Systematic review of potential health risks posed by pharmaceutical, occupational and consumer exposures to metallic and nanoscale aluminum, aluminum oxides, aluminum hydroxide and its soluble salts Original paper

Researched by:

  • Divine Aleru ID
    Divine Aleru

    User avatarDivine Aleru is an accomplished biochemist and researcher with a specialized background in environmental toxicology, focusing on the impacts of heavy metals on human health. With deep-rooted expertise in microbiome signatures analysis, Divine seamlessly blends rigorous scientific training with her passion for deciphering the intricate relationships between environmental exposures and the human microbiome. Her career is distinguished by a commitment to advancing integrative health interventions, leveraging cutting-edge microbiome research to illuminate how toxic metals shape biological systems. Driven by curiosity and innovation, Divine is dedicated to translating complex environmental findings into actionable insights that improve individual and public health outcomes.

    Read More

October 23, 2025

Researched by:

  • Divine Aleru ID
    Divine Aleru

    User avatarDivine Aleru is an accomplished biochemist and researcher with a specialized background in environmental toxicology, focusing on the impacts of heavy metals on human health. With deep-rooted expertise in microbiome signatures analysis, Divine seamlessly blends rigorous scientific training with her passion for deciphering the intricate relationships between environmental exposures and the human microbiome. Her career is distinguished by a commitment to advancing integrative health interventions, leveraging cutting-edge microbiome research to illuminate how toxic metals shape biological systems. Driven by curiosity and innovation, Divine is dedicated to translating complex environmental findings into actionable insights that improve individual and public health outcomes.

    Read More

Last Updated: 2025-10-23

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Divine Aleru

Divine Aleru is an accomplished biochemist and researcher with a specialized background in environmental toxicology, focusing on the impacts of heavy metals on human health. With deep-rooted expertise in microbiome signatures analysis, Divine seamlessly blends rigorous scientific training with her passion for deciphering the intricate relationships between environmental exposures and the human microbiome. Her career is distinguished by a commitment to advancing integrative health interventions, leveraging cutting-edge microbiome research to illuminate how toxic metals shape biological systems. Driven by curiosity and innovation, Divine is dedicated to translating complex environmental findings into actionable insights that improve individual and public health outcomes.

What was issued?

The article critically evaluates the health risks associated with aluminum exposure from various sources. The review synthesizes peer-reviewed literature on the toxicological effects of different aluminum compounds, including their impacts on the neurological, hematological, skeletal, and respiratory systems. It assesses risks linked to both long-term and short-term exposure to metallic and nanoscale aluminum, aluminum oxides, and salts, with a particular focus on dietary, pharmaceutical, occupational, and consumer exposures. The review also identifies the need for refined risk assessments, calling for further studies to better understand the health impacts of aluminum and to establish clearer safety limits, particularly for vulnerable populations.

Who is affected?

This review affects a wide range of stakeholders, including food manufacturers, pharmaceutical companies, and regulatory bodies responsible for setting safety standards for aluminum content in food, water, and consumer products. Individuals exposed to aluminum in occupational settings, such as those working in aluminum production and smelting industries, are at significant risk. Vulnerable populations, including infants, children, the elderly, and individuals with renal dysfunction, are especially affected due to their potential for higher aluminum accumulation. Public health officials and clinicians must be aware of the risks posed by aluminum exposure and advocate for safety measures to protect these populations. Regulatory agencies and industry players must align with the review’s recommendations to prevent excessive aluminum exposure and improve public safety.

Most important findings

The review found that aluminum exposure from various sources, including food, drinking water, pharmaceuticals, and consumer products, contributes to systemic aluminum accumulation in the human body. Occupational exposure, particularly in industries like aluminum smelting, leads to inhalation of aluminum particulates, which can be harmful to respiratory and neurological health. The study highlights that aluminum in its soluble forms, such as aluminum hydroxide and aluminum salts, poses a significant risk due to its ability to accumulate in tissues, particularly the brain, and its potential role in neurodegenerative diseases like Alzheimer’s. However, the review also emphasizes that evidence linking aluminum exposure to Alzheimer’s is still inconclusive, and further research is necessary. Regulatory guidelines for aluminum exposure in food and drinking water are outdated, and a reevaluation of safety limits is needed to account for emerging scientific evidence.

Key implications

The findings underscore the need for better regulation and tighter controls on aluminum content in consumer products, especially those that are ingested or used by vulnerable groups like children and individuals with renal impairments. Industry stakeholders must review and improve their practices related to aluminum use, particularly in food packaging, pharmaceuticals, and personal care products. There is an urgent need to update regulatory frameworks to set more stringent exposure limits and to reduce the potential for aluminum accumulation in the human body. Public health agencies should continue to educate the public on minimizing aluminum exposure, particularly from sources such as vaccines, food packaging, and personal care products. Industry-wide collaboration to reduce aluminum contamination, improve labeling, and ensure compliance with updated safety standards will be crucial in mitigating health risks associated with aluminum exposure.

Citation

Willhite CC, Karyakina NA, Yokel RA, Yenugadhati N, Wisniewski TM, Arnold IM, Momoli F, Krewski D. Systematic review of potential health risks posed by pharmaceutical, occupational and consumer exposures to metallic and nanoscale aluminum, aluminum oxides, aluminum hydroxide and its soluble salts. Crit Rev Toxicol. 2014 Oct;44 Suppl 4(Suppl 4):1-80. doi: 10.3109/10408444.2014.934439

Aluminum (Al)

Aluminum is a pervasive metal found in a wide range of consumer products, from food packaging and cookware to medications and personal care items. Although often overlooked, aluminum exposure can accumulate over time, posing long-term health risks, especially to vulnerable populations like infants, children, and individuals with kidney conditions.