（一）主起男子阴气，常食之，消男子 疾。南方人多食之，传于北人。北人食之，倍
生诸病，更不宜矣。〔心·嘉〕
（二）瘦人，不可食之。〔心 〕
下气，久服瘦人。无此疾者，不可食。海岛之人爱食，为无好菜，只食此物。服久，病
亦不生。遂传说其功于北人。北人食之，病皆生，是水土不宜尔。〔证〕
下热气，多食胀人。若热气塞咽喉，煎汁饮之。此是海中之物，味犹有毒性。凡是海中
菜，所以有损人矣。〔证〕
冷，无毒。治鼻洪，吐血，淋疾∶以炙甘草并豉汁浓煎汤，旋呷。又，主五淋∶取一团
鸭子大，煮服之。又，水中细苔∶主天行病，心闷，捣绞汁服。〔嘉补〕
味咸，寒（一云温）。主痔，杀虫，及霍乱呕吐不止，煮汁服之。又，心腹烦闷者，冷
水研如泥，饮之即止。又，发诸疮疥，下一切丹石，杀诸药毒。不可多食，令人痿黄，少血色。
杀木蠹虫，内木孔中。但是海族之流，皆下丹石。〔嘉补〕
（一）（恶心）∶取 香华、叶煮服之。〔心〕
（二）国人重之，云有助阳道，用之未得其方法也。生捣茎叶汁一合，投热酒一合。服
之治卒肾气冲胁、如刀刺痛，喘息不得。亦甚理小肠气。〔证〕
(1) It can stimulate the Yang Qi of men; frequent consumption can eliminate certain diseases in men. People in the South often consume it, and this habit has been transmitted to people in the North. When people in the North consume it, various illnesses are doubled in incidence, making it even more unsuitable for them. [Xin · Jia]
(2) Emaciated individuals should not consume it. [Xin]
It directs Qi downward; long-term consumption causes emaciated individuals to become thinner. Those without this condition should not consume it. People on islands love to eat it because they lack other good vegetables and only eat this item. Long-term consumption prevents illness from arising. Consequently, rumors spread about its efficacy for people in the North. However, when people in the North consume it, illnesses arise; this is due to the incompatibility of water and soil environments. [Zheng]
It descends Heat Qi; excessive consumption causes abdominal distension. If Heat Qi obstructs the throat, decoct its juice and drink it. This is a marine plant, and its taste still carries toxicity. Therefore, all marine vegetables tend to be detrimental to humans. [Zheng]
Cold in nature, non-toxic. Treats epistaxis (nosebleed), hematemesis (vomiting blood), and Lin syndrome (dysuria): decoct roasted Licorice Root (Zhi Gancao) and fermented soybean juice (Chi Zhi) into a thick soup, sip slowly. Additionally, it treats the five types of Lin syndrome: take a piece the size of a duck egg, boil, and consume. Additionally, fine algae in water: treats epidemic febrile diseases (Tianxing Bing) and chest oppression, crush and squeeze out the juice for oral administration. [Jia Bu]
Salty in flavor, cold in nature (another theory states warm). Treats hemorrhoids, kills parasites, and stops persistent vomiting due to Huoluan (cholera-like disease); decoct and drink the juice. Additionally, for those with vexation and oppression in the heart and abdomen, grind with cold water into a paste and drink to stop symptoms. Additionally, it disperses various sores and scabies, expels Dan Shi toxins (mineral drug residues), and neutralizes various drug poisons. Do not consume excessively, as it causes sallow complexion and reduced blood color. It kills wood-boring insects by placing it inside wood holes. All marine creatures have the ability to descend Dan Shi toxins. [Jia Bu]
(1) Nausea: decoct Xianghua (Fragrant Flower/Leaf) and leaves for consumption. [Xin]
(2) The local people value it, claiming it aids Yang function, but their methods of use are incorrect. Crush stems and leaves raw to obtain one he of juice, mix with one he of hot wine. Consuming it treats sudden Kidney Qi rushing to the hypochondrium, causing stabbing pain like a knife, and panting inability to lie flat. It also effectively regulates Xiao Chang Qi (Small Intestine Qi disorder). [Zheng]
When Dan Shi drugs act up, consuming the root is particularly beneficial. [Zheng]
It dissipates knotted Qi and treats Cold Qi in the heart and abdomen. Also known as Tu Bi Bo (Earth Piper). Bi Bo (Piper Longum) from Lingnan is especially effective for treating Stomach Qi disorders; it is also found in Bashu. [Zheng]