Impact of Eating Beans on Metabolism

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

36 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-10-30

Study Completion Date

2025-08-15

Brief Summary

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The purpose of this research is to test how eating a meal containing beans impacts how participants' bodies use food for energy.

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Detailed Description

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The objective of this project is to test whether consuming a whole food that naturally contains resistant starch (RS), such as pulses, increases fat oxidation. The primary hypothesis is that consuming a RS-rich meal in which the RS is derived from a whole food (i.e., pinto beans, pinto bean flour) will increase postprandial fat oxidation to a greater extent than consuming a meal low in RS but containing the same amount of energy and macronutrient content.

Conditions

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Overweight

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Whole cooked pinto bean meal

Participants will consume a meal comprised of 100 grams of whole cooked pinto beans

Group Type EXPERIMENTAL

Whole cooked pinto bean

Intervention Type OTHER

Meal comprised of whole cooked pinto beans

Pinto bean flour meal

Participants will consume a meal comprised of pinto bean flour equivalent to 100 grams of whole cooked pinto beans

Group Type EXPERIMENTAL

Pinto bean flour

Intervention Type OTHER

Meal comprised of pinto bean flour

Control meal

Participants will consume a control meal

Group Type ACTIVE_COMPARATOR

Control

Intervention Type OTHER

Control meal

Interventions

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Whole cooked pinto bean

Meal comprised of whole cooked pinto beans

Intervention Type OTHER

Pinto bean flour

Meal comprised of pinto bean flour

Intervention Type OTHER

Control

Control meal

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* BMI \>18.5 or \<30 kg/m2
* Ability to understand and sign the consent form
* Ability of transportation (i.e., participants must be able to provide their own transportation to the Grand Forks Human Nutrition Research Center)
* Non-smoking or use of other tobacco products, including e-cigarettes
* Not taking steroid-based medications; not planning to or currently attempting to gain or lose weight
* All females of childbearing age must be on birth control for a minimum of 3 months prior to start of study

Exclusion Criteria

* Inability or unwillingness to consume any food item in the test meals
* More than a 10% change in body weight within the past 2 months
* Participation in a weight loss diet/exercise program
* Current or planned pregnancy
* Lactation
* Uncontrolled hypertension (systolic \>160 mmHg or diastolic \>100 mmHg)
* Diagnosed cardiovascular, pulmonary, skeletal and metabolic diseases
* Fasting glucose \> 100 mg/dL or non-fasting (1-2 hours after eating) \>140 mg/dL
* Using medications known to affect appetite, blood lipids, body composition, body weight, or food intake (appetite control drugs, steroids, antidepressants)
* Non-English speaking

Minimum Eligible Age

19 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes