Aluminum exposure in food and water can pose several health risks. Chronic exposure may lead to cognitive dysfunction and Alzheimer's disease, although this link is still debated. It can also cause bone disease by leaching calcium, potentially leading to osteomalacia and osteoporosis. In the nervous system, aluminum can cause neurotoxicity, leading to symptoms like memory loss and impaired learning. Additionally, aluminum may accumulate in the brain, potentially contributing to neurodegenerative conditions. It's important to note that the extent of these risks can vary based on individual susceptibility and the level of exposure.