To my mind the most frequently overlooked cause of Cancer and a host of other serious diseases is the toxic effect of cooking food in Aluminium pans/foil add on the use of Alum as a water treatment by water companies and the drip drip absorption of a highly toxic metal over the course of years ends up in cancer etc

Theres an old book called

Aluminium Utensils and Disease
Fiorgotten its Author but it spells out the dangers