[mamon]

...or aluminum cans for drinks and tinned meat? although those seem to have other metal covering them on the inside.

[paulmd]

Food/beverage cans are usually coated with BPA to prevent aluminum contamination.

Mmmmmm, yummy.

[mywittyname]

...Or aluminum in double-acting baking powders.

The other listed sources require leeching of already bound aluminum, but with baking soda, we are flat out eating 100% of it and it's already oxidized. Sodium aluminum phosphate is also used in cheese making.