Effects of a 4-week Raw, Plant-based Diet on Anthropometric and Cardiovascular Risk Factors

NCT ID: NCT03134235

Last Updated: 2017-05-23

Study Results

Results pending

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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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

33 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-01-03

Study Completion Date

2017-03-15

Brief Summary

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This study evaluates the effects of a prescribed 4-week raw, plant-based dietary intervention in the treatment of excess body weight, hypercholesterolemia, and hypertension in the clinical setting.

Detailed Description

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Plant-based diets have emerged in the literature as effective therapeutic strategies in the reduction of body weight, serum lipids and blood pressure. In addition, raw fruit and vegetable consumption has also been associated with the reduction of these clinical indicators.

Participants were instructed to follow a prescribed, raw, plant-based dietary intervention for four weeks. All animal products, including eggs and dairy, were excluded. Cooked foods, free oils, soda, alcohol and coffee were also to be excluded. All meals and snacks were provided to the participants for the full duration of the intervention. Emphasized were raw fruits and vegetables, while seeds, avocado, raw oats, raw buckwheat, and dehydrated foods were prepared as condiments. Vitamin, herbal, and mineral supplements were to be discontinued unless otherwise clinically indicated. Participants were not advised to alter their exercise habits.

Participants came to a total of 4 follow-up visits. A laboratory panel was obtained at baseline and at 4-weeks. A 24-hour recall was also conducted at baseline and at 4-weeks. Anthropometrics, hemodynamics, and medication needs were assessed on a weekly basis.

Conditions

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Hypertension Elevated Cholesterol Overweight and Obesity

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Repeated measures, single group design.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Raw, plant-based diet

A raw, plant-based diet was prescribed for 4 weeks.

Group Type EXPERIMENTAL

Dietary Intervention

Intervention Type OTHER

Subjects consumed a raw, vegan diet for 4-weeks with an emphasis on raw fruit and vegetable consumption.

Interventions

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Dietary Intervention

Subjects consumed a raw, vegan diet for 4-weeks with an emphasis on raw fruit and vegetable consumption.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Body Mass Index ≥25.0 kg/m\^2
* Serum low-density lipoprotein cholesterol concentration ≥100
* Systolic blood pressure ≥140 mmHg or diastolic blood pressure ≥90

Exclusion Criteria

* Tobacco use
* Drug abuse
* Excessive alcohol consumption (\>2 glasses of wine or alcohol equivalent per day for men or \>1 glass of wine or alcohol equivalent for woman)
* Current cancer diagnosis
* Estimated glomerular filtration rate \<60 mg/dL
* Clinically defined infection
* Mental disability
* Hospitalization \<6 months
* Previous exposure to plant-based diet
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Montgomery Heart & Wellness

UNKNOWN

Sponsor Role collaborator

Texas Woman's University

OTHER

Sponsor Role lead

Responsible Party

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Rami Najjar

Student

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Rami Najjar

Role: PRINCIPAL_INVESTIGATOR

Texas Woman's University

Locations

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Montgomery Heart & Wellness

Houston, Texas, United States

Site Status

Countries

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United States

References

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Barnard ND, Cohen J, Jenkins DJ, Turner-McGrievy G, Gloede L, Jaster B, Seidl K, Green AA, Talpers S. A low-fat vegan diet improves glycemic control and cardiovascular risk factors in a randomized clinical trial in individuals with type 2 diabetes. Diabetes Care. 2006 Aug;29(8):1777-83. doi: 10.2337/dc06-0606.

Reference Type BACKGROUND
PMID: 16873779 (View on PubMed)

Bazzano LA. Effects of soluble dietary fiber on low-density lipoprotein cholesterol and coronary heart disease risk. Curr Atheroscler Rep. 2008 Dec;10(6):473-7. doi: 10.1007/s11883-008-0074-3.

Reference Type BACKGROUND
PMID: 18937894 (View on PubMed)

Bloomer RJ, Kabir MM, Canale RE, Trepanowski JF, Marshall KE, Farney TM, Hammond KG. Effect of a 21 day Daniel Fast on metabolic and cardiovascular disease risk factors in men and women. Lipids Health Dis. 2010 Sep 3;9:94. doi: 10.1186/1476-511X-9-94.

Reference Type BACKGROUND
PMID: 20815907 (View on PubMed)

Boeing H, Bechthold A, Bub A, Ellinger S, Haller D, Kroke A, Leschik-Bonnet E, Muller MJ, Oberritter H, Schulze M, Stehle P, Watzl B. Critical review: vegetables and fruit in the prevention of chronic diseases. Eur J Nutr. 2012 Sep;51(6):637-63. doi: 10.1007/s00394-012-0380-y. Epub 2012 Jun 9.

Reference Type BACKGROUND
PMID: 22684631 (View on PubMed)

Djousse L, Arnett DK, Coon H, Province MA, Moore LL, Ellison RC. Fruit and vegetable consumption and LDL cholesterol: the National Heart, Lung, and Blood Institute Family Heart Study. Am J Clin Nutr. 2004 Feb;79(2):213-7. doi: 10.1093/ajcn/79.2.213.

Reference Type BACKGROUND
PMID: 14749225 (View on PubMed)

Fraser G, Katuli S, Anousheh R, Knutsen S, Herring P, Fan J. Vegetarian diets and cardiovascular risk factors in black members of the Adventist Health Study-2. Public Health Nutr. 2015 Feb;18(3):537-45. doi: 10.1017/S1368980014000263. Epub 2014 Mar 17.

Reference Type BACKGROUND
PMID: 24636393 (View on PubMed)

Jenkins DJ, Kendall CW, Popovich DG, Vidgen E, Mehling CC, Vuksan V, Ransom TP, Rao AV, Rosenberg-Zand R, Tariq N, Corey P, Jones PJ, Raeini M, Story JA, Furumoto EJ, Illingworth DR, Pappu AS, Connelly PW. Effect of a very-high-fiber vegetable, fruit, and nut diet on serum lipids and colonic function. Metabolism. 2001 Apr;50(4):494-503. doi: 10.1053/meta.2001.21037.

Reference Type BACKGROUND
PMID: 11288049 (View on PubMed)

Koebnick C, Garcia AL, Dagnelie PC, Strassner C, Lindemans J, Katz N, Leitzmann C, Hoffmann I. Long-term consumption of a raw food diet is associated with favorable serum LDL cholesterol and triglycerides but also with elevated plasma homocysteine and low serum HDL cholesterol in humans. J Nutr. 2005 Oct;135(10):2372-8. doi: 10.1093/jn/135.10.2372.

Reference Type BACKGROUND
PMID: 16177198 (View on PubMed)

Le LT, Sabate J. Beyond meatless, the health effects of vegan diets: findings from the Adventist cohorts. Nutrients. 2014 May 27;6(6):2131-47. doi: 10.3390/nu6062131.

Reference Type BACKGROUND
PMID: 24871675 (View on PubMed)

Macknin M, Kong T, Weier A, Worley S, Tang AS, Alkhouri N, Golubic M. Plant-based, no-added-fat or American Heart Association diets: impact on cardiovascular risk in obese children with hypercholesterolemia and their parents. J Pediatr. 2015 Apr;166(4):953-9.e1-3. doi: 10.1016/j.jpeds.2014.12.058. Epub 2015 Feb 12.

Reference Type BACKGROUND
PMID: 25684089 (View on PubMed)

Mishra S, Xu J, Agarwal U, Gonzales J, Levin S, Barnard ND. A multicenter randomized controlled trial of a plant-based nutrition program to reduce body weight and cardiovascular risk in the corporate setting: the GEICO study. Eur J Clin Nutr. 2013 Jul;67(7):718-24. doi: 10.1038/ejcn.2013.92. Epub 2013 May 22.

Reference Type BACKGROUND
PMID: 23695207 (View on PubMed)

Ras RT, Geleijnse JM, Trautwein EA. LDL-cholesterol-lowering effect of plant sterols and stanols across different dose ranges: a meta-analysis of randomised controlled studies. Br J Nutr. 2014 Jul 28;112(2):214-9. doi: 10.1017/S0007114514000750. Epub 2014 Apr 29.

Reference Type BACKGROUND
PMID: 24780090 (View on PubMed)

Turner-McGrievy GM, Barnard ND, Scialli AR. A two-year randomized weight loss trial comparing a vegan diet to a more moderate low-fat diet. Obesity (Silver Spring). 2007 Sep;15(9):2276-81. doi: 10.1038/oby.2007.270.

Reference Type BACKGROUND
PMID: 17890496 (View on PubMed)

Wu L, Sun D, He Y. Fruit and vegetables consumption and incident hypertension: dose-response meta-analysis of prospective cohort studies. J Hum Hypertens. 2016 Oct;30(10):573-80. doi: 10.1038/jhh.2016.44. Epub 2016 Jun 16.

Reference Type BACKGROUND
PMID: 27306085 (View on PubMed)

Yokoyama Y, Nishimura K, Barnard ND, Takegami M, Watanabe M, Sekikawa A, Okamura T, Miyamoto Y. Vegetarian diets and blood pressure: a meta-analysis. JAMA Intern Med. 2014 Apr;174(4):577-87. doi: 10.1001/jamainternmed.2013.14547.

Reference Type BACKGROUND
PMID: 24566947 (View on PubMed)

Other Identifiers

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19279

Identifier Type: -

Identifier Source: org_study_id

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