The menu items were the same for each participant, Dr. Bray said, but a participant on the low-protein diet would have gotten more mayonnaise and less tuna in a tuna fish salad, while the high-protein diet was extra tuna with little mayonnaise.

WSJ: New Ways Calories Can Add Up to Weight Gain

The frontline worker, whether he is making cars, solar panels, or wasabi-crusted ahi tuna, now generates unprecedented value but receives little of the wealth he is creating.

NEWYORKER: Big Med

Chefs suggest tuna should be enjoyed rare but some folks are still a little squeamish about eating raw fish.

CNN: Tuna making a splash in popularity