Speech delay is a common childhood problem, and nutrition as well as other therapies might well play an important role in helping kids to develop better speech, language and communication skills. Stuttering is also common in young children and again nutrition maybe the key.

Speech delay has historically been estimated to affect around 6% of children, but UK figures are now finding that speech, language and communication needs (SLCN) are now the most common primary type of Special Educational Needs (SEN) support and 22% of SEN pupils need SLCN support. The number of pupils with SEN overall increased by around 3.3% between January 2018 and January 2019, while the number of children with SLCN increased by almost 6% during the same time period. Speech, language and communication delay seems to be more common in boys versus girls.

A referral to speech and language therapy may happen in a number of scenarios, including:

  • No double syllable babble by 12 months of age
  • Your little one is saying fewer than six words, or there is constant drooling, at 18 months.
  • There are still no two- to three-word sentences by two and half years of age
  • Speech continues to be unintelligible by 4 years old

There are many mechanical causes of speech delay from tongue tie, lip tie and cleft palate, and this article investigates nutritional reasons why a child could be struggling with their speech.


Approximately an additional 3–5% of preschool-aged children will also begin stuttering at some point and it can suddenly come on or creep up slowly. A stutter can equally also vanish overnight or take time to disappear, and every child is different – three quarters of kids overcome their speech impediments and about a quarter have it for the very long term.

Developmental stuttering is the most common type of stuttering in kids. It usually happens when a child is a toddler between the of ages 2 and 5. It may happen when a child’s speech and language development is a bit behind, or if they are struggling to express what they need or want to say. Sometimes it is when their brain is working faster than their mouth can keep up, and occasionally it can be stress/anxiety induced.

What Factors Can Help or Hinder Speech Development

Interestingly breast feeding is thought to help prevent stuttering and helps with overall speech development, and this maybe because it encourages better oral motor skills. Chewing food is super important too and is a key reason why it is important to encourage kids to eat home cooked food rather than soft baby puree and melt in the mouth snacks.

Retained primitive reflexes may play a role and the palmar grasp reflex which is meant to disappear by 4-6 months is important for hands and fingers to be mobile and flexible, as well as helping speech development. The palmar grasp reflex is the tight grip a baby makes with their fingers around your finger – this natural automatic response should naturally go, and you know if a child has this retained reflex if you gently brush a feather or pencil over the palm of an outstretched hand and see if the fingers try to curl up in response. Clapping, drawing, kneading play dough, ripping and crunching paper, digging soil with their hands, knitting and sewing as well as learning to play instruments can all help mature and release this primitive reflex over time.

Infections might trigger stuttering too and research has found that streptococcus infections such as Scarlett Fever, Tonsilitis and Strep Throat can activate stuttering. If a child has a sudden onset of stuttering after having a throat infection, then it would be important see your GP or paediatric neurologist to assess for a possible strep infection with a neuroinflammatory autoimmune response. In cases of PANDAS, which is another autoimmune neurological response to strep, this infection can also lead to other symptoms like anxiety, OCD and tics as well as bed wetting and a decline in school work.

Recent studies have found that the Covid-19 virus may also lead to stuttering in some people as well as triggering other neurological changes. It is thought that this virus and the chronic inflammation and oxidative stress it can cause, may compromise the blood brain barrier and may affect a child or adult neurologically.

If the stuttering is infection mediated, then it is important to work on the underlying immunity and inflammation through dietary changes and targeted supplements as well as seeking medical support.

Another immune factor to take into consideration is ear infections (otitis media) which can affect hearing as well as well as intelligible speech. Working on a child’s underlying immunity can help to prevent ear infections and this may help to clear the eustachian tubes. Sometimes undetected food allergies or sensitivities can also lead to “glue ear” and a tendency to ear infections. Some people report that cranial osteopathy can help with a child’s aural health, especially if they are prone to ear infections or glue ear.

Nutrition-wise, a couple of studies have found that kids who stutter are lower in core minerals across the board, including calcium, magnesium zinc, potassium, chromium & molybdenum. We can run hair elements testing to establish which specific minerals need supporting. Low magnesium status seems to be more common in kids that stutter and this is found in green leafy veg, nuts, seeds and dark chocolate. A regular nice warm bath with Epsom salts added or magnesium supplements can also help.

Vitamin B1 is also an important nutrient where low levels have been associated with stuttering. Vitamin B1 is found in wholegrains, meat, fish, poultry, eggs, milk and other dairy, green veggies and beetroot and pulses. It can also be supplemented for a few months to help a child catch up as it only added in small amounts in some kids’ foods like cereals and baby porridge.

Maternal Vitamin B12 intake when pregnant is also a factor to consider and this can affect speech as well as overall development and learning. One study found that the children of women who consumed the least vitamin B12 rich foods such as meat, fish and eggs and/or supplements led to increased likelihood of poor vocabulary at 2 years, a reduced ability at blending words to make sentences by around 3 years, poor speech fluency at 6 years, and poor mathematics comprehension all the way through primary school.

Acetylcholine is an important brain food for overall mood, learning, short term memory and motivation. Dietary sources of choline include liver, eggs, sunflower seeds and peanut butter as well as silken tofu. Our gut bacteria also play a role and lactobacillus strains are the building blocks for making acetylcholine. This is one of the reasons why live yoghurt and kefir are so important and might be why dairy-free kids often seem to be a bit slower in their speech development and learning.

Omega 3 from oily fish, such as salmon, sardines, mackerel and shellfish as well as walnuts, chia, flax and hemp is a well-researched essential fatty acid which helps with general overall development including speech and language. Anecdotal stories say that this has helped quite a bit with stuttering and is worth pursuing as it is such important brain food, and also helps with eye development. If your child does not eat much or any oily fish, then it would be prudent to trial 3-6 months of a good quality omega 3 fish oil.

I hope that these tips help your little one with their speech and language development. Everyone is different and the underlying causes of speech delay and stuttering are complex. However, nutrition is a key area to look at if your child is struggling with their speech and communication. Since you need to feed your child at least three times a day anyway, these tips can easily be incorporated into your daily lives. If you would like to investigate this further then do be in touch with my paediatric nutritional therapy team.

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