Table 1.

The main species and distribution of brown algae with protective effects on the intestine.

Genus	Species	Distribution	References
Ecklonia	Ecklonia radiata, Ecklonia cava	Distributed in Australia, Korea, China and other countries, in China mainly in Liaodong, Shandong, Zhejiang, Fujian Province.	[19,20,21]
Sargassum	Sargassum fusiforme, Sargassum plagiophyllum, Sargassum thunbergii	Asian countries are more widely distributed, widely distributed in Fujian Province, Zhejiang Province, China, Korea, Japan.	[22,23,24,25]
Laminaria	Laminaria japonica	It is mainly distributed in the northwestern Pacific Ocean. Widely distributed in Japan, Russia, China and other countries.	[26,27]
Ascophyllum	Ascophyllum nodosum	Distributed in the coastal waters of the North Atlantic Ocean, such as Canada, Norway, Ireland, the United Kingdom, France and other countries.	[28,29]
Fucus	Fucus vesiculosus	Mostly found in tropical and subtropical seas.	[30,31]
Undaria	Undaria pinnatifida	Mainly in the northwest coast of the North Pacific Ocean, native to China, Japan and the Korean Peninsula.	[32,33]
Macrocystis	Macrocystis pyrifera	Mainly distributed along the eastern Pacific coast.	[34,35]