If you want to make it more authentic, you can grind them yourself. If you don't have a sesame grinder, you can use a pestle and mortar to crush them. It doesn't matter what kind of seaweed you use, you'll still have a satisfying salad that is low in sodium.
This website provides approximate nutrition information for convenience and as a courtesy only. Nutrition data is gathered primarily from the Spoonacular Database, whenever available, or otherwise other online calculators.