/s10654-018-0414-8. Epub 2018 Jun 8.
Perreault L, Ma Y, Dagogo-Jack S, Horton E, Marrero D, Crandall J, Barrett-Connor E; Diabetes Prevention Program. Sex differences in diabetes risk and the effect of intensive lifestyle modification in the Diabetes Prevention Program. Diabetes Care. 2008 Jul;31(7):1416-21. doi: 10.2337/dc07-2390. Epub 2008 Mar 20.
Leblanc V, Begin C, Hudon AM, Royer MM, Corneau L, Dodin S, Lemieux S. Gender differences in the long-term effects of a nutritional intervention program promoting the Mediterranean diet: changes in dietary intakes, eating behaviors, anthropometric and metabolic variables. Nutr J. 2014 Nov 22;13:107. doi: 10.1186/1475-2891-13-107.
Sargrad KR, Homko C, Mozzoli M, Boden G. Effect of high protein vs high carbohydrate intake on insulin sensitivity, body weight, hemoglobin A1c, and blood pressure in patients with type 2 diabetes mellitus. J Am Diet Assoc. 2005 Apr;105(4):573-80. doi: 10.1016/j.jada.2005.01.009.
Bedard A, Tchernof A, Lamarche B, Corneau L, Dodin S, Lemieux S. Effects of the traditional Mediterranean diet on adiponectin and leptin concentrations in men and premenopausal women: do sex differences exist? Eur J Clin Nutr. 2014 May;68(5):561-6. doi: 10.1038/ejcn.2014.27. Epub 2014 Mar 5.
Minambres I, Cuixart G, Goncalves A, Corcoy R. Effects of inositol on glucose homeostasis: Systematic review and meta-analysis of randomized controlled trials. Clin Nutr. 2019 Jun;38(3):1146-1152. doi: 10.1016/j.clnu.2018.06.957. Epub 2018 Jun 21.
Soldevila-Domenech N, Pastor A, Sala-Vila A, Lazaro I, Boronat A, Munoz D, Castaner O, Fagundo B, Corella D, Fernandez-Aranda F, Martinez-Gonzalez MA, Salas-Salvado J, Fito M, de la Torre R. Sex differences in endocannabinoids during 3 years of Mediterranean diet intervention: Association with insulin resistance and weight loss in a population with metabolic syndrome. Front Nutr. 2022 Dec 1;9:1076677. doi: 10.3389/fnut.2022.1076677. eCollection 2022.
Brennan L, Gibbons H. Sex matters: a focus on the impact of biological sex on metabolomic profiles and dietary interventions. Proc Nutr Soc. 2020 May;79(2):205-209. doi: 10.1017/S002966511900106X. Epub 2019 Jul 31.
Larner J, Brautigan DL, Thorner MO. D-chiro-inositol glycans in insulin signaling and insulin resistance. Mol Med. 2010 Nov-Dec;16(11-12):543-52. doi: 10.2119/molmed.2010.00107. Epub 2010 Aug 27.
Other Identifiers
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95349
Identifier Type: -
Identifier Source: org_study_id
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