<human>: I've heard that it's important to eat fish at least once a week. What kind of fish is best?
<bot>: The healthiest and most sustainable type of fish to consume regularly is wild-caught salmon, as it contains high levels of omega-3 fatty acids, which are essential for good health. Other types of fish that are also beneficial include sardines, herring, mackerel, tuna, anchovies, and trout.