Along with kelp, seaweed is also used as food for abalone, and in Korea, it is given to mothers as soup when they give birth or eaten on birthdays.
In the past, it was known as a precious food ingredient, but now it is a popular food that can be eaten commonly, and is sometimes used as a side dish for rice.

Seaweed from Gijang-gun, Busan Metropolitan City is well known for its good quality, and even now, it is an item sold by a food truck in rural areas such as mountain villages, taking advantage of the fact that it is difficult to obtain seafood.
Seaweed and kelp are seaweeds that belong to brown algae, and the white powder that appears on the surface of high-quality seaweed is a substance that comes out when dried, and is part of the seaweed. It is not harmful to the human body at all when consumed, and it is said to be an excellent product that has been properly dried.

There are not many countries on earth that consume seaweed, and it is often avoided by people from other countries due to its slippery texture.
Beef and seaweed go well together (in Korean, they are said to go well together), and are representative dishes made into a soup that can be called a stew.
Or, lightly blanched and eaten with soy sauce, or today, at a sashimi restaurant, a type of seafood called gwamegi is wrapped in seaweed and eaten like a wrap.
When eating seaweed as food, it is also a food that has a jinx of not eating it when taking a test because it is slippery, and in Korea, saying that you have eaten seaweed soup refers to failing an exam.
Along with laver (haetae), it is considered a seaweed, and contains a lot of iodine, so it is related to hyperthyroidism caused by thyroxine.
Sometimes, the expression “washing seaweed in the summer” is used, but if you look at modern and contemporary Korean literature, the expression “washing seaweed (myeong) by the stream” occasionally appears, but it has nothing to do with seaweed, and the “myeong” (myeong) here is an old word meaning above the shoulders, and it is said to mean playing in water such as a river or lake, so it is not the act of washing seaweed stems in the stream.