social interaction

Half a crushed GABA Calm for my autistic child: sleep, anxiety and sensorimotor skills (writing, horse riding and swimming) improve

January 6, 2023 By Trudy Scott 28 Comments

The inhibitory neurotransmitter GABA (gamma-aminobutyric acid) and the main excitatory neurotransmitter glutamate released by neurons in the cerebellum play an important role in sensory processing in autism. Research shows GABA to be low and glutamate to be elevated in autism spectrum disorders. While we don’t have any research supporting the amino acid GABA (used as a supplement) to raise GABA levels (and counter high glutamate levels) in autism, we do have much clinical evidence i.e. GABA can have a major impact on sensorimotor skills, as well as improving sleep, anxiety and social interaction. Today I’m sharing feedback from a mom whose autistic child is experiencing these benefits. Here is Vic’s feedback in her own words:

I use half a GABA tablet crushed in liquid for my autistic child (the Source Naturals you recommend) and it definitely helps. A whole GABA tablet and we see increased waking in the night but half seems perfect.

I’m using GABA in combination with 5-HTP. GABA was added after 5-HTP because it didn’t feel enough on its own and sleep and anxiety definitely improved at that point. We tried L–tryptophan first without success.

Sleep and sensorimotor skills have improved since weaning off an SSRI and onto the above combination as her willingness to engage with social interaction. We are also working on OT (occupational therapy) and retained reflexes and so improvements may be from that too.

Oh also supplementing b6, but not zinc as she refused it due to taste (which from reading means she probably doesn’t need it)

On a personal note there’s no way I’d manage to get her to drink [GABA Oolong] tea with her taste sensitivities – same reason I’m crushing rather than sublingual so practically speaking Source Naturals GABA is much easier than copying what they did in the study.

Vic is referring to the GABA Oolong tea study – GABA Oolong tea in children with autism: improvements in sensorimotor skills, autism profiles, anxiety and sleep (new research).

This very small (nine children) recent study found “significant improvement in manual dexterity and some large individual improvements in balance, sensory responsivity, DSM-5 criteria and cortisol levels with GABA tea.” They ingested the equivalent of 39.2 mg GABA for the day.

Sensorimotor skills that have improved: pen and pencil use, horse riding and swimming

I was thrilled to see her wonderful feedback in the comments section of the above blog and shared my delight, asking her which sensorimotor skills have improved. Vic shared this:

Sensorimotor wise, the biggest improvement I’ve noticed is her pen and pencil use – she’s actually being able to write and draw what she wants better than she was and she’s less avoidant of it in general. Her hand/eye referencing is noticeably better and her pressure control with a writing implement.

Her balance and core strength is improving (OT feel core strength generally doesn’t come properly until those internal senses are functioning) – her horse riding instructor commented on the change in how she is able to hold herself on a horse – especially when the horse got an unexpected itch the other week and she could simply adjust her body without conscious effort. Before she would have wobbled if a horse had done that.

She’s now teaching herself to swim as she has a better sense of body awareness to coordinate her limbs to all be doing what she wants.

So yeah mostly vestibular, proprioception and interoception are all working better!

As you’ll read below, research does show that GABA plays a role in sensorimotor difficulties in autism.

Some of my feedback on the GABA product and dosing, and adding it after 5-HTP

In case you’re not familiar with the Source Naturals GABA Calm product, it’s a sublingual tablet that contains 125 mg GABA (and some other ingredients). It’s typically used as a sublingual i.e. held in the mouth and dissolved, but this mom has figured out that crushing it and mixing it in liquid works best for her daughter.

To see these results with only 62 mg GABA is impressive. But as I’ve shared before, dosage does depend on your unique needs and there can be a large variation in dosing. As mentioned above, in the GABA Oolong autism study, the equivalent of 39.2 mg GABA was used daily.

That said, I did say I’d consider exploring a GABA only product at night if there are still some low GABA symptoms that remain. This could also be mixed in water.

Given that her daughter is doing occupational therapy too and also using 5-HTP and vitamin B6 (since low serotonin and pyroluria/social anxiety is common in autism) it can be challenging to tease out how much has improved with GABA alone. Vic did add GABA after having started 5-HTP and this is the best way to know what is helping which symptoms i.e. using a layered approach.

It’s also good that she figured out 5-HTP was beneficial when tryptophan wasn’t. It’s not unusual that some folks do better on one vs the other.

GABA does play a role sensorimotor difficulties in autism – the research

As reported in this 2016 paper, The Role of Sensorimotor Difficulties in Autism Spectrum Conditions:

In addition to difficulties in social communication, current diagnostic criteria for autism spectrum conditions also incorporate sensorimotor difficulties, repetitive motor movements, and atypical reactivity to sensory input.

GABA does play a role in sensorimotor difficulties as reported in this same paper. Here are some of the highlights:

The inhibitory neurotransmitter GABA (gamma-aminobutyric acid) and the main excitatory neurotransmitter glutamate released by [neurons in the cerebellum] play an important role in sensory discrimination in autism. GABA is known to decrease the firing of neurons , thereby reducing and inhibiting sensory feedback.
GABAergic functioning has been implicated in tactile reactivity.
Reductions in GABAergic system have been discovered in brain tissue: with significant reductions in GABA_A receptors, 63% reduction in comparison to controls, and a reduction by 61% of the glutamic acid decarboxylase protein (the enzyme responsible for converting glutamate into GABA).
Increased glutamate levels (excitatory neurotransmitter) in blood and platelets have been found in autism subjects, suggesting impaired conversion of glutamate to GABA, consequently increasing the excitatory state of the brain.

In the section on future directions, the authors conclude that addressing the deficiency of the inhibitory neurotransmitter GABA in the cerebellum of those with autism, “could have a global impact on sensorimotor planning, cognitive and social development.” They recommend a non-evasive GABA substitute such as oolong tea.

Elsewhere in the paper, they mention the amino acid l-theanine which “blocks the binding of l-glutamic acid to glutamate receptors in the brain, thereby perhaps aiding the improvement in motor activity by increasing inhibition of movement.”

I’d like to propose that the amino acid GABA is the subject of future research, given what we see clinically.

Resources if you are new to using amino acids as supplements

If you are new to using GABA or any of the other amino acids as supplements, here is the Amino Acids Mood Questionnaire from The Antianxiety Food Solution (you can see all the symptoms of neurotransmitter imbalances, including low GABA and low serotonin).

If you suspect low levels of any of the neurotransmitters and do not yet have my book, The Antianxiety Food Solution – How the Foods You Eat Can Help You Calm Your Anxious Mind, Improve Your Mood, and End Cravings, I highly recommend getting it and reading it before jumping in and using amino acids on your own so you are knowledgeable. And be sure to share it with the practitioner/health team you or your loved one is working with.

There is an entire chapter on the amino acids and they are discussed throughout the book in the sections on gut health, gluten, blood sugar control, sugar cravings, self-medicating with alcohol and more.

The book doesn’t include product names (per the publisher’s request) so this blog, The Antianxiety Food Solution Amino Acid and Pyroluria Supplements, lists the amino acids that I use with my individual clients and those in my group programs. You can find them all in my online store.

If, after reading this blog and my book, you don’t feel comfortable figuring things out on your own (i.e. doing the symptoms questionnaire and respective amino acids trials), a good place to get help is the GABA QuickStart Program (if you have low GABA symptoms). This is a paid online/virtual group program where you get my guidance and community support.

If you are a practitioner, join us in The Balancing Neurotransmitters: the Fundamentals program. This is also a paid online/virtual program with an opportunity to interact with me and other practitioners who are also using the amino acids.

I’m so happy for this young girl and she and her family must be thrilled with her results. I really do appreciate Vic for sharing this outcome – it’s so inspiring and also motivating if you are a parent.

Have you used the amino acid GABA personally or with clients/patients and observed improvements in sensorimotor skills? How much and what benefits have you seen? Which product have you used? Please do share if the diagnosis is autism spectrum disorder or something else.

Have you also seen improvements with anxiety, sleep and social skills when using the amino acid GABA?

Feel free to post your questions and feedback in the comments below.

The vagus nerve impacts mood, anxiety, immune response, digestion and heart rate

May 4, 2020 By Trudy Scott 12 Comments

The vagus nerve forms a bi-directional “super-highway” between your brain and the majority of your internal organs. Unless your vagus nerve is in good shape and activates readily when it is supposed to, the communication between your brain and the body will be disrupted.

This modern world can lead to overstimulation of the nervous system and you can become desensitized to chronic stress. Over time, this can lead to low vagal tone, which has been linked to a variety of mental and physical health issues, including chronic inflammation, poor gut function, neurodegeneration, autoimmunity and cancer.

And we know this to be true: you cannot FULLY heal leaky gut, microbiome function or brain issues WITHOUT optimizing your vagus function.

Host of the Mind, Body & The Vagus Nerve Connection Summit, Eva Detko, PhD, MSc, BA (Hons), mIAHT, shares the above wisdom about the vagus nerve. I’ll add this: overstimulation of the nervous system is especially high right now during the coronavirus pandemic.

In my interview, Balancing Neurotransmitters to Optimize Vagus Function, we start with a review paper that reports how the vagus nerve is intricately connected with anxiety and mood (and immunity).

I share from Vagus Nerve as Modulator of the Brain–Gut Axis in Psychiatric and Inflammatory Disorders:

The vagus nerve represents the main component of the parasympathetic nervous system, which oversees a vast array of crucial bodily functions, including control of mood, immune response, digestion, and heart rate.
It establishes one of the connections between the brain and the gastrointestinal tract and sends information about the state of the inner organs to the brain via afferent fibers.

The review article goes on to state how the vagus nerve is an attractive tool for treating psychiatric and gastrointestinal disorders: “There is preliminary evidence that vagus nerve stimulation is a promising add-on treatment for treatment-refractory depression, posttraumatic stress disorder, and inflammatory bowel disease.”

And as we all know when we hear the term treatment-refractory depression, it means we haven’t got to the root cause of it. It just means that medications haven’t worked for it.

So this allows us to extrapolate and say, well, there’s other lifestyle and dietary, and nutritional approaches that we could use. But they’re saying that stimulating the vagus nerve, activating it, can actually help in this area. And with my work in anxiety, whenever I see depression, I feel like I can replace that with anxiety (because of similar underlying causes). The other thing that they say is that there’s this impact on inflammation: “Treatments that target the vagus nerve increase the vagal tone and inhibit cytokine production.”

And we know that when we’ve got inflammation going on in the body, that’s going to contribute to mood disorders: “Stimulation of vagal efferent fibers in the gut influences neurotransmitters (like serotonin and dopamine, and GABA) that play a crucial role in major psychiatric disorders.”

So the conclusion is that vagal tone is correlated with the capacity to regulate stress responses and can be influenced by breathing. Its increase through meditation and yoga is likely to contribute to resilience, and the mitigation of mood and anxiety symptoms. And we know from other research, and we know from just doing it, that using meditation and yoga is going to affect anxiety levels. We’ve seen research showing that yoga and meditation raises GABA levels, which is one of the neurotransmitters that helps us feel calm. But now we’re also seeing from the research that good vagal tone has an impact as well.

So it’s really exciting to see that there’s many different ways that we can use to approach someone who does have anxiety issues.

I also talk about a very interesting study that brings the connections between GABA and the vagus nerve together very nicely. As I’m talking I see Eva nodding in agreement as I cover this. I wanted to share this study to add another mechanism as to how GABA may work, given so many people don’t believe it can because of the blood brain barrier.

This was an animal study done in 2011 and it’s titled: Ingestion of Lactobacillus Strain Regulates Emotional Behavior and Central GABA Receptor Expression in a Mouse via the Vagus Nerve. You may have had other people in the summit talking about this. I can see you nodding there. Let me just bring it back to this discussion because I’ve got something to add about this. But what they found is this – Lactobacillus rhamnosus increased GABA in the hippocampus. It reduced cortisol levels, which was caused by the increased stress, and it reduced anxiety and the depression in the animals.

When they severed the vagus nerve in some of the mice in the study they found that these neurochemical and behavioral effects were not found. So as soon as the vagus nerve was severed, the effects of the Lactobacillus rhamnosus, which was increasing GABA levels, was not reducing the anxiety and it was not reducing those cortisone levels.

The biggest question that I get about GABA is: “How could GABA possibly work if it can’t cross the blood brain barrier?” Maybe this is one way that is having an impact on anxiety. We know that we’ve got a lot of GABA receptors in our peripheral tissue. We’ve got GABA receptors in our muscles, which probably is the reason why we feel it when we’ve got this physical tension, or we’ve got the spasms. We’ve got GABA receptors in our pancreas. We’ve got GABA receptors in our endocrine system.

But maybe this vagus nerve connection and the fact that when it’s severed we’re not getting those effects, maybe this is another way that GABA is having an impact on anxiety.

Making the vagus nerve connection to serotonin, I share some interesting new research on SSRIs/antidepressants and the vagus nerve: Oral Selective Serotonin Reuptake Inhibitors Activate Vagus Nerve Dependent Gut-brain Signalling.

SSRIs like Zoloft or Paxil or Prozac are often prescribed for anxiety, depression, autism and dementia. And there’s a whole host of issues that we have with SSRIs where you’ll have serious withdrawal symptoms in some people.

In the study, the researchers proposed that SSRIs were having an effect on serotonin and it was the vagus nerve that was now communicating to the brain leading to increased serotonin levels. Similar to the GABA study, when they severed the vagus nerve of the mice, they did not see the same benefits from the SSRI.

My thinking is this: could we possibly extrapolate and say the amino acid tryptophan may have similar effects?

We won’t hold our breath for a similar tryptophan study but we can learn from this paper and possible mechanisms.

I also share how I use GABA and tryptophan with clients so if you’re new to using targeted individual amino acids you’ll learn more about this too.

As you know, my work is primarily using the neurotransmitters precursors (such as the amino acids) and using dietary changes, but we don’t want to forget about other approaches like vagus nerve support.

If we can improve vagus function, then we’re going to get even better benefits.

I share some of my favorite vagus nerve exercises. One of them – social interaction – has been challenging lately but cold showers are very do-able.

Let me share some aspects on the importance of social interaction for improving vagal tone.

Research shows that the more social interactions you have, the more it improves vagal tone. And then that improved vagal tone, improves your mood and makes you more social (and has ramifications for so many other areas as you’ll learn on the summit).

However if you have a condition called pyroluria (social anxiety, preferring one-to-one connections rather than being in large groups, not liking small talk, early morning nausea, not really big on animal protein – I go into it in depth during the interview if it’s new to you), getting out and being social can be very challenging when you are forcing yourself and putting on a brave face:

It’s a very stressful situation in doing that, and then it makes your pyroluria worse so your social anxiety gets worse. So when you have pyroluria and you have a stressful situation, you end up dumping high levels of zinc and B6. So it makes things worse.

If you do go out, it’s either very stressful or you just don’t even do it. So my contribution to the discussion is: let’s address pyroluria and that’s going to in turn allow people to get out and socialize without feeling uncomfortable, without feeling awkward, without having to stress, without feeling absolutely exhausted afterwards, and it’s going to help improve vagal tone.

Eva sums up with this important aspect:

What people need to know is that social connection is good for your vagus nerve only if it’s perceived positively by you internally. So if you’re in a situation where you’re forcing yourself to interact with other people, you’re actually not going to have a positive knock-on effect on your vagus nerve because it’s going to be the opposite. You’re going to stimulate the sympathetic nervous system response because you’re there, as you described, completely uncomfortable and basically stress out. So those social connections need to be positive.

Here are some interviews I look forward to tuning into:

Niki Gratrix, BA, Dip ION: Connecting the Vagus Nerve, Emotions and Gut Function
Ben Lynch, ND: Epigenetics of Chronic Stress
Bridgit Danner, LAc, FDNP: How Mold Toxicity Damages Your Nervous System
Jay Davidson, DC, PScD: Impact of Infections on Mitochondrial and Vagus Function
Kimm Sun, CNM: Impact of Birth Trauma Across Lifetime
Eva Detko, PhD, MSc, BA (Hons): Impact of Perfectionism on Heart Rate Variability
Misa Hopkins: Vagus Nerve Session of the Day – Vagus Nerve Sound Healing

I don’t go into the immune connection in my interview because it was recorded before the coronavirus pandemic started but keep this in mind as you tune in: you cannot have a well-functioning immune system without a healthy nervous system, and vice-versa!