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Mealtimes are often seen as a time for families and friends to come together, share conversation, and strengthen social bonds over food. 

However, for some individuals, eating can present unexpected challenges that set them apart from others at the table. 

One curious behavior that has generated interest from researchers is humming or vocalizing while eating. 

While making noises during meals may seem harmless for most, for some it could potentially be an indicator of autism spectrum disorder (ASD).

In this article, we’ll explore the possible link between humming while eating and autism, and discuss what other signs and symptoms might indicate autism.

By looking at available research, we hope to provide clarity on whether this behavior holds any significance in identifying individuals on the autism spectrum. 

But first, let’s understand what autism is.

What is Autism Spectrum Disorder?

Autism Spectrum Disorder (ASD) refers to a broad range of conditions characterized by challenges with social skills, repetitive behaviors, speech, and nonverbal communication. 

The term “spectrum” reflects the wide variation in symptoms and severity between individuals on the autism spectrum.

Some key traits include difficulties with social-emotional reciprocity, such as abnormal social approach, failure of normal back-and-forth conversation, and reduced sharing of interests, emotions, or affect. 

People with ASD may have difficulty picking up on social cues through facial expressions, tone of voice, and body language.

Sensory sensitivities are also common in individuals with ASD, with heightened or diminished responses to sensory stimuli like lights, sounds, textures, and tastes. 

They may focus intensely on specific interests and become distressed by small changes in routine.

These sensitivities can significantly impact daily functioning and contribute to unique behaviors, such as the focus of our exploration—humming during meals.

Many individuals with ASD also experience difficulties with verbal and nonverbal communication. 

This can include challenges with back-and-forth conversation, interpreting both verbal and nonverbal language, as well as reduced sharing of interests or emotions. 

Some individuals may have limited or no verbal communication at all.

The symptoms of ASD can range from very mild to severe depending on factors like cognitive ability and language skills. 

ASD can be diagnosed by a qualified professional, such as a psychologist or psychiatrist, through a combination of behavioral observations, medical history, and developmental assessments. 

Early intervention can help improve communication, minimize challenging behaviors, and foster independence. 

While there is no known cure, treatment aims to help individuals reach their highest potential.

Early Signs of Autism

Image Credit: brainwave.watch

Early signs of autism can be subtle and may not always be immediately apparent. 

In some cases, the first signs of autism may be noticeable in infancy, while in others, they may not become apparent until later in childhood. 

Some early signs of autism may include:

1. Delayed or absent language development: 

Children with autism may not babble or make cooing sounds as infants, and may not begin speaking until later than usual. 

They may also have difficulty with verbal communication, such as difficulty articulating words or understanding the nuances of language.

2. Difficulty with social interactions: 

Children with autism may have difficulty making friends or interacting with others, and may not understand social cues or norms. 

They may also have difficulty with eye contact, facial expressions, and body language.

3. Repetitive behaviors: 

Children with autism may exhibit repetitive behaviors, such as hand flapping, head banging, or obsessive interests. 

They may also have difficulty changing their routines or adapting to new situations.

4. Sensory sensitivities: 

Children with autism may have difficulty processing sensory information, such as light, sound, or touch. 

They may be over- or under-sensitive to certain stimuli and may exhibit behaviors such as avoiding eye contact or covering their ears.

5. Delayed or absent developmental milestones: 

Children with autism may not meet developmental milestones at the same rate as their peers. 

For example, they may not sit up, crawl, or walk as early as other children.

6. Unusual or rigid interests: 

Children with autism may have intense and highly focused interests, such as a fascination with trains or a fixation on a particular object. 

They may also have difficulty changing their interests or engaging in activities that are not related to their interests.

It is important to note that not all children with autism will exhibit all of these signs, and some may have different signs altogether. 

The Phenomenon of Humming While Eating

The specific behavior of humming or vocalizing while eating has gained interest from researchers studying autism spectrum disorder. 

Anecdotally, parents of children with ASD have long reported this unusual dining trait. But what exactly does this phenomenon entail?

Humming during meals typically involves low, ongoing sounds made either while chewing food or briefly pausing eating. 

The vocalizations tend to be nonverbal, without clear articulation of words or songs. Some describe it as a soft, repetitive hum.

The noises made can vary in volume and tone between individuals. For some, it may seem more like subconscious murmuring than intentional singing. 

Facial expressions often remain neutral without much change when the vocalizing occurs.

So, back to the question at hand: Is humming while eating a sign of autism? Let’s see what scientific research has to say.

Is Humming while Eating a Sign of Autism?

Research has consistently shown that feeding problems and mealtime behavioral issues are much more prevalent in children and adolescents with autism compared to their typically developing peers. 

Studies report that between 51% to 89% of youth with ASD experience some type of behavioral problems during meal times. These types of issues are also seen in the general pediatric population but occur at a far higher rate for those on the autism spectrum. 

Mealtimes can therefore be a challenging daily struggle for many individuals with ASD and their families.

Several studies have found that humming while eating is significantly more prevalent among individuals with autism compared to neurotypical controls.

Individuals with autism frequently rely on repetitive behaviors as a way to self-regulate their sensory processing. 

Humming, like plugging one’s ears or tapping body parts, may serve this compensatory purpose for some – helping modulate auditory or other sensory inputs. 

When assessing for autism, the presence of humming would need to be considered within the broader clinical picture. 

Isolated humming during mealtime does not confirm an ASD diagnosis. 

However, if combined with other challenges like selective eating patterns or difficulties managing sensory overload, it could represent a regulatory strategy for someone on the spectrum. 

Why Might People with Autism Hum While Eating?

Individuals with autism sometimes struggle to understand social norms and conventions related to mealtimes. 

Humming or making loud noises when eating goes against typical social behaviors, but someone on the autism spectrum may not realize this due to difficulties reading implicit social cues. 

For those with autism, self-stimulatory or repetitive behaviors can serve an important sensory function. 

Stimming provides predictive sensory input that helps the person cope with anxiety, focus attention, or express feelings in a controlled way. 

Humming while eating may be calming or help filter out distracting chewing sounds for someone who is overly sensitive to noise. 

According to a study, one person with autism described humming when eating chips to “block out audio input from the crunching.” 

In busy, overwhelming environments like restaurants, stimming helps ignore external stimuli. 

Experts equate it to relaxing activities neurotypical individuals enjoy, like playing music or sports.

Humming during meals commonly arises in those with less advanced language and social abilities. 

For a child struggling to communicate, murmuring provides sensory satisfaction and reduces stress around dining. 

While challenging to curb, understanding its purpose can help support appropriate mealtime behaviors and experiences for individuals on the autism spectrum.

How Can Humming While Eating Be Managed?

managing autism
Image Credit: brainwave.watch

For individuals who exhibit humming or vocalizing during meals, there are a few strategies that parents and caregivers can try to help make the behavior less disruptive or bothersome. 

One approach is to remain calm and avoid bringing unnecessary attention to the noises, as this type of reaction could potentially reinforce and exaggerate the behavior. 

Gently redirecting the child’s focus back to their food through simple prompts like “It’s time to eat now” can help in some cases. 

Communication devices may also assist nonverbal individuals in expressing themselves without vocal stims. 

Distracting with pleasant background music or minimizing external stimuli in the dining environment have shown some success as well according to anecdotal reports.

With patience and positive reinforcement over time, mealtime routines can become less anxious through consistent boundaries, social cues modeling, and, if necessary, occupational or speech therapy incorporating visualization or oral motor exercises. 

The goal should always be compassionate support of neurological differences rather than attempting to wholly suppress harmless stims. 

With understanding and adaptation, dining can remain an enjoyable social activity for individuals on the spectrum.

When To Seek Professional Help?

While humming during meals on its own may not necessarily require clinical intervention, some signs would indicate getting an evaluation from a medical professional:

  • If the behavior is excessive or disruptive to the point that it seriously impacts the individual’s eating or mealtime routine. Loud or aggressive vocalizations could signal deeper issues.
  • The noises persist to an unusual degree beyond childhood and into teenage/adulthood years without improving over time.
  • It forms part of a pattern of restrictive/repetitive behaviors that may be interfering with functioning or learning.
  • There are accompanying signs of other underlying challenges such as feeding difficulties, food selectivity, digestive issues, or anxiety around mealtimes.
  • Managing the behavior through home strategies proves consistently ineffective over several weeks.
  • The individual expresses significant distress over attempts to reduce the vocalizing.

In such cases, an evaluation by a speech therapist, occupational therapist, or psychologist can help uncover contributing factors and form an effective treatment plan if needed

Addressing problems early usually leads to better long-term outcomes.


In conclusion, while research has found that humming during meals may be more prevalent among individuals on the autism spectrum compared to neurotypical people, it is not used as a diagnostic criterion for autism. 

Many behaviors and traits must be considered comprehensively by medical professionals during an evaluation.

However, gaining greater awareness of these types of tendencies can help individuals on the spectrum feel more comfortable and included in social environments like family dinner meals. 

If you suspect that you or a loved one may have autism, it is important to consult with a qualified professional for an accurate diagnosis and appropriate support.


1. Can humming while eating be a sign of another condition?

Yes, humming while eating can be a sign of other conditions, such as anxiety or obsessive-compulsive disorder.
It is also possible that humming behavior can be a coping mechanism for individuals with sensory processing difficulties.

2. How can I support someone with autism who hums while eating?

If you are dining with someone who has autism and they are humming while eating, it is important to be understanding and supportive. 
Avoid interrupting or criticizing their behavior, and allow them to continue humming if it helps them feel more comfortable or calm.
If you are concerned about the behavior, you can discreetly ask their caregiver or support person for guidance on how to best support them.

3. Is it important to diagnose autism early?

Yes, early diagnosis of autism is important for several reasons.
Early diagnosis can help individuals with autism access appropriate support and therapy, which can improve their quality of life and help them reach their full potential. 
Additionally, early diagnosis can help families understand and support their loved one with autism and can help reduce the stigma associated with autism.



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