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Master's thesis · IAE Poitiers (CEPE) · 2026

Nutri-Score and snacks for 3-6 year olds: what parents actually do in the aisle

A qualitative study with 13 parents. Everyone knows the Nutri-Score, yet it carries little weight at the moment of choice. Five competing forces explain why.

01Context

The Nutri-Score has been displayed in France since 2017 and awareness is very high. Yet most packaged children's snacks are rated C, D or E, and little is known about how much the label really weighs when a parent shops for a child aged 3 to 6, an age when food preferences take shape.

02Challenge

How do parents trade off the Nutri-Score, price, their children's requests and their own values in the snack aisle? And what place does the label really hold in the final decision?

03My role

I carried out the whole study: framing, literature review, interview guide design, recruitment, conducting and transcribing interviews, analysis and writing.

04Approach

  • Literature review on nutrition labelling, consumer decision-making and children's food socialisation.
  • Five exploratory working hypotheses.
  • Diversified sample of 13 parents of children aged 3 to 6 in France (income, purchase frequency, family context).
  • Semi-structured guide piloted on two preliminary interviews, then refined during fieldwork.
  • Phone interviews conducted between January and July 2025, fully transcribed.
  • Inductive thematic coding, then a typology and a decision model.

05Deliverables

  • A research thesis of about 70 pages.
  • A typology of 5 parent profiles.
  • A 7-step model of decisions in the snack aisle.
  • An influence matrix of 6 factors by profile.
  • Recommendations for brands, retailers and public health actors.

06Results

  • Every parent knows the Nutri-Score, but the gap between stated support and real influence on purchases is systematic.
  • The label often works less as a buying guide than as a marker of "good parenting" and a way to ease guilt.
  • Five forces compete with it: the child's wishes, price, cultural cues (organic, natural, homemade), mental load and family values.
  • The child is a real co-decision-maker, even when not in the store. Snack time is also a moment of family peace.
  • For brands: target both audiences (nutritional quality for parents, enjoyment for children), reformulate transparently, and speak to the relational side of snack time.
  • Thesis defended in June 2026.

Five parent profiles

An analytical grid, not a statistical segmentation.

  • The nutrition strategist

    Plans and optimises. The Nutri-Score is a central tool among others.

  • The contextual pragmatist

    Adapts criteria to the situation. The most common profile.

  • The emotional peacekeeper

    Puts family peace first. The label stays symbolic.

  • The culturally anchored

    Heritage and values first: organic, homemade. The label is marginal.

  • The budget-constrained

    Price decides. The label informs but cannot steer.

Influence matrix by profile

Weight of each factor in the decision, from 0 (none) to 4 (decisive).

Influence matrix by profile
ProfilNutri-ScorePriceChild's wishesCultural valuesMental fatigueVisual marketing
Nutrition strategist411200
Contextual pragmatist222222
Emotional peacekeeper114133
Culturally anchored122411
Budget-constrained043132

Source: thesis, table 5.

The 7 steps of the snack-aisle decision

An analytical model. In real life, steps can overlap or be skipped.

  1. 1

    Initial intention

    Wanting to do the right thing, a shopping list, established principles.

  2. 2

    Facing the shelf

    Too many options, promotions, visual overload. The intention weakens.

  3. 3

    Non-nutritional cues

    Packaging, licensed characters, colours, multibuy offers, before the score is even read.

  4. 4

    The child steps in

    Real or anticipated. The decision becomes relational.

  5. 5

    Cognitive shortcut

    Picking whatever settles the situation: fatigue, limited time.

  6. 6

    Final trade-off

    The dominant criterion wins: health, family peace, price, values or habit.

  7. 7

    Post-purchase rationalisation

    "I'll make up for it tonight by cooking vegetables."

Documents

Full thesis (in French)

Literature review, methodology, findings, typology, recommendations.

PDF · 70 pages · 1.9 MB

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