David Protein is now selling frozen cod fillets. David Protein, which sells a line of popular high-protein snack bars (and claims it has more protein per calorie than any bar on the market), now sells something with even more protein — cod. David Protein's wild-caught Pacific cod is sourced from a sustainable fishing company, according to the company. It sells in a four-pack for $55 online and is marketed as having "slightly more protein per calorie than a David bar." Keagan Tigges, chief of staff at David, told National Fisherman that the price "reflects direct, traceable sourcing and peak freshness."