Aluminum is a naturally occurring element that can be found in small amounts in various foods, water, and air. While it's not considered an essential nutrient, it's also not inherently harmful in small quantities. However, excessive exposure to aluminum has been linked to potential health concerns. Some studies suggest that high levels of aluminum might contribute to neurological disorders, particularly Alzheimer's disease, although the evidence is not conclusive. Aluminum can also cause digestive issues and bone disorders if ingested in large amounts. It's important to note that the human body does not absorb aluminum efficiently, and most ingested aluminum is excreted without issue. However, it's always advisable to minimize exposure to high levels of aluminum, especially for vulnerable populations such as infants and those with kidney issues.