Choose cans that are BPA-free, if you eat canned food. I like canned S&W Organic Black Beans. Written on each can: 'Non-BPA can lining.' Other BPA-free brands are Eden, Muir Glen, Native Forest, Natural Value and almost all cans at Trader Joe's.
Or buy food in glass containers.
Interesting article by Dr. Mercola on BPA is at https://articles.mercola.com/sites/articles/archive/2015/03/25/health-risks-bpa.aspx.