> In another poster, the copy reads “The entire fish is salmon.” This is straightforward copy reminding readers that salmon is delicious head to tail, so all of it should be eaten.

I heard once that some steaks sold are actually separate pieces of meat glued together and made to look like a natural steak. Maybe this happens with fish as well. Wouldn't "the entire fish is salmon" be referring to that there's no pieces of other fish glued to the fillet? I mean, perhaps there's a legal technicality where it's permissible to sell a product as salmon when at least 10% is actual salmon or so.

It's kind of like how all those sweeteners sold as being stevia are actually only like 1 or 2% stevia.