Fish is well known as brain food, and mackerel is no exception. Amongst their other talents (fighting cancers, improving mobility, promoting heart health) the high level of Omega-3 fatty acids in mackerel play a vital role in brain and nerve development. And as well as being an excellent protein source, mackerel provides a good dose of vitamins (A, B6, B12, C, D, E and K) and minerals (including calcium, iron, magnesium and selenium). The NHS recommends at least one portion of oily fish per week. So we prescribe a tender, tasty piece of mackerel.