Persea Americana for Total Health (PATH ) Study

NCT ID: NCT02740439

Last Updated: 2016-10-17

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-02-29

Study Completion Date

2019-02-28

Brief Summary

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The proposed work will investigate the effects of avocados on abdominal obesity and glycemic control among overweight/obese adults.

Detailed Description

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The proposed work will investigate the effects of avocados on abdominal obesity and glycemic control among overweight/obese adults. Further, changes in GI microbiota composition and cognitive function will be assessed to comprehensively understand systemic benefits of avocado consumption on gut and brain function. This research study has two aims: 1) To determine the effects of regular avocado intake on metabolic syndrome risk factors, specifically, abdominal obesity and glycemic control, among overweight and obese adults; and 2) to investigate the implications of avocado intake on measures of GI microbiota composition and cognitive function.

Conditions

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Obesity, Abdominal Insulin Resistance Insulin Sensitivity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Intervention Meal

Intervention meals will contain 1 large avocado and be consumed daily for 12 weeks.

Group Type EXPERIMENTAL

Avocado

Intervention Type OTHER

The intervention meals will contain 1 large avocado.

Control Meal

Control meals will be isocaloric to the intervention meals but without avocado. They will also be consumed daily for 12 weeks.

Group Type PLACEBO_COMPARATOR

Control

Intervention Type OTHER

The control meals will be isocaloric to the intervention meals but will not contain avocado.

Interventions

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Avocado

The intervention meals will contain 1 large avocado.

Intervention Type OTHER

Control

The control meals will be isocaloric to the intervention meals but will not contain avocado.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Males and females
* Between the ages of 25-45 years at the time of consent
* Body mass index ≥27.5kg/m2
* Normal or corrected-to-normal vision based on the minimal 20/20 standard in order to complete the cognitive task (below 20/20 vision).
* Ability to drop-off fecal sample within 15 minutes of defecation

Exclusion Criteria

* Current pregnancy or lactation
* Tobacco use
* Avocado allergy or intolerance
* Food allergies, lactose intolerance
* Latex allergy
* Prior diagnosis of metabolic and gastrointestinal disease (cardiovascular disease and type 1 or type 2 diabetes, chronic constipation, diarrhea, Crohn's disease, celiac disease, ulcerative colitis, irritable bowel syndrome, diverticulosis, stomach or duodenal ulcers, hepatitis, HIV, cancer, etc.)
* Prior diagnosis of cognitive or physical disability, including ADHD, severe asthma, epilepsy, chronic kidney disease, and dependence upon a wheelchair/walking
* Use of any anti-psychotic, anti-depressant, anti-anxiety, or ADD/ADHD medications
* Use of medications that alter normal bowel function and metabolism (e.g., recent antibiotic use, laxatives, enemas, anti-diarrheal agents, narcotics, antacids, antispasmodics, diuretics, anticonvulsants).
* High BMI that is not representative of being overweight or obese (e.g. resistance trained individuals, football players)
* Prior malabsorptive bariatric surgery (i.e. gastric bypass, sleeve gastrectomy) or restrictive bariatric surgery (i.e. adjustable gastric band) within the past 2 years
Minimum Eligible Age

25 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Hass Avocado Board

OTHER

Sponsor Role collaborator

University of Illinois at Urbana-Champaign

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Hannah D Holscher, PhD RD

Role: PRINCIPAL_INVESTIGATOR

University of Illinois at Urbana-Champaign

Locations

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University of Illinois, Urbana-Champaign

Urbana, Illinois, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Hannah D Holscher, PhD RD

Role: CONTACT

217-300-2512

Naiman A Khan, PhD RD

Role: CONTACT

217-300-2197

Facility Contacts

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Ginger Reeser, MS, RD

Role: primary

References

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Hughes RL, Pindus DM, Khan NA, Burd NA, Holscher HD. Associations between Accelerometer-Measured Physical Activity and Fecal Microbiota in Adults with Overweight and Obesity. Med Sci Sports Exerc. 2023 Apr 1;55(4):680-689. doi: 10.1249/MSS.0000000000003096. Epub 2022 Dec 22.

Reference Type DERIVED
PMID: 36728974 (View on PubMed)

Khan NA, Edwards CG, Thompson SV, Hannon BA, Burke SK, Walk ADM, Mackenzie RWA, Reeser GE, Fiese BH, Burd NA, Holscher HD. Avocado Consumption, Abdominal Adiposity, and Oral Glucose Tolerance Among Persons with Overweight and Obesity. J Nutr. 2021 Sep 4;151(9):2513-2521. doi: 10.1093/jn/nxab187.

Reference Type DERIVED
PMID: 34191028 (View on PubMed)

Thompson SV, Bailey MA, Taylor AM, Kaczmarek JL, Mysonhimer AR, Edwards CG, Reeser GE, Burd NA, Khan NA, Holscher HD. Avocado Consumption Alters Gastrointestinal Bacteria Abundance and Microbial Metabolite Concentrations among Adults with Overweight or Obesity: A Randomized Controlled Trial. J Nutr. 2021 Apr 8;151(4):753-762. doi: 10.1093/jn/nxaa219.

Reference Type DERIVED
PMID: 32805028 (View on PubMed)

Edwards CG, Walk AM, Thompson SV, Reeser GE, Erdman JW Jr, Burd NA, Holscher HD, Khan NA. Effects of 12-week avocado consumption on cognitive function among adults with overweight and obesity. Int J Psychophysiol. 2020 Feb;148:13-24. doi: 10.1016/j.ijpsycho.2019.12.006. Epub 2019 Dec 14.

Reference Type DERIVED
PMID: 31846631 (View on PubMed)

Jones AR, Robbs CM, Edwards CG, Walk AM, Thompson SV, Reeser GE, Holscher HD, Khan NA. Retinal Morphometric Markers of Crystallized and Fluid Intelligence Among Adults With Overweight and Obesity. Front Psychol. 2018 Dec 21;9:2650. doi: 10.3389/fpsyg.2018.02650. eCollection 2018.

Reference Type DERIVED
PMID: 30622502 (View on PubMed)

Other Identifiers

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16277

Identifier Type: -

Identifier Source: org_study_id

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