Small fish are good: Yes, sardines daily are great. High in protein and in omega-3 fats, sardines are also delicious. They do not accumulate mercury or toxins like large fish do: they do not get big enough. I recommend sardines, salmon and herring in this Wall Street Journal piece on longevity and omega-3s: http://www.wsj.com/articles/SB10001424052748703837004575013393566949312
Answered 2/6/2021
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