Go to the seafood deli at a reputable grocery store and buy a large piece of farm raised salmon. (Not Wild caught). Get it home and put it in the freezer for at least 15 hours. Thaw in the fridge, mix up wasabe and soy sauce, slice pieces with a razor sharp knife and promptly enjoy salmon sashimi for 12 dollars.. You will be a lean mean fighting machine.
The "sushi grade" is nonsense.
Very good for you too.