Aluminum coils themselves are generally considered safe and do not directly affect health when used in their typical applications such as construction, electrical components, or food packaging. However, there is ongoing debate about the potential health risks of aluminum exposure, particularly when ingested. Some studies suggest a link between aluminum and neurological disorders like Alzheimer's disease, though this is not conclusively proven. It's important to note that aluminum is a common element found naturally in the environment, and the human body can naturally excrete small amounts. The use of aluminum coils in food packaging is regulated to ensure safety, and the risk of aluminum toxicity from these sources is considered low.