Since air fryers are comparatively recent kitchen equipment, it has not been well investigated whether using foil in them renders them extra dangerous. According to research and studies, aluminum foil is hazardous, and prolonged exposure to it might be bad for your health. For instance, excessive aluminum foil use has been connected to Alzheimer's.  However, the quantity of aluminum we consume from food is negligible and is not regarded as dangerous. However, others claim that using aluminum foil increases the quantity of metal in your diet.  Thus, aluminum foil is not very harmful, but its usage can result in a higher intake of metal through food.