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OpenTrials
Completed

NCT Number: NCT06691958

Impact of Chip Thickness and Size on Eating Responses

To analyze prototypes developed with the base and seasonings of products that exhibit variations in chip thickness and size. The information obtained from this analysis will serve as the basis for subsequent research to explore different prototype options with increased satiation properties.

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Key information

Conditions

Consumer Behavior Behavior Consumer Preference Consumer Satisfaction Personal Satisfaction

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Nottingham Sensory Science Centre

Sutton Bonington, Leicestershire, LE12 5RD, United Kingdom

About this study

There are two study components, a sensory study and an ad libitum study. Eighty-eight participants will test tortilla chips and eighty-eight will test extruded chips in the sensory study. On a first-come first-served basis, forty-four of the eighty-eight chip participants from the sensory testing phase will test tortilla chips, and forty-four of the eighty-eight extruded chip participants will test extruded chips in the ad libitum study.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Report eating tortilla and/or extruded chips regularly, non-rejector of cheese flavor chips
  • Provide informed consent
  • Speak and understand English without difficulty
  • Willing to eat similar food the day prior and on the day of each visit to the testing facility for ad libitum sessions
  • Describe yourself as generally healthy

Exclusion criteria

  • Those who are on restricted diet due to a weight loss or maintenance purpose
  • Participants with class III occlusions for ad libitum sessions
  • Have abnormal taste, chewing and smell ability
  • Smoke or vape
  • Being pregnant or breastfeeding
  • Allergic or intolerance to any of the product ingredients (section 6), especially milk and wheat
  • Participation in a sensory clinical trial within past 7 days (we do not expect carryover issue from the taste testing)
  • Participation in any PepsiCo trial within past 6 months

Treatment and study plan

Tortilla corn chips 4-5 pieces, eat one piece at time

Other

Snack

Tortilla corn chips 90 grams

Other

Snack

Extruded corn chips 90 grams

Other

Snack

Extruded corn chips 4-5 pieces, eat one piece at time

Other

Snack

Primary outcomes

  1. Satiation: Intake in grams

    Time frame: Total grams consumed at each 30-minute ad libitum testing session from beginning of eating until end of eating on separate days, two test visits for tortilla chips arm and three test visits for extruded chips arm.

    gram weight of consumption

  2. Satiation: Nutrition

    Time frame: Total calories consumed at each 30-minute ad libitum testing session from beginning of eating until end of eating on separate days, two test visits for tortilla chips arm and three test visits for extruded chips arm.

    Intake in calories

  3. Duration of eating

    Time frame: Timed from beginning of eating until end of eating at each 30-minute ad libitum testing sessions on separate days, two test visits for tortilla chips arm and three test visits for extruded chips arm.

    In minutes

  4. Rate of consumption

    Time frame: Measured in grams per minute at each 30-minute ad libitum testing session from beginning of eating until end of eating, on separate days, two test visits for tortilla chips arm and three test visits for extruded chips arm.

    Speed of eating in minutes

  5. Consumer response: Liking

    Time frame: At end of eating each product at the one 45-minute sensory session, and at end of each 30-minute ad libitum session on separate days, two visits for the tortilla chips arm and three visits for the extruded chips arm. Higher score is the better outcome.

    9-point hedonic scale from extremely dislike to extremely like

  6. Consumer response: Satisfaction

    Time frame: At end of eating each product at the one 45-minute sensory session and at end of each ad libitum session on separate days, two visits for tortilla chips arm and three visits for the extruded chips arm. Higher satisfaction is a better outcome.

    9-point hedonic scale from extremely dissatisfied to extremely satisfied

  7. Perceived sensory properties (TCATA)

    Time frame: Over a period of 60 seconds for each product at the one 45-minute sensory session and at each ad libitum session on separate days, two visits for tortilla chips arm and three visits for the extruded chips arm.

    Using Temporal CATA (TCATA) choose all that apply from list of crunchy, hard, tooth clogging, loose particles, soft, airy melting

  8. Perceived sensory properties (CATA)

    Time frame: Check all that apply for each product while sampling them at the one 45-minute sensory session. A favorable rating would be a better outcome.

    CATA

  9. Emotional responses using CATA

    Time frame: Check all that apply for each product while sampling them at the one 45-minute sensory session. Positive ratings would be a better outcome than negative..

    Essence 25 using CATA

  10. Hunger and Fullness and how much could you eat right now

    Time frame: Before eating and right after eating as much as they want to eat at each 30-minute ad libitum session on separate days, two visits for tortilla chips arm and three visits for the extruded chips arm.

    Using a 3 item Visual Analog Scale (VAS) to mark along 100 mm line the level of hunger and fullness from not at all to totally full

Sponsors and collaborators

Lead sponsor

PepsiCo Global R&D

Industry

Registry information

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Nov 18, 2024
Registry last updated
May 7, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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