I’ve been wanting to add a keto-friendly food into my diet that’s high in electrolytes. Someone talked about sardines and mackerel and I found myself searching for a comparison between the two.
Happened on a site that is very cool - foodstruct.com. They have in-depth nutritional info on various foods and some good search tools (list foods high in fat, for example). Anyway, here was my comparison - I decided to pick up some mackerel: https://foodstruct.com/compare/fish-mackerel-salted-vs-fish-sardine-atlantic-cannedinoil-drainedsolidswithbone
(Dang, sounds like I’m pimping for the site. Honestly, I’m not affiliated - just impressed with it and trying to help others.)