Menu
Recruiting NCT07230951

Interaction Between White Potato Consumption and Meal Timing on Glycemic Response and Appetite in Adults

No phase Interventional Healthy Adult Appetite Glycemic Response

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Oven-baked Home Fries, Oven-baked White Russet Potato, Oven-baked Fries, Deep Fried, Quick Serve Fries.
Who it may be relevant to
Registry conditions: Healthy, Adult, Appetite, Glycemic Response. Basic parameters: 18 years — 65 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
Canada
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

Unsure about the terms? Read our patient guide →

Official title

Interaction Between White Potato Consumption and Meal Timing on Glycemic Response, Subjective Appetite, and Energy Intake in Adults.

Overview

The purpose of this study is to evaluate the interaction between white potato consumption and meal timing on glycemic response, subjective appetite, and energy intake in adults. The investigators hypothesize that white potatoes will modulate glycemic response, enhance satiety, and mitigate subsequent meal consumption and overall food intake when compared with meals containing low glycemic carbohydrates. Furthermore, they anticipate that the timing of white potato consumption will yield differential effects, with breakfast consumption exerting a more pronounced impact on satiety and subsequent food intake reduction compared to dinner consumption.

Detailed description

A randomized within-subject repeated measures experiment will be used to study the interaction between white potato consumption and meal timing on glycemic response, subjective appetite, and energy intake in adults. In Experiment 1, participants will consume, in a random order on separate mornings, one of six test meals consisting of an egg omelette and a test side of: (1) Oven-baked home fries, (2) Oven-baked white russet potatoes, (3) Deep-fried, quick serve fries, (4) Oven-baked fries, (5) Oven-baked cauliflower tots, or (6) no side. Acute glycemic response and subjective appetite will be measured at baseline and over 120-mins post treatment consumption. At 120-min, food intake will be evaluated via an ad libitum lunch. Rest of day food intake and glycemic response will be collected until the participant goes to bed. Blood glucose measurements will be collected using the Dexcom G7 continuous glucose monitoring system.

Interventions

  • Other Oven-baked Home Fries
    Oven-baked Home Fries (241 g; McCain Ltd.). Test treatments matched for calories (284 kcal)
  • Other Oven-baked White Russet Potato
    Oven-baked White Russet Potato (299 g). Test treatments matched for calories (284 kcal)
  • Other Oven-baked Fries
    Oven-baked Fries (201 g; McCain Ltd.). Test treatments matched for calories (284 kcal)
  • Other Deep Fried, Quick Serve Fries
    Deep Fried, Quick Serve Fries (108 g; McCain Ltd.). Test treatments matched for calories (284 kcal)
  • Other Oven-baked Cauliflower Veggie Tots
    Oven-baked Cauliflower Veggie Tots (186 g; Green Giant). Test treatments matched for calories (284 kcal)
  • Other No Side
    No side control (no caloric contribution).

Primary outcome measures

  • Glycemic Response (Acute Phase) [Time frame: Change from baseline (measured at baseline (0-minute), 15-minute, 30-minute, 60-minute, 90-minute, and 120-minute post-treatment consumption).]
  • Rest-of-day Blood Glucose [Time frame: Continuous measurements for 24 hours post-treatment consumption.]
  • Ad Libitum Food Intake [Time frame: At 120 minutes post-treatment consumption]
Secondary outcome measures (3)
  • Subjective Appetite [Time frame: Change from baseline (measured at baseline (0-minute), 15-minute, 30-minute, 60-minute, 90-minute, and 120-minute post-treatment consumption).]
  • Rest-of-day Food Intake [Time frame: For the rest of the day following test session completion (1 day)]
  • Subjective Emotions [Time frame: Change from baseline (measured at baseline (0-minute), 15-minute, 30-minute, 60-minute, 90-minute, and 120-minute post-treatment consumption).]

Eligibility criteria

Inclusion criteria

  • 18 - 65 years
  • within the healthy body weight range \[body mass index (BMI) between 18.5 - 24.9 kg/m2\].

Exclusion criteria

  • have a previous diagnosis of diabetes and gastrointestinal, liver or kidney disease;
  • have had a major medical or surgical event within the past 6 months;
  • have had any significant weight fluctuation in the past 6-months;
  • are taking medication that may influence dependent measures;
  • are or have been on a diet within the past 6 months;
  • skip breakfast or are unable to consume test treatment food.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Allocation
Randomized
Model
Crossover
Masking
Open label
Primary purpose
Prevention

Study locations

Canada · 1 center
  • Centre for Urban Innovation (CUI-109), School of Nutrition, Toronto Metropolitan Universit — Toronto

Identifiers

NCT: NCT07230951 · REB: 25-172 [A]

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗