Functional Testing for Children with Complex Autism
Why I’m the Right Person to Guide You
I’m Natsayi Dunira — a Registered Naturopathic Nutritionist and Certified GAPS Coach who specialises in helping children with complex autism.
Over the years, I’ve helped hundreds of families in 35+ countries transform their children’s daily lives helping children feel more comfortable, sleep better, stay calmer, and make exciting gains in speech and language.This isn’t guesswork or theory. It’s science-backed, parent-tested, and proven in real lives.
- I created this testing process to:
- Remove confusion
- Stop unnecessary supplementation
- Bring clarity to what your child truly needs
- Save parents' time, money and emotional strain
- Support real healing — from the inside out
You don’t need random protocols.
You need evidence… and a roadmap.
ORDER NOW
When your child is struggling, guessing becomes emotionally and financially exhausting.
Most parents come to me after months — sometimes years — of trying supplements, diets, therapies, or detox protocols… without knowing what their child’s body actually needs.
96 Food Panel IgG + IgA + IgG4
Reveals:
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Delayed IgG reactions
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Foods triggering behaviour, eczema, diarrhoea, sleep issues
Important for children with eczema, rashes, behaviour spikes, or unexplained symptoms.
£475
Organic Acids Test (OAT)
The 1 test I use for children with autism.
Reveals:
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Yeast, mold, bacteria
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Oxalates
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Mitochondrial markers
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Neurotransmitters
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Detox capacity
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Nutrient status
Perfect for children with behaviour issues, gut problems, poor speech, regression, sleep issues, or sensory challenges.
£324
Mycotoxin (Mold) Test
Reveals:
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Mold species
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Toxin levels
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Detoxification overwhelm
Ideal for children with regression, fatigue, dark circles, mast cell symptoms, sound sensitivity, and cyclical behaviour patterns.
£406
Hair Elements
Reveals:
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Mercury, lead, arsenic, aluminium
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Detox pathways
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Mineral deficiencies
Especially important for nonverbal children, sensory issues, motor delays, or children who regress dramatically with illness or supplements.
£155
Urine Amino Acids
Reveals:
Many children with autism struggle with behaviour, speech, sleep, and sensory challenges because their amino acids — the building blocks of neurotransmitters — are imbalanced.
This test helps us identify the exact biochemical imbalances preventing your child from:
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Regulating behaviour
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Developing speech
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Sleeping well
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Processing sensory input
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Tolerating supplements
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Detoxifying effectively
Understanding amino acids allows us to support neurotransmitters like serotonin, dopamine, GABA, and glutamate, and tailor a precise nutrition and supplementation plan.
£304
Complete offers a comprehensive stool Analysis
Reveals:
GI360 Complete offers a comprehensive stool profile using PCR, culture, and microscopy to detect pathogens, viruses, parasites, and bacteria associated with chronic gastrointestinal symptoms. It also evaluates digestion, inflammation, immunology, short-chain fatty acids, and intestinal health markers, such as beta-glucuronidase.
Best for chronic diarrhoea, constipation, pain, bloating, and picky eating.
£378
Vitamin D Profile
Reveals:
Vitamin D is one of the most important nutrients for children with autism, yet one of the most commonly deficient.
This test measures your child’s circulating Vitamin D (25-OH D) levels to determine whether deficiency is contributing to:
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Behaviour challenges
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Immune dysregulation
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Speech delays
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Poor sleep
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Low mood or anxiety
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Frequent infections
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Gut inflammation
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Poor detoxification
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Slow developmental progress
Why Vitamin D
Children with autism are more likely to be deficient due to:
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Gut malabsorption
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Limited food variety
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Low outdoor exposure
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Genetic SNPs
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Chronic inflammation
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High toxic load (mold/metals) using up Vitamin D stores
A deficiency can significantly impact behaviour, learning capacity, emotional regulation, and sleep.
This test helps us determine the right dose, the right form, and whether your child needs cofactors such as Vitamin K2 or Magnesium.
£88
The Methylation Profile
Reveals:
The Methylation Profile looks at how well your child’s body is able to detoxify, make neurotransmitters, repair cells, and regulate inflammation — all of which are critical in autism.
This test assesses key pathways connected to common SNPs such as MTHFR, MS, and CBS, by measuring:
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Methionine
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Cysteine
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SAM (S-adenosylmethionine)
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SAH (S-adenosylhomocysteine)
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Homocysteine
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Adenosine
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Cystathionine
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Methylation Index
Understanding your child’s methylation allows us to support safely:
✔ Detoxification
✔ Neurotransmitters
✔ Energy + mitochondria
✔ Speech + cognition
✔ Immune balance
This is why methylation testing is one of the most important tools for complex autism cases.
£219
Join the Community
A safe, supportive space for families to ask questions, get honest answers, and connect with others on the same healing journey.
Weekly live calls give you troubleshooting, guidance, and encouragement, so you’re never doing this alone.
It’s a calm corner of the internet — free from judgment and overwhelm — where confusion turns to clarity and hope becomes real progress.
Your membership includes:
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Weekly live Q&A sessions with expert advice
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Real case studies & success stories
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Supportive network of like-minded parents
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Personal insights from my own journey
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Live therapeutic challenges that spark change
£29.99/Month
Removing certain foods transformed Alan’s behavior, reducing aggression and distress. We’re deeply grateful for your compassionate guidance, Natsi
- Karen, UK Mum
Implementing the diet was challenging, but it helped my son talk, sleep well, and play with others. We’re grateful!
- JS, South Africa
Our son improved dramatically after six weeks on the planned diet—better sleep, focus, calmness, and speech. Thank you so much!
- Anne, UK Mum
Initially hesitant, I feared failure, but removing triggers transformed my son’s happiness and reduced anxiety. Thank you so much!
- Loyi, UK Mum
Since starting the diet, my daughter enjoys varied foods, avoids rage episodes, and manages school stress better. Amazing results!
- Gina UK Mum
- UE, Scotland
After following the program, my son thrived, constipation disappeared, and he’s now thriving in school. We’re grateful!
- SW, Canada
Two weeks on the GPS diet transformed my son’s life; he’s calmer, sleeps well, and has great bowel movements! Thank you!
- Theo, Cameroon
Initially skeptical about autism, our family faced crisis and exhaustion. We finally sought help for our son’s severe sleep issues!
- Mel, Nigeria
What is the first test you recommend for autism?
Does the NHS offer these tests?
What if my child has already had blood tests with the GP?
Do you ship tests internationally?
Can I book a full assessment once the results have arrived?
How long do results take?
Are the tests painful?
