Published on June 2, 2025
New Insights from Dr. Coimbra on Neurotoxicity, Vitamin D, and Silica Detox for Autism Spectrum Disorders
Key Points
Dr. Coimbra covers a wide range of topics during the following featured interview. Here are just some of the highlights:
- Aluminum is highly toxic to the developing brain and may contribute to autism.
- Vitamin D reduces inflammation and supports immune balance in ASD.
- Aluminum nanoparticles from vaccines can cross into the brain.
- Silica helps remove aluminum from the body and may improve symptoms.
- A powerful real-life case: A mother with multiple sclerosis (MS) and her daughter with depression saw major improvements after silica-based detox therapy.

In today’s featured video interview and presentation, renowned neurologist Dr. Cicero Coimbra explores the growing body of evidence linking aluminum toxicity—particularly from vaccines—with autism spectrum disorders (ASD). He highlights how vitamin D deficiency, immune dysregulation, and environmental triggers contribute to rising global autism rates, discusses how autism could be categorized as an autoimmune condition, and introduces silica therapy as a potentially groundbreaking method to detox aluminum from the brain and body to help improve symptoms.
Dr. Coimbra’s work highlights the need for personalized, science-based care in addressing complex conditions, especially autoimmune diseases. He emphasizes that effective treatment—including when dealing with environmental toxins like aluminum—requires skilled practitioner oversight, precise lab monitoring, and ongoing education for both patients and caregivers. Learn more about Dr. Coimbra and the Coimbra Protocol, which centers around the therapeutic use of vitamin D, is used to treat autoimmune diseases in another recent presentation and interview here.
The video below is a must-watch for parents, healthcare professionals, and anyone concerned with autism, chronic illness, mental health, or natural detox solutions.
Watch Now! “Does Aluminum Exposure Cause Autism? New Insights on Neurotoxicity & ASD Research”
Topics Covered in the Video
00:00 – 01:04 – Introduction to Dr. Cicero Coimbra
01:05 – 01: 37 – Why Dr. Coimbra began treating autism (2014)
01:38 – 02:46 – High-dose Vitamin D therapy in autism
02:47 – 03:44 – Rising global autism rates: 1 in 10 in Brazil
03:45 – 06: 13 – Using Bradford Hill criteria to investigate autism causes
06:14 – 09: 15 – Global environmental triggers: Sunscreen, vaccines, and vitamin D drop
09:16 – 10:54 – Mechanism: Aluminum nanoparticles in vaccines
10:55 – 13: 27 – Aluminum’s widespread toxicity
13:28 – 18:33 – Aluminum found in brains of autistic individuals (Oxford study)
18:34 – 21:58 – Trojan Horse mechanism: How aluminum enters the brain
21:59 – 25:06 – Aluminum explains metabolic dysfunctions in ASD
25:07 – 27:55 – Vitamin D suppresses inflammatory cytokines (TH17)
27:56 – 31:29 – Aluminum-containing vaccines given during pregnancy
31:30 – 32:00 – Introducing silica for aluminum detox
32:01 – 34:12 – Evidence: Urinary and blood aluminum levels rise with silica
34:13 – 36:08 – Silica added to MS and autoimmune treatment protocol
36:09 – 40:20 – Case Story: MS mother & daughter with depression
40:21 – 43:00 – Daughter’s recovery: 85% better, psychiatric meds reduced
43:01 – 46:08 – Principle of parsimony: Aluminum as root cause
46:09 – 49:30 – Silica dosage and safety explained
49:31 – 49: 42 – Silica can be taken with antidepressants safely
About Cicero G Coimbra, MD, PHD
Dr. Coimbra earned his medical degree from the Federal University of Rio Grande do Sul (1979) and holds specialist degrees in internal medicine and neurology. He completed a fellowship in pediatric neurology at the Jackson Memorial Hospital of the University of Miami and completed postdoctoral training at the University of Lund, Sweden. He was Associate Professor in the Department of Neurology and Neurosurgery and is the Founding President of the Institute for Research and Treatment of Autoimmunity in Brazil.
Dr. Coimbra’s clinical work focuses on neurodegenerative and autoimmune diseases, and he currently seeks to deepen and share his knowledge about the causes of the worldwide exponential rise in the prevalence of Autism Spectrum Disorder (ASD) and other neurodevelopmental disorders.
Find more information about the Coimbra Protocol here.
Patients from several countries have greatly benefited from this protocol. Some of these stories can be found in this book in English: “BEYOND VITAMIN D: Stories of patients, family members, and doctors whose lives have been transformed by the Coimbra Protocol”
Explore More with GrassrootsHealth
This conversation with Dr. Coimbra is part of our ongoing mission to share evidence-based insights into vitamin D, immune health, and whole-person healing.
Watch, share, and help us spread this life-changing knowledge!
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