Beware of aluminium and Teflon or non-stick cookware.
Use cast iron enamelled cookware like Le Creuset, or stainless steel cookware instead.
4:30 - Be careful not to use cast iron pans, as it could cause a build up of iron and create oxidative stress (and free radicals) in your body.
More on Cookware Safety Issues - MUST WATCH !
Non-stick pans have aluminium, fluoride and Teflon or equivalent.