Bierman Autism Centers

PEBBL Clinical Research

Assent-Based Feeding in ABA

From “No Thanks” to New Foods

Food selectivity is common in autism, and it can turn mealtimes into stress times. This short case story shows how our team used an assent-based, stepwise approach to help one learner expand their menu. It’s one example. It’s also a model we’re working to replicate because families ask about this every day.

The heart of the approach

  • Assent matters. We watch for the child’s “yes/no” signals and pace to comfort.
  • Small steps, big wins. We break “new food” into tiny targets: look, touch, smell, kiss, lick, micro-bites, small bites, typical bites.
  • Active choice. We keep preferred foods and fun activities near the table.
  • Short, frequent practice. Many small, successful reps build momentum.
  • Clear data. Simple targets make progress visible to families and staff.

The short case story

At the start, our learner had a very limited menu and said ‘no thanks’ to new textures. We set a stepwise ladder and let the child help choose which targets to try first. Sessions were brief, upbeat, and included plenty of breaks.

 

What changed: Over about ten months, the learner met targets across multiple foods and eventually added seven new foods to their regular menu. Mealtimes became calmer, and parents reported less stress around grocery shopping and school lunches.”

 

This is a single-case example. We replicate successful approaches across centers to understand when and for whom they work best.

Food Acceptance Progression Over Time

This chart tracks the cumulative number of new foods a learner accepted over a ten-month period using an assent-based, stepwise feeding approach. Each increase represents a newly accepted food following gradual, child-led steps designed to build comfort and participation. The pattern shows how progress can accumulate steadily when pace respects the learner’s assent.

What families tell us they value

  • Less pressure, more progress. Children stay engaged when they have choice and momentum.
  • Visibility. Parents can see micro-steps that add up to a big change.
  • Carryover. Simple targets make home practice doable.

What clinicians track

  • Assent signals and session pacing
  • Step completion by food and texture
  • Generalization to home and school settings
  • Family stress markers (brief check-ins can be powerful)

Guardrails we keep front and center

  • We do not force food trials. We shape, we pair, and we honor assent.
  • We personalize steps by sensory profile and medical guidance.
  • We talk about examples, not guarantees. Every child’s path is unique.

FAQ: Assent-Based Feeding

What do you mean by “assent-based”?

We tune in to the child’s “yes/no” signals and pace to comfort. The goal is participation with buy-in, not compliance. 

 

How does progress actually happen?

We break “try a new food” into tiny, doable steps—look, touch, smell, kiss, lick, micro-bites, small bites, typical bites—so momentum can build. 

 

What does a session look like?

Short, upbeat practice with plenty of breaks and choices. Preferred foods or activities stay nearby to keep things positive. 

 

Do you force food trials?

No. We shape, we pair, and we honor assent. Comfort and safety come first. 

 

How long does change take?

It varies. In one case, a learner added seven new foods over ~10 months with a stepwise plan. That’s a single example; we’re working to replicate and learn who benefits most. 

 

How do you track progress?

Clear, simple targets show which steps a child has mastered by food and texture. Families can see micro-wins adding up. 

 

Will this carry over at home or school?

That’s the goal. We watch for generalization and share simple ways to practice, so gains stick beyond session time. 

 

Is this a guarantee?

No. Every child’s path is unique. We share examples to illustrate the approach, not to promise specific outcomes. 

 

How do you adapt for sensory or medical needs?

Steps and targets are personalized by sensory profile and medical guidance for safe, respectful progress. 

 

Where can I learn more or get started?

Families: connect with our Intake Team. Clinicians: explore research-friendly roles and mentorship through PEBBL.

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