Hi all I haven't been on here for some time but popped in and woah some serious debate going on.
Cell etc is, in all honesty pretty low nutrition value but does catch a lot of fish due to highest available "food source" . you could apply any old toot and get a result.
As for the cell recipe, I shouldn't imagine it's much more than rapeseed meal, soya bean meal, micronised maize, copra meal, yeast and at a push some added lysine mega cheap and would work. Add a suitable angler friendly flavour, big names all over social media and voila, money machine.