 How much aluminum is in your drinking water? It's hard to tell, but in a 15-year study on French elderly men and women, regular consumption of tap water was associated with aluminum toxicity and increased prevalence of dementia. How might the accumulation of aluminum from just tap water alone affect your cognitive ability as you age? In the 15 years of study, researchers found out that dietary aluminum from water sources could be a risk factor for developing dementia. They also found a helpful solution. They found that the mineral silica could help decrease the risk of aluminum-induced dementia in elderly patients. A 2009 report from the American Journal of Epidemiology details this 15-year study from France. The study followed the lives of 1,925 elderly patients between the years 1988 and 2003. All of the elderly men and women were selected from 91 different municipalities with different water sources in southern France. Their aluminum intake levels were studied, from water and other sources, as the researchers investigated the metal's role in bringing about dementia throughout the 15-year period. During that time, the researchers also investigated the impact of silica in reducing participants' risk of dementia. Aluminum from drinking water increased dementia in 15-year study Of the nearly 2,000 elderly studied, none showed any signs of dementia beginning in 1988. The researchers ruled out environmental aluminum intake factors during the study and focused solely on aluminum intake from water. The participants' daily consumption of tap and bottled water was recorded. Reliable water assessment data was analyzed. In the study, aluminum consumption greater than or equal to 0.1 mg per day from drinking water was correlated with declining cognitive ability. Over the years, the accumulation of aluminum inflicted negative mental effects, welcoming dementia in what was once a mentally healthy group of elderly adults. Using the scientific Cox model, the researchers found that highest exposure to aluminum may be a risk factor for full-blown dementia. Hoping to the help the participants, the researchers looked further and assessed silica intake for its ability to reduce dementia. What they discovered was that when participants increased their silica intake by 10 mg/day, incidences of dementia subsided. The change was drastic. This discovery coincides with the expert analysis of Dr. Chris Exley, PhD. Doctor recommends silica to help those affected by aluminum from vaccines At a January 2011 vaccine safety conference in Jamaica, Dr. Exley talked about ways to reduce the toxic effects of aluminum in the body. He talked about the importance of silica and mentioned two brands of silica-enhanced water, Volvic and Spritzer. After conducting several urine tests, Exley and his team of researchers proved that high-silica mineral waters help remove aluminum from the body. In a presentation involving victims of Gardasil's adverse reactions, Exley showed how silica improved the damages caused by aluminum-laced vaccines. Based off 20 years of study, Dr. Exley recommends drinking a liter of silica-rich water daily to reduce the burden of accumulated aluminum in the body. Sources of silica Thankfully, silica mineral water isn't the only place to obtain this important mineral. According to the 1993 book Silica: The Forgotten Nutrient , by Klaus Kaufmann, silica can be found primarily in the following foods (Silica content is measured in mg.): 