Impact of Crisp Hardness and Thickness on Eating Behaviour

ConditionSensory
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-50
SponsorPepsiCo Global R&D

About this trial

To analyse texturally altered crisp products that exhibit variations in hardness and thickness. The aim is to generate knowledge on how these properties influence eating behaviour (number of chews, rate of consumption, etc.), sensory and liking ratings in a fixed-portion laboratory setting. To assess whether reducing rate of consumption will maintain consumer acceptability,

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

18 to 50 years of age

Regular crisp consumer (e.g. at least two to three times a month or more)

Provide informed consent

Disqualifiers

Those who are on a restricted diet due to weight loss or maintenance purposes

Have abnormal eating speeds (tested via the carrot test)

Smoke or vape

Being pregnant or breastfeeding

Trial design

Design model

Crossover

Treatments tested in this trial

  • Snack food

    Other intervention

    Potato crisps, all with identical salted seasoning

Treatment groups

26 Participants
are divided into 5 treatment groups
Group A: Pilot Plant control crispExperimental treatment 1 intervention
Group B: Thin crispyExperimental treatment 1 intervention
Group C: Thin hardExperimental treatment 1 intervention
Group D: Thick crispyExperimental treatment 1 intervention
Group E: Thick hardExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Eating rate

Fixed-portion (tree crisps of each of five types) that vary in hardness and thickness.

Time frame
Day 1, during consumption of each fixed-portion product sample, from product entering the mouth to full consumption/swallow; approximately 1 minute per sample

Secondary outcomes

1

Participant responses to texture

Rating of perceived texture attributes (dryness, hardness, chewiness, flavour intensity, crunchiness, oiliness, aftertaste) using a 0-100 visual analogue scale, and overall liking) with written anchors tailored to the question. Higher scores reflect a greater subjective feeling of the variable being measured.

Time frame
Day 1, immediately after consumption of each fixed-portion product sample; approximately 1 minute per sample
2

Appetite: Hunger

Rating of hunger using a 0-100 visual analogue scale

Time frame
Day 1: Baseline (minute 0), before product consumption, and after completion of all product samples, approximately 15 minutes later
3

Appetite: Fullness

Rating of fullness using a 0-100 visual analogue scale

Time frame
Day 1: Baseline (minute 0), before product consumption, and after completion of all product samples, approximately 15 minutes later
4

Appetite: Desire to eat

Rating of desire to eat using a 0-100 visual analogue scale

Time frame
Day 1: Baseline (minute 0), before product consumption, and after completion of all product samples, approximately 15 minutes later

Other outcomes

1

Video recording of eating behavior

Oral processing variables such as eating rate (g/min), bite size (g/bite), and chews per bite

Time frame
Day 1, during consumption of each fixed-portion product sample; approximately 1 minute per sample

Sponsors and contacts

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