Potato Consumption and Energy Balance

Not Applicable

Completed

• Conditions: Obesity
• Interventions: Other: Almond; Other: White potato (french fries); Other: White potato (French fries), +seasoning

• Registration Number: NCT03518515
• Lead Sponsor: University of Alabama at Birmingham

Brief Summary

A randomized, clinical trial will be performed to assess changes in body weight and fat mass with daily potato consumption versus a calorie-matched snack of almonds.

Detailed Description

This is a 30-day randomized, controlled trial with 3 arms: 1) non-potato food (almonds), 2) standard white potato French fry, 3) standard white potato French fry with potential glycemia-modulating spice/seasoning mix added.

Free-living study participants will be assigned to consume one of the 3 foods (calorie matched) each day for a 30-day period. Body composition (via dual energy x-ray absorptiometry; DXA), and blood chemistry will be assayed at baseline and study completion, along with a sub-sample of subjects participating in a meal-based tolerance tests at study completion.

Study Timeline

• Study First Submitted: 2018-04-24
• Study First Submitted QC: 2018-05-06
• Study First Posted: 2018-05-08
• Study Start: 2018-08-02
• Primary Completion: 2020-03-18
• Study Completion: 2020-03-18
• Status Verified: 2020-05
• Last Update Submitted: 2020-05-07
• Last Update Posted: 2020-05-08

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 180

Inclusion Criteria

• 18- 50 years old
• Body mass index (BMI) 20- 35
• No dietary restrictions or allergies
• Weight stable
• Access to camera through smartphone, computer or tablet

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Exclusion Criteria

• Pregnancy or anticipating pregnancy or lactation
• Nut or food allergy
• Diagnosed diabetes (Type 1 or 2)
• History of weight control surgery (bariatric or liposuction)
• Consumes >1 serving of potatoes daily before enrollment
• Weight loss or gain >5% within past 6 months
• Medical conditions or medications that would prevent the ability to comply with treatment assignment and/or affect energy balance
• Dependence on others for food procurement or preparation

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Almond	Almond	Participants will be asked to consume 1 serving of almonds (calorie-matched to other arms) day for 30 days.
White potato (French fries)	White potato (french fries)	Participants will be asked to consume 1 serving of French fries each day for 30 days.
White potato (French fries), +seasoning	White potato (French fries), +seasoning	Participants will be asked to consume 1 serving of French fries with added seasoning each day for 30 days.

Primary Outcome Measures

Name	Time	Method
Change in fat mass	baseline and study completion (30 days)	Determined by dual-energy X-ray absorptiometry.

Secondary Outcome Measures

Name	Time	Method
Change in fasting insulin	baseline and study completion (30 day)
Meal Tolerance Test	Study Completion (30 day)	A subset of subjects from each diet group will participate in a meal-based tolerance test with the study food items.
Change in caloric Intake	baseline and study completion (30 days)	Dietary recall by 3 day food record.
Change in fasting glucose	baseline and study completion (30 day)
Change in body weight	baseline and study completion (30 day)
Change in HbA1c	baseline and study completion (30 day)

Trial Locations

Locations (1)

University of Alabama at Birmingham; 🇺🇸 Birmingham, Alabama, United States