Dulse, AGAR, Nori, and BEET are all types of coarse edible red seaweed. Dulse is a type of seaweed that grows in the North Atlantic and North Pacific oceans and is usually eaten dried or cooked. AGAR is a gelatinous substance derived from red algae and is used as a thickening agent in many foods. Nori is a type of seaweed that is commonly used to wrap sushi rolls and is also eaten as a snack. BEET is a type of seaweed that is often used as a garnish or as an ingredient in salads. All of these types of seaweed are high in minerals and vitamins and can be a healthy addition to any diet.