Why Isn’t My Child Gaining Weight? What a Feeding Therapist Looks for in Infancy and Early Childhood

If you’re worried that your baby or young child isn’t gaining weight as expected, you’re not alone — and you’re not doing anything wrong. Concerns about growth are common during infancy and early childhood, especially during transitions like starting solids, weaning from bottles, or navigating picky eating.
The early years are a critical time for growth and development. When weight gain slows or feeding feels stressful, it’s often a sign that a child may need additional support — not that a parent has failed.
At Expansion Speech Therapy, our feeding therapists take a whole-child, family-centered approach to understanding feeding challenges. We look beyond just how much a child is eating. We explore how feeding is functioning, why challenges may be occurring, and how to support safe, confident eating as children grow.
Here’s what we typically evaluate:
1. Medical and Developmental History
We begin by understanding your child’s unique story. This may include:
- Birth history (prematurity, NICU stay, medical complications)
- Medical conditions such as reflux, food allergies, respiratory concerns, or gastrointestinal issues
- Developmental milestones (oral motor skills, sitting, self-feeding)
- Feeding history — breastfeeding, bottle feeding, puree introduction, table foods
- Growth trends and concerns raised by parents or pediatricians
In infancy and early childhood, feeding and development are closely connected. Even subtle medical or developmental differences can impact intake and growth.
2. Observation of Feeding Skills
Whenever possible, we observe your child eating. This allows us to see feeding in action and identify strengths and challenges.
We look at:
- Sucking, swallowing, and breathing coordination (for infants)
- Transition skills from puree to textured foods
- Chewing patterns and efficiency
- Self-feeding abilities in toddlers
- Endurance — Does your child tire quickly?
- Overall engagement — Calm, curious, avoidant, fatigued?
Feeding is a complex motor task, and small breakdowns can affect how much a child consumes.
3. Oral-Motor Development
Strong, coordinated oral muscles are essential for safe and efficient feeding.
We assess:
- Tongue, lip, and jaw strength and coordination
- Chewing development and lateral tongue movement
- Ability to manage increasing textures
- Signs of fatigue or low muscle tone
In early childhood, delayed oral-motor progression can sometimes contribute to limited diet variety or reduced volume intake.
4. Sensory Processing and Food Acceptance
As children move into toddlerhood, sensory processing plays a bigger role in feeding.
We explore:
- Reactions to textures, temperatures, smells, and flavors
- Food refusal patterns
- Gagging or avoidance behaviors
- Difficulty transitioning between food groups
Some children limit intake not because they don’t want to grow — but because certain foods feel overwhelming or uncomfortable.
5. Mealtime Structure and Energy Balance
Growth depends on both caloric intake and energy use.
We consider:
- Frequency and duration of meals and snacks
- Grazing versus structured mealtimes
- Calorie density of accepted foods
- Medical factors that may increase calorie expenditure
- The overall feeding environment
For toddlers especially, small environmental adjustments can significantly improve intake.
6. The Feeding Relationship
Feeding is deeply relational — especially in infancy and early childhood. We approach this area with compassion and without blame.
We gently explore:
- How your child communicates hunger, fullness, and stress cues
- How mealtimes feel for you as a caregiver
- Patterns that may unintentionally increase pressure or anxiety
- Ways to support more positive, responsive feeding interactions
Our goal is to reduce stress, build confidence, and create a mealtime experience that feels supportive for both child and caregiver.

What Happens Next?
If we identify areas where support would help, we develop an individualized plan that may include:
- Ongoing feeding therapy
- Collaboration with your pediatrician or other specialists
- Practical home strategies tailored to your child’s developmental stage
- Support for expanding diet variety and improving intake
Slow weight gain in infancy or early childhood doesn’t mean something is “wrong.” It often means your child needs targeted support during an important developmental window.
At Expansion Speech Therapy, we help families uncover the “why” behind feeding challenges and move forward with clarity, confidence, and a plan.
If you’re concerned about your child’s feeding or growth, contact us today or fill out our inquiry form to schedule a feeding evaluation. Early support can make a meaningful difference — and you don’t have to navigate it alone.
