These days, many health programs are known for their tantrums. Gamtae is a native seaweed distributed in Jeju Island and some southern coasts of Korea, and is rich in nutrients such as alginic acid and iodine potassium, as well as contains "Hukoidan" and "florotanin," which have been found to be effective in suppressing high blood pressure, antioxidants, and anti-inflammation. The original name of Gamtae is "Gashparae" and it is Galparae, which is between blue and cousin, but the strands are thinner, and they are eaten raw Gamtae Kimchi and Gamtaeji without boiling it with pollution-free seaweed in winter. Maesaengi are lumped together like moss, but Gamtae is clear from strand to strand like silk thread. Gamtae, which grows only in clean places, is also an indicator of the tidal flat environment, and it is said that if hydrochloric acid is sprayed at the seaweed farm, it disappears without a trace.