Is there a food that is cheap, delicious and healthy at the same time?

https://lemmy.world/post/461059

Is there a food that is cheap, delicious and healthy at the same time? - Lemmy.world

I have a theory that there is a impossible trinity (like in economics [https://en.wikipedia.org/wiki/Impossible_trinity]), where a food cannot be delicious, cheap and healthy at the same time. At maximum 2 of the 3 can be achieved. Is there any food that breaks this theory? [https://lemmy.world/pictrs/image/a523e85e-1280-4932-ae09-8b4b45cd7f4c.jpeg]

Tinned tuna. Inexpensive, high in protein and fish oils, low in fat and calories.

Probably not great in huge quantities because of iodine, but generally very healthy

Getting too much mercury seems like it would be more of a concern than too much iodine.
dunno about elsewhere, but the EU (and still be default the UK) has pretty strict regulations on mercury levels. In white tuna its a concern, but skipjack which is the bulk of canned tuna, its not an issue (if you are in the EU)