If you haven’t tried canned sardines in a while, you may want to rethink that decision! The American Heart Association recommends at least two servings a week of fatty, oily fish like sardines, mackerel, tuna or salmon and for good reason!Canned sardines are not only delicious, but one of the most nutrient-dense fish one can consume. Rich in inflammation fighting omega-3 fatty acids, vitamin B12 and selenium, sardines also provide a rare natural source of vitamin D. Because sardines are low lying fish that eat plankton, they are sustainable and don’t carry the toxins and heavy metals that many other fish do.