With sushi, it is all about balance. Sometimes they cut the fish too thick, sometimes too thin. Often the rice is overcooked or undercooked. Not enough rice vinegar or too much.

When I'm dining out privately, I tend to avoid fine-dining venues; I like things to feel casual.

Large fish such as tuna are shown already cut into fillets and bought by the block. Fillets should be almost transparent. Avoid tuna that looks rainbow-colored or black.

Whenever possible, buy a fish whole. With tuna, this isn't practical; with smaller fish, it is.

I exercise every morning, no matter what. Sometimes it's tough to do right when you get off the plane, but after ten minutes you start sweating, and you always feel better.