You need to get on the fish train, dude.
"Mackerel is a nutrient-rich oily fish with numerous health benefits. It's an excellent source of protein, omega-3 fatty acids, and various vitamins and minerals like vitamin B12, vitamin D, and selenium. These nutrients contribute to heart health, brain function, and overall well-being."
Canned mackerel is in every Lidl store.
I think it's the same product that we get in Denmark, imported to the US.
Eating three small cans of this on bread per week, will drastically improve your well-being.
It's slightly more expensive in the US than in Denmark due to import taxes and so on, but it's well worth it.