There are some concerns about using aluminum cookware due to the potential for aluminum to leach into food, especially at high temperatures or in acidic environments. While the human body needs small amounts of aluminum, excessive intake can be harmful. It has been linked to neurological disorders, although the evidence is not conclusive. Most health organizations, including the FDA, consider aluminum cookware safe for general use. However, for those who are concerned, alternatives like stainless steel, cast iron, or non-stick coatings are available. It's always best to follow manufacturer's guidelines and avoid using aluminum cookware for acidic or highly acidic foods to minimize any potential risk.