Whether sushi is a truly healthy food is up for debate. Some reports say sushi is a good choice for health. But, like most foods, the way sushi is prepared can certainly spike up the calories. And as for the potential mercury issues with sushi? Just ask Jeremy Piven.

But there's no debate over the nutritional quality of seaweed (or nori). It's a good source of magnesium and potassium and is very low-calorie. "Glamour" has an idea for making your own sushi-like roll with nori, brown rice (which is decidedly non-sushi material, but way more nutritious than white sticky rice), and sliced veggies. Sounds yummy to me!