The Hidden Dangers of Aluminum in Bottled Water
- Published:
- Updated: April 30, 2025
Summary
Excessive aluminum in bottled water poses health risks, including neurological disorders, kidney issues, and digestive problems. Children are especially vulnerable. Despite regulations, aluminum levels vary among brands. Choosing low-aluminum options or glass bottles can mitigate risks. Be informed and seek alternatives to minimize exposure to this hidden danger.
- Health risks: Aluminum exposure can lead to neurological disorders, kidney problems, digestive issues, and developmental concerns in children.
- Alternatives: Opt for low-aluminum bottled water brands or choose glass bottles to reduce exposure. Stay informed about water quality and seek alternatives when possible.
- Minimizing exposure: Choose aluminum-free products, use alternative cookware materials, and stay informed about water sources to limit aluminum intake.
Aluminum is a natural metal, present throughout the Earth’s crust. But today it’s in our food and water and everything else. Bottled water contains aluminum for two main reasons: water source and purification. There are even bottled water manufacturers who choose water from the naturally aluminum-enriched source. Other times aluminum salts are added to water for treatment, which may end up being the aluminum left in the product.
Why should this concern us? It’s because too much aluminum is associated with disease. Small amounts can be tolerated by the body but long-term exposure is dangerous. Then the question arises: is drinking bottled water laced with aluminium harmful?
Does Aluminum Leach Into Water?
Aluminum leaching into water is a known phenomenon, particularly when the water comes into contact with aluminum materials over time. While drinking water from aluminum cans or bottles may not pose immediate health risks, prolonged contact can lead to small amounts of aluminum leaching into the water, especially if the pH level of the water is low (acidic). This can be more common in bottled water with extended storage, where the material might degrade or be affected by temperature fluctuations. Studies show that the longer water is stored in aluminum containers, the higher the potential for leaching. However, the amount of aluminum typically leached into water from containers is regulated, and the levels are far below the threshold considered harmful. To minimize potential exposure, using high-quality aluminum bottles with proper liners or opting for glass bottles is a good choice.
- "Bottled water stored in aluminum containers for over 6 months has shown a 5-10% increase in aluminum levels, according to some studies."
- "The amount of aluminum that leaches into water from aluminum containers is typically 0.2 to 0.5 mg/L, which is well within the EPA’s safe drinking water limit."
Is Aluminum Safe to Drink From?
Aluminum is commonly used for a wide variety of consumer products, including packaging, cookware, and even some water bottles. But when it comes to drinking from aluminum containers, there are concerns about whether aluminum leaches into the beverage and what impact it might have on health. The good news is that the amount of aluminum that typically leaches into water from cans or bottles is very small. The FDA sets strict limits on the amount of aluminum that can be present in products, ensuring that the levels are within safe ranges. However, exposure over extended periods and in higher amounts could be a concern, especially if the aluminum is combined with acidic substances or if the product is used excessively. Generally, drinking from aluminum containers occasionally is considered safe, but continuous exposure—particularly through low-quality aluminum containers or bottles with improper coatings—should be avoided.
The FDA regulates aluminum in drinking products, allowing no more than 0.2 mg/L of aluminum to leach into beverages.
Aluminum and Its Link to Neurological Disorders
Some scientific studies have even suggested that aluminum consumption contributes to neurological diseases. Because of aluminium’s tendency to accumulate in the nervous system and brain and create noxious oxidative stress, scientists have looked for its relationship with Alzheimer’s and Parkinson’s disease.
In Alzheimer’s disease, for example, autopsies have frequently shown measurable levels of aluminium in the brain tissues of those who are deceased. That’s prompted speculations that the metal might explain the hallmark brain dysfunction associated with Alzheimer’s. But that’s the most important part: the issue is still being researched, and no clear causal link has yet been established.
- "A study by the World Health Organization found that the average aluminum concentration in human brains with Alzheimer’s disease is 2 to 3 times higher than that in healthy individuals."
- "Aluminum levels in the brain tissue of Alzheimer’s patients have been recorded at 0.3 to 1.0 μg/g, which is significantly higher than the general population."
Effects of Aluminum on Kidney Function
We also have kidneys, which draw toxins and waste, such as aluminum, from our bloodstream. But if we ingest too much aluminium, this filter may be unable to filter it out, and the metal can end up in our body.
This build-up of aluminum has been linked to kidney diseases. For those already ailing with impaired kidneys, the risk is even greater. So, let’s be aware of how much aluminum we put in our bottles so that these organs don’t get damaged.
- "According to the National Kidney Foundation, long-term exposure to high levels of aluminum in people with kidney disease can lead to bone disease and dialysis encephalopathy."
- "In studies, aluminum exposure in individuals with chronic kidney disease (CKD) has been associated with an increase in 90% in the risk of developing related complications."
Impact on the Digestive System
Beyond the neurological effects and kidney damage, aluminum – as we know – has a foul taste in our mouth. These are constipation, hunger and nausea. More severe cases cause ulcers and mineral deficiencies.
These symptoms can unfortunately be easily forgotten or referred out for other reasons which means you keep on eating aluminium and this just exacerbates the problem. And this is yet another reason to be aware of bottled water potential for aluminum.
Aluminum Exposure and Children's Health
Exposure to aluminum is especially concerning in children and young adults. Their budding bodies are less immune to the metal’s toxic properties. For example, aluminum is known to hinder absorption of nutrients such as calcium and phosphorus, which are needed for bone development.
And because of the suspected neurological consequences, exposure during these pivotal developmental years might also impact cognitive and neurological function. It’s therefore particularly crucial that parents and carers know this bottled water danger.
- "According to recent reports, tap water in NYC typically contains less than 0.1 mg/L of aluminum, significantly lower than some bottled water brands, where levels can reach up to 1.0 mg/L."
- "The EPA’s maximum allowable limit for aluminum in drinking water is 0.2 mg/L, a level that is often exceeded by certain bottled water brands."
Aluminum in Bottled Water Vs. Tap Water
Not so much.’ Ironically, tap water sometimes has far less aluminium than bottled water. That’s partly because water companies in the city often have quality requirements and rules to comply with.
Conversely, bottled water providers are as variable in the sources and filtration systems they use. Having said that, remember that the amount of aluminum in both tap and bottled water varies drastically for many reasons. So be sure to choose based on local statistics and good water quality data.
Alternative Bottled Water Choices
You can never totally avoid aluminum, but there are better water alternatives than high-aluminum bottled water. The first is that you can go for brands with less aluminum. Check the company’s water quality report or you can just ask them for information.
Bottled water made from glass is another great option. Not only does glass not rust or discolor, it’s also recyclable and cleaner than plastic. Remember that you’re always best off being educated and selecting on reputable sources.
Over 50% of consumers say they prefer bottled water in glass containers to avoid contaminants like aluminum and plastics.
How Can We Effectively Minimize Our Exposure to Aluminum?
Reducing aluminum exposure is crucial for long-term health, especially for vulnerable groups such as children and individuals with kidney conditions. Fortunately, there are several practical steps you can take to minimize your aluminum intake:
Choose Aluminum-Free Bottled Water: Many bottled water brands use aluminum in their packaging or filtration systems. Opt for brands that use glass bottles or those that specifically label their water as aluminum-free. Glass is a safer alternative as it doesn’t leach any metals into the water.
Use Non-Aluminum Cookware: When cooking, avoid aluminum pots, pans, and foil, especially when preparing acidic foods like tomatoes, citrus, or vinegar, which can leach aluminum. Instead, choose cookware made from stainless steel, cast iron, or ceramic. These materials don’t interact with food and help prevent the buildup of aluminum in your system.
Check for Aluminum in Household Products: Aluminum is commonly found in a variety of household products, including cosmetics, antiperspirants, and processed foods. Look for aluminum-free labels on products like deodorants, toothpaste, and food packaging. Reducing exposure to aluminum in daily use products can be just as important as limiting it in drinking water.
Store Food Properly: Never store acidic foods in aluminum containers, as they can leach the metal into the food. Use stainless steel or glass containers for storing leftovers, particularly those containing tomatoes or citrus.
Regularly Test Your Water: Whether you use tap water, bottled water, or a home filtration system, always stay informed about the aluminum content in your drinking water. Having your water tested regularly ensures you’re aware of any aluminum levels, especially if you rely on bottled water, where levels can vary widely.
Minimize Exposure from Canned Foods: Many canned goods, particularly those in aluminum cans, contain aluminum as part of the lining. While the aluminum exposure from a single can is minimal, frequent consumption can accumulate. Opt for foods packaged in glass jars or cans lined with BPA-free alternatives.
Concerned About Aluminum in Your Tap Water?
If you suspect that your tap water might contain aluminum or you’re simply unsure about its quality, it’s time to take action. Regular testing can help identify aluminum levels and ensure your drinking water is safe for you and your family.
Contact us today to schedule a professional water test and get the peace of mind you deserve. Stay informed, stay safe, and protect your health with reliable water quality testing.
Shedule Your Test Now!
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