There are three main groups of seaweed: Brown algae include kombu, also known as kelp ... eaten on its own or used as a plant-based bacon substitute as in the Winter Slaw with Dulse Bacon Bits.
My grandfather always had some chewy kombu candy on hand ... For example, if I wanted to substitute gelatin in my cooking, I'll use kanten seaweed to make savory and sweet vegan jello with ...