Aluminum

A chemical element with the symbol Al and atomic number 13. It has a density lower than those of other common metals, at approximately one third that of steel. It has a great affinity towards oxygen, and forms a protective layer of oxide on the surface when exposed to air. – Materials Handbook: A Concise Desktop Reference

Aluminum salts are used as adjuvants in some vaccines, and are associated with the following conditions that we find in those with autism: Immune activation, Inflammation, Neuroinflammation, impairments in autophagy, dendritic abnormalities, increase in pro-inflammatory cytokines, microglial activation, increased levels of IL-6, oxidative stress, and changes in gene expression. – doi: 10.3390/toxics10090518

High levels of aluminum has been found in post-mortem brains of those with autism. – doi:10.1016/j.jtemb.2017.11.012

Aluminum / Toxicants

Aluminium adjuvants and childhood health: a call for science

Abstract
In July 2025, Andersson et al. reported in Annals of Internal Medicine that early-life exposure to Aluminium (Al)-adjuvanted vaccines was not associated with increased risk of 50 chronic diseases, based on a Danish cohort of 1.2 million children. While widely cited as reassuring evidence of Al-Based Adjuvant (ABA) safety, closer scrutiny reveals major methodological and conceptual flaws. Specifically, the study demonstrates limited understanding of Al toxicology, weaknesses in cohort design and statistical analysis, and insufficient transparency regarding potential conflicts of interest. We argue that these shortcomings prevent meaningful conclusions about ABA safety, particularly in relation to neurodevelopmental and autoimmune outcomes, and highlight the need for more rigorous, transparent, and scientifically grounded investigations.

More
  • February 10, 2026
Aluminum / Blood brain barrier / Bradford Hill criteria / Epidemiology / HLA / IL-1β / Lymphocytes / MTHFR / Neuroinflammation / NLRP3 / Toxicants

Aluminum Adjuvants, Autoimmunity, and Autism Spectrum Disorder: AComprehensive Mechanistic, Neuropathological, and Legal Analysis

Conclusions: Converging mechanistic, neuropathological, epidemiological, and genetic evidence demonstrates that aluminum adjuvants can trigger ASD in genetically susceptible individuals through well-characterized neuroinflammatory pathways. The 80-fold increase in ASD prevalence temporally correlating with vaccine schedule expansion, combined with robust biological mechanisms and postmortem findings, demands urgent re-examination of aluminum adjuvant safety in the context of neurodevelopment, particularly in genetically vulnerable populations.

More
  • February 2, 2026
Adjuvant / Aluminum / Autoimmunity / Genes / GI / Immune / Mercury / Mitochondria / MMR / Neurons / Pregnancy / Thimerosal

McCullough Foundation Report: Determinants of Autism Spectrum Disorder

Conclusion: The totality of evidence supports a multifactorial model of ASD in which genetic predisposition, neuroimmune biology, environmental toxicants, perinatal stressors, and iatrogenic exposures converge to produce the phenotype of a post-encephalitic state. Combination and early-timed routine childhood vaccination constitutes the most significant modifiable risk factor for ASD, supported by convergent mechanistic, clinical, and epidemiologic findings, and characterized by intensified use, the clustering of multiple doses during critical neurodevelopmental windows, and the lack of research on the cumulative safety of the full pediatric schedule. As ASD prevalence continues to rise at an unprecedented pace, clarifying the risks associated with cumulative vaccine dosing and timing remains an urgent public health priority.

More
  • October 27, 2025
Aluminum / Cadmium / Genes / Mercury / Metallothionein / Seizure / Thimerosal / Toxicants / Zinc

The role of environmental trace element toxicants on autism: A medical biogeochemistry perspective

Excerpt:
“The Cr, As and Al are found in high concentrations in the blood of an autistic child when compared to normal child reference values. The toxic metals, particularly aluminium, are primarily responsible for difficulties in socialization and language skills disabilities. Zinc and copper are important elements in regulating the gene expression of metallothioneins (MTs), and zinc deficiency may be a risk factor for ASD pathogenesis. Autistics frequently have zinc deficiency combined with copper excess; as part of the treatment protocol, it is critical to monitor zinc and copper levels in autistic people, particularly those with zinc deficiency. Zinc deficiency is linked to epileptic seizures, which are common in autistic patients. Higher serum manganese and copper significantly characterize people who have ASD. Autistic children have significantly decreased lead and cadmium in urine, whereas they have significantly higher urine Cr. A higher level of As and Hg was found in the ASD individual’s blood.”

More
  • February 2, 2023
20 Papers / 3 Studies / Adjuvant / Aluminum / Autophagy / Blood brain barrier / Cytokines / Dendritic cells / Genes / Glial Cells / IL-6 / Immune / Inflammation / Neuroinflammation / Oxidative Stress / Review / Toxicants

Inflammation and Autophagy: A Convergent Point between Autism Spectrum Disorder (ASD)-Related Genetic and Environmental Factors: Focus on Aluminum Adjuvants

Excerpts:
“As a result of these pieces of evidence (epidemiological, clinical and preclinical data) pointing to a potential causal association between early ABA (aluminum-based adjuvants) exposure and increased ASD risk, new hypotheses regarding neurological and immunological consequences of ABA-containing vaccines and novel clinical strategies (i.e., postponing of ABA-containing vaccines and replacement of ABAs with calcium phosphate are now being considered.“

“Our review presents the lack of fundamental scientific data demonstrating that Al adjuvants are safe and do not induce any long-term side effects. It also supports further investigation related to the effects of early Al adjuvant exposures occurring in combination with genetic susceptibility factors, including autophagy, immune and inflammation process genes. As accumulating evidence shows that modulating the levels of autophagy may increase the risk of NDDs, such studies will elucidate a new etiology for these complex disorders and contribute to develop potential new diagnostic and therapeutic tools.”

More
  • August 31, 2022
Aluminum / Mercury / ROS / Thimerosal

Association of autism with toxic metals: A systematic review of case-control studies

Excerpt:
“Six case-control studies with 425 study subjects met our inclusion criteria. A total of four studies indicated higher levels of As, Pb, Hg, Cd, Al, Sn, Sb, Ba, TI, W, and Zr in whole blood, RBC, in whole blood, RBC, and hair samples of children with autism compared with control suggestive of a greater toxic metal exposure (immediate and long-term). Three studies identified significantly higher concentrations of Cd, Pb and Hg in urine and hair samples of autistic children compared to control suggesting decreased excretion and possible high body burden of these metals. The findings from this review demonstrate that high levels of toxic metals are associated with ASD, therefore, critical care is necessary to reduce body burden of these metals in children with ASD as a major therapeutic strategy.”

More
  • January 1, 2022
Aluminum / Post-mortem

Aluminium in human brain tissue from donors without neurodegenerative disease: A comparison with Alzheimer’s disease, multiple sclerosis and autism

Excerpt
The data for these control tissues were compared with data (measured using identical procedures) for sporadic Alzheimer’s disease, familial Alzheimer’s disease, autism spectrum disorder and multiple sclerosis. Detailed statistical analyses showed that aluminium was significantly increased in each of these disease groups compared to control tissues. We have confirmed previous conclusions that the aluminium content of brain tissue in Alzheimer’s disease, autism spectrum disorder and multiple sclerosis is significantly elevated”

More
  • May 1, 2020
AHRQ / Aluminum / Cadmium / Mercury / Thimerosal

Metal and essential element levels in hair and association with autism severity

Excerpt:
“Results: A significant and positive correlation was found between hair metal burden (lead, aluminum, arsenic and cadmium levels) and severity of ASD symptoms (social communication deficits and repetitive, restrictive behaviors). Hair zinc level were inversely related with age while there was a negative, significant association between hair zinc level and severity of autistic symptoms (defective functional play and creativity and increase of stereotyped behavior). Lead, molybdenum and manganese hair levels were inversely correlated with cognitive level (full intelligence quotient) in ASD individuals.

Conclusions: The present study suggests the importance to combine metallomics analysis with pertinent disease features in ASD to identify potential environmental risk factors on an individual level possibly in the early developmental period.”

More
  • January 1, 2020

Archives

Email:
Admin at How Do Vaccines Cause Autism dot org

How Do Vaccines Cause Autism