There are concerns about the health risks associated with using aluminum coils, particularly in cooking. Aluminum can leach into food when heated, and excessive intake may lead to cognitive impairment and neurological issues. However, the risk is generally considered low with normal usage. It's important to follow proper cooking practices and use utensils that are not reactive with aluminum to minimize exposure. For those with concerns, alternatives like stainless steel or cast iron can be used to reduce potential health risks.