What sushi is best for weight loss?

Which types of sushi do you believe are best for weight loss? Is it sashimi, vegetables, or salmon and avocado rolls? My doctor recommended sashimi, but I have not tasted sushi yet. Can you propose any particular rolls or ingredients that will make meals light and nutritious?

Okay, this is new, never heard of this.

Hello, I believe Cucumber roll is a technical term. Anything sashimi with vegetables/salad.