Why Many Children with Autism Are Picky Eaters

A Complete Guide to Food Selectivity, Sensory Sensitivity, and Mealtimes for Parents in Nigeria

Table of Contents

1. Why Does My Autistic Child Only Eat Certain Foods?
2. What Is Food Selectivity in Autism? 
3. How Common Is Picky Eating in Autism?
4. Sensory Sensitivity to Food
5. A Need for Predictability and Routine
6. Difficulty with New Foods
7. Oral-Motor and Chewing Difficulties
8. Smell, Temperature, Colour, and Appearance
9. Medical Problems and Physical Discomfort
10. Communication Difficulties
11. Understanding the Difference Between Picky Eating and Food Selectivity
12. Common Signs of Food Selectivity in Autism
13. Why Nigerian Foods Can Be Challenging for Some Autistic Children
14. What NOT to Do When Your Child Refuses Food
15. What You Can Do at Home
16. Observe What Your Child Is Actually Rejecting
17. Start with Foods Your Child Already Accepts
18. Introduce New Foods Gradually
19. Do Not Force Your Child to Eat
20. Make Mealtimes Predictable
21. Consider Texture Before Taste
22. Seek Professional Support When Necessary
23. When Should You Seek Help?
24. For the Nigerian Home
25. You Are Doing Great As A Parent
26. In Conclusion

References

Introduction

“Ada, your son has not eaten the food again.” The voice came from the kitchen. “He only wants noodles. Yesterday, he ate noodles. This morning, noodles. Now he is crying because I gave him rice.” His mother sighed.

“Please, just eat the food,” she begged him. “Look at your cousins. Everybody is eating. You are the only one not eating.” The boy pushed the plate away. His mother tried again. “One spoon. Just one spoon.” He began to cry. A few minutes later, the entire house was tense.

To the people watching, it looked like a child being stubborn. To his mother, it felt like a daily battle. But what if the problem was not that he was being difficult? What if the texture of the rice felt unbearable? What if the smell of the stew made him nauseous? What if he was not refusing food because he wanted to frustrate his mother, but because his nervous system experienced that food very differently?

Many parents of autistic children know this struggle very well. Their child may eat only noodles, pap, yoghurt, white rice, bread, or a small number of other foods. They may reject foods they used to eat. They may refuse food because it has been cut differently, mixed with another food, changed in color, or served at a different temperature. And when this happens repeatedly, parents often hear:

“He is just being stubborn.”

“Stop giving him choices.”

“If he is hungry, he will eat.”

“Just force him.”

But picky eating in autism is often more complex than ordinary food preference.

Research shows that food selectivity is common among children with autism, with studies reporting a wide range of prevalence depending on the population and how food selectivity is measured. Sensory sensitivity to food texture and taste was a particularly important characteristic. (1)

This article explains why many children with autism are picky eaters, what may be happening beneath the food refusal, and what parents can begin doing to make mealtimes less stressful.

What Is Food Selectivity in Autism?

Food selectivity is more than simply saying, “I don't like this food.” It may involve:

• Eating only a very small number of foods
• Refusing entire food groups
• Accepting food only when prepared in a particular way
• Eating foods of only one texture or colour
• Refusing food when the brand, shape, packaging, or presentation changes
• Eating the same food repeatedly
• Refusing to try unfamiliar foods
• Gagging or becoming distressed when exposed to certain foods

A child may eat rice, but refuse rice mixed with stew. Another child may eat only smooth foods such as pap, custard, or yoghurt. Another may accept crunchy foods but reject anything soft or wet. Another may eat a particular brand of cereal but refuse the same food from another brand. This is why it is important to understand that food selectivity is not always about the taste of the food. The texture, smell, temperature, colour, appearance, and predictability of the food may all influence whether an autistic child accepts or rejects it. (2)

How Common Is Picky Eating in Autism?

Food selectivity is common among autistic children. A 2024 systematic review found food selectivity in approximately 21% to 76% of children and adolescents with autism, depending on the study and the definition used. Sensitivity to food texture and taste were particularly important characteristics. (1)

Research has also found that autistic children may refuse more foods and have a narrower food repertoire than children without autism. A limited food repertoire may increase the risk of inadequate intake of certain nutrients. (3)

However, it is important to remember that not every autistic child is a picky eater. Autism is a spectrum. Some autistic children eat a wide variety of foods. Others have extremely restricted diets. The reasons behind food selectivity can also be different from one child to another.

Why Are Many Children with Autism Picky Eaters?

There is no single reason why an autistic child may eat only a limited number of foods. Sensory differences, the need for predictability, difficulty with new foods, oral-motor challenges, medical discomfort, and communication difficulties can all play a role. If you would like to explore these causes in greater detail, read What Causes Picky Eating in Autism.

1. Sensory Sensitivity to Food

This is one of the most common reasons. For some autistic children, food does not simply taste different. It feels different. Food that feels completely normal to you may feel unpleasant, overwhelming, or even distressing to your child.

The texture may be too:

• Slimy
• Lumpy
• Grainy
• Sticky
• Wet
• Dry
• Chewy
• Crunchy
• Mixed

This may explain why a child accepts smooth foods like pap or custard but refuses foods with multiple textures. For example, a child may accept plain rice but reject rice mixed with stew because the texture is no longer predictable. Another child may eat a smooth soup but refuse a soup containing pieces of meat or vegetables.

This is not necessarily stubbornness. Sensory processing differences can influence how an autistic child experiences the texture, smell, taste, and appearance of food. Research has consistently identified altered sensory processing, particularly oral sensory sensitivity, as an important factor associated with food selectivity in autism. (4)

2. A Need for Predictability and Routine

Many autistic children feel more comfortable when they know what to expect.

This can apply to:

• Their daily routine
• Their clothing
• Their environment
• Their activities
• Their food

A familiar food is predictable.

Your child knows:

• What it will look like
• What it will smell like
• What it will feel like in the mouth
• How much chewing it requires
• What will happen after they swallow it

A new food brings uncertainty. For some children, that uncertainty can create anxiety. This is why a child may eat the same food every day and become distressed when a parent suddenly introduces something new. It is also why small changes can sometimes lead to refusal.

For example:

Your child may accept a particular type of bread but reject a different brand. They may eat noodles served in one particular way but refuse them when a new sauce is added. They may eat a particular cereal but reject it when the packaging changes. For the child, the issue may not be the food itself. It may be the unexpected change.

3. Difficulty with New Foods

Some children with autism experience significant difficulty accepting unfamiliar foods. This may be called food neophobia, which refers to reluctance or fear around trying new foods. However, it is important not to assume that every autistic child who refuses new food is simply “afraid” of it. The refusal may be connected to:

• Sensory sensitivity
• Anxiety
• A previous negative experience
• Difficulty with change
• A limited history of exposure to different foods

Research suggests that autistic children generally show greater food selectivity than neurotypical children, while atypical oral sensitivity appears to be particularly associated with eating difficulties. (5) A child who has eaten only smooth foods for years may not immediately accept a food with a completely different texture. This is why introducing new foods may need to happen gradually.

4. Oral-Motor and Chewing Difficulties

Some children have difficulty with the physical skills required for eating. They may struggle with:

• Chewing
• Moving food around the mouth
• Biting foods
• Managing different textures
• Swallowing certain consistencies

A child may therefore prefer foods that require less chewing. For example:

• Pap
• Custard
• Yoghurt
• Smooth purées
• Soft foods

This does not mean that every child who prefers soft food has an oral-motor difficulty. But if your child frequently coughs, gags, chokes, pockets food in the mouth, or struggles to chew, it is important to seek professional assessment. Feeding difficulties may have multiple causes, including medical, sensory, oral-motor, and behavioral factors. A proper assessment is therefore important before deciding what intervention a child needs. (2)

5. Smell, Temperature, Color, and Appearance

Sometimes, your child may reject food before tasting it. Why? Because of how it looks or smells. The food may:

• Have a strong smell
• Be too hot
• Be too cold
• Have an unfamiliar colour
• Be mixed together
• Be cut differently
• Look “messy” or unpredictable

For example, a child may accept plain white rice but reject it once it is covered with stew. Another child may accept a banana only when it is cut into a particular shape. Another may refuse food that has been reheated. These reactions can seem confusing until you understand that eating is a sensory experience. The brain receives information from the food before the food even enters the mouth.

6. Medical Problems and Physical Discomfort

Not every feeding problem is caused by sensory sensitivity. Sometimes, a child may refuse food because eating is physically uncomfortable. Nutritional deficiencies may also affect a child's wellbeing and functioning. If you are wondering whether low iron levels could be contributing to changes in your child's behavior, attention, energy, or concentration, you may also find this helpful: Can Iron Deficiency Affect Behavior and Attention in Autism? Possible contributors may include:

• Constipation
• Reflux
• Dental pain
• Food allergies or intolerances
• Gastrointestinal discomfort
• Difficulty swallowing
• Other medical conditions

If your child suddenly stops eating foods they previously accepted, it is important to consider whether something has changed physically. A sudden change in eating behavior should not automatically be labeled as “behavioral.” Sometimes, the child is communicating discomfort in the only way they can.

7. Communication Difficulties

Imagine feeling hungry, but being unable to clearly explain: “I want the food I ate yesterday.” “This food is too hot.” “I don’t like the texture.” “My stomach hurts.” “I am full.” “I am thirsty.”

For a child who has difficulty communicating, mealtimes can become frustrating. Sometimes, food refusal may be the child's way of communicating discomfort, preference, or distress. This is why it is important to look at the entire situation rather than simply asking: “Why is my child being difficult?” A more helpful question may be:

“What is my child trying to communicate through this refusal?”

Understanding the Difference Between Picky Eating and Food Selectivity

Many children are picky eaters at some point. A typically developing child may dislike vegetables but still eat a reasonably varied diet. An autistic child with significant food selectivity may:

• Eat fewer than 20 foods
• Refuse entire categories of food
• Eat only foods of a specific texture
• Become extremely distressed when preferred foods are unavailable
• Reject foods because of minor changes
• Have difficulty expanding their diet without structured support

The severity exists on a spectrum. Some children may have a limited but nutritionally adequate diet. Others may have a severely restricted diet that creates nutritional and health concerns. This is why it is important not to compare your child's eating habits with those of another child with autism. Every child has a unique sensory and feeding profile.

Common Signs of Food Selectivity in Autism

Your child may:

• Eat only a small number of foods
• Refuse food based on texture
• Refuse food based on colour
• Prefer foods that are always prepared the same way
• Eat only crunchy or only soft foods
• Reject foods that touch each other
• Become distressed when preferred food is unavailable
• Gag when exposed to certain textures or smells
• Refuse to try new foods
• Suddenly stop eating previously accepted foods
• Eat the same meal repeatedly
• Prefer packaged foods over home-cooked food
• Accept only specific brands
• Become distressed when the presentation of food changes

These signs do not automatically mean that your child has a feeding disorder. However, persistent or severe food selectivity deserves attention.

Why Nigerian Foods Can Be Challenging for Some Autistic Children

Nigerian food is wonderfully diverse. But many traditional meals contain multiple textures, strong smells, mixed ingredients, and complex sensory experiences. For a child with sensory sensitivity, this can sometimes be challenging.

Consider foods such as:

• Eba with egusi soup
• Amala with ewedu and stew
• Beans and plantain
• Rice mixed with stew
• Pounded yam with soup
• Jollof rice with vegetables and meat
• Moi moi with visible ingredients
• Soups containing meat, fish, vegetables, and seeds

A child may not simply be rejecting the meal. They may be reacting to:

• The texture of the swallow
• The smell of the soup
• The different textures mixed together
• The presence of bones
• The appearance of vegetables
• The temperature of the food

This does not mean that Nigerian food should be abandoned. It means that parents may need to understand how their child's sensory system responds to different meals. Sometimes, the same family meal can be modified in a way that makes it more manageable for the child.

What NOT to Do When Your Child Refuses Food

Do not force-feed your child. Force-feeding can increase fear and anxiety around mealtimes. It may also create a negative association with food. Do not shame your child. Avoid statements such as: “Look at your mates.” “You are behaving like a baby.” “You are wasting food.” “You are too difficult.” Shame does not teach a child to tolerate a new texture. Do not assume your child will simply eat when hungry. This advice may work for some children with ordinary food preferences. But a child with significant sensory or feeding difficulties may continue refusing food even when hungry. Do not remove every safe food suddenly. If your child has a very limited diet, suddenly removing all preferred foods may create significant distress and may reduce the amount of food the child is willing to eat. Do not assume every feeding problem is sensory. Medical, oral-motor, communication, anxiety, and behavioural factors can also contribute to food refusal. A proper assessment matters.

What You Can Do at Home

1. Observe What Your Child Is Actually Rejecting

Before trying to change your child's diet, observe carefully. Is your child rejecting:

• The taste?
• The smell?
• The texture?
• The temperature?
• The color?
• The way the food is presented?
• The fact that different foods are touching?

Keep a simple food diary for several days. Write down:

• What your child ate
• What your child refused
• How the food was prepared
• What the food looked and felt like
• What happened during the meal

Patterns may begin to emerge. Understanding your child's food preferences and sensitivities is an important first step, but nutrition also matters. For a practical, Nigeria-specific guide to supporting your autistic child's nutrition and gut health using familiar foods, read Feed Their Brain, Heal Their Gut: Autism Nutrition & Diet for Nigerian Families.

2. Start with Foods Your Child Already Accepts

If your child eats plain white rice, you may not need to immediately introduce completely unfamiliar food. You can begin with foods that share similarities.

For example:

If your child accepts plain rice, you might gradually explore other foods with similar textures. If your child accepts smooth foods, you may begin with another food that has a similar consistency. This is sometimes called using a “food bridge” - moving gradually from a preferred food to a new food that shares some familiar characteristics. The goal is not to force a dramatic change overnight.

3. Introduce New Foods Gradually

A new food does not have to go straight into your child's mouth. Your child may first need to:

• Look at the food
• Tolerate the food on the table
• Touch the food
• Smell the food
• Play with the food
• Bring it near the mouth
• Taste a small amount

For some children, simply tolerating a new food nearby is already progress. The process may take time. Progress should be measured in small steps.

4. Do Not Force Your Child to Eat

You can offer a new food without forcing your child to consume it.

For example:

“You don’t have to eat it now. It can stay on your plate.”

This can reduce pressure. At the same time, it is important to avoid making every meal a negotiation or allowing the child to eat only one preferred food indefinitely without seeking support when the diet is severely restricted. The goal is to create a calm and structured environment while gradually expanding food acceptance.

5. Make Mealtimes Predictable

A predictable mealtime routine can help reduce anxiety.

Try to keep:

• Regular meal times
• A consistent eating location
• Familiar plates and cups when helpful
• A predictable sequence of events

For example:

Wash hands → sit at the table → eat → clear the plate.

Visual schedules may also help some autistic children understand what to expect.

6. Consider Texture Before Taste

Many parents focus on taste. But for some autistic children, texture is the bigger issue. If your child accepts smooth food, introducing another smooth food may be easier than introducing a crunchy food. If your child accepts crunchy foods, another food with a similar crunch may be a more reasonable starting point. You may also need to modify food textures gradually. However, if your child has significant gagging, choking, or swallowing difficulty, seek professional assessment rather than attempting to manage the problem alone.

7. Seek Professional Support When Necessary

If your child's diet is severely restricted, professional support may be necessary. Depending on the child's needs, this may include:

• A paediatrician
• A developmental pediatrician
• A registered dietitian or nutritionist
• An occupational therapist
• A speech and language therapist with feeding expertise
• A psychologist or behavioral specialist trained in feeding difficulties

Food selectivity may have multiple causes, so a multidisciplinary assessment can sometimes be helpful. Evidence-based interventions may include sensory, behavioral, nutritional, and parent-mediated approaches depending on the child's specific needs. (2)

When Should You Seek Help?

Speak with a healthcare professional if your child:

• Eats an extremely limited number of foods
• Is losing weight
• Is not growing as expected
• Has persistent constipation or other gastrointestinal symptoms
• Frequently gags, coughs, or chokes while eating
• Has significant nutritional deficiencies
• Becomes extremely distressed around food
• Has stopped eating previously accepted foods
• Has a diet that is becoming increasingly restricted
• Has difficulty chewing or swallowing

Severe food restriction can have consequences for nutrition, growth, and health. Some autistic children may also have eating patterns that resemble avoidant/restrictive food intake disorder, particularly when food restriction is driven by sensory sensitivity, low interest in eating, or fear of aversive consequences. (6)

For the Nigerian Home

Many Nigerian parents are raising children in extended family systems. This can make feeding challenges even more difficult. A grandmother may say: “When he is hungry, he will eat.” An aunt may say: “You are spoiling this child.” A relative may insist: “Just force the food into his mouth.” But your child's feeding difficulty may not be a parenting failure. It may not be because you are too permissive. It may not be because you have spoiled your child. And it may not be because your child is deliberately trying to frustrate you.

Food selectivity in autism can be influenced by sensory processing differences, medical factors, oral-motor difficulties, anxiety, communication challenges, and the need for predictability. This is why understanding the child matters. The goal is not to win a battle at the dining table. The goal is to understand why the child is struggling and help them develop a healthier, safer, and more flexible relationship with food.

You Are Doing Great As A Parent

Feeding a child with autism can be exhausting. You may spend hours preparing food that your child refuses after one look. You may worry about nutrition. You may feel embarrassed when your child refuses food at a family gathering. You may feel frustrated when the only food your child wants is the same food they ate yesterday. And you may sometimes wonder: “What am I doing wrong?” The answer may be: nothing. Your child may simply need a different kind of support. Your child's food refusal does not mean you are a bad parent. Your child's limited diet does not mean you have failed. You do not have to solve everything in one meal. Start by observing. Learn your child's patterns. Reduce unnecessary pressure. Seek professional help when you need it. And remember that progress may sometimes look very small. A child who previously could not tolerate a new food on the table may eventually tolerate it beside their preferred food.

A child who previously refused to touch a new food may eventually touch it. A child who previously gagged at a texture may eventually tolerate it. These small steps matter.

In Conclusion

• Picky eating and food selectivity are common among children with autism, although the severity differs from child to child.
• Sensory sensitivity to texture, taste, smell, temperature, colour, and appearance can influence food acceptance.
• A need for predictability and difficulty with change can make new foods particularly challenging.
• Oral-motor difficulties, medical problems, gastrointestinal discomfort, anxiety, and communication difficulties may also contribute to food refusal.
• Food selectivity is not always about taste and should not automatically be interpreted as stubbornness or deliberate defiance.
• Nigerian foods can present complex sensory experiences because many meals combine multiple textures, smells, and ingredients.
• Forcing, shaming, and suddenly removing all preferred foods can make mealtimes more stressful.
• Gradual exposure, predictable routines, careful observation, and appropriate professional support can help.
• Severe food restriction, nutritional concerns, weight loss, growth concerns, choking, gagging, or swallowing difficulties require professional attention.
• You are not failing your child. Understanding the reason behind the eating difficulty is the first step toward helping your child.

References

1. Mørdre M, Ørbeck B, Hoel RE, Øvergaard KR. Food selectivity in children and adolescents with autism spectrum disorders - a systematic literature review. Tidsskr Nor Laegeforen. 2024;144(14). doi:10.4045/tidsskr.24.0193.
2. Esposito M, Mirizzi P, Fadda R, et al. Food Selectivity in Children with Autism: Guidelines for Assessment and Clinical Interventions. International Journal of Environmental Research and Public Health. 2023;20(6):5092. doi:10.3390/ijerph20065092.
3. Bandini LG, Anderson SE, Curtin C, et al. Food selectivity in children with autism spectrum disorders and typically developing children. The Journal of Pediatrics. 2010;157(2):259–264.
4. Sharp WG, Jaquess DL, Morton JF, Miles AG. A retrospective chart review of dietary diversity and feeding behavior of children with autism spectrum disorder before and after admission to a day-treatment program. Focus on Autism and Other Developmental Disabilities. 2011;26(1):22–31.
5. Dovey TM, Staples PA, Gibson EL, Halford JCG. Food neophobia and “picky/fussy” eating in children: A review. Appetite. 2008;50(2–3):181–193.
6. Kambanis PE, et al. Avoidant/restrictive food intake disorder and severe food selectivity in children and young people with autism: A scoping review. Developmental Medicine & Child Neurology. 2022.

Article reviewed by Dr. Paschaline