什么是3nB?
3nB为芹菜所特有。它赋予芹菜特殊的味道和香气。它的发现源于一位芝加哥大学医学中心研究员的父亲的亲身经历：吃芹菜降血压。这位研究员所在的课题组继而研究发现3nB是这种作用的活性成分。之后研究还发现，3nB不仅能降血压还能缓解关节炎相关的炎症狀。动物实验发现对高血压动物，少量的3nB能降低12％-14％血压，胆固醇水平也降低了7％。
3nB如何降低血壓?
3nB之所以能降血压，是因为它能够影响前列腺素的生成并对大脑控制血管阻力的部位有影响，从而既有利尿剂的作用，又有血管扩张及的作用。这样，3nB既能减少血管内的液体量，又能扩张血管而增加血管的管径。其血管扩张的作用机理类似于钙通道阻滞剂。即通过抑制血管平滑肌上的钙离子通道，而减少钙流，从而使平滑肌放松。血液对血管壁的张力降低后，血压也就降低了。值得指出的是，3nB并不影响骨骼钙的平衡。体外实验和动物实验已正是，3nB还有降低胆固醇、抑制动脉斑块形成的作用。因此3nB还可通过增加血管弹性来降压。
用芹菜籽萃取物来降血压有何好处呢？安全是其首要好处。多数化学合成的利尿剂在降压的同时会带来很严重的副作用。最常见的就是血钠、血钾等电解质失常。如果用芹菜籽萃取物来利尿就会避免这些副作用。
降压的同时保护大脑血流是芹菜籽萃取物的另一大优势。服用降压药的人常会出现疲倦、郁闷、眩晕和健忘等不适。原因是很多降压药在降血压的同时减少大脑的血流。动物试验已证明，服用芹菜籽萃取物则能保持脑血流而防止中风。其增加脑循环保护大脑和改进能量代谢作用类似于银杏提取物。还有研究发现其对中风后的神经损伤有益处。
Natural Factors的芹菜籽萃取胶囊，是您可以信赖的天然降血压产品，安全有效且无副作用。
芹菜(籽)|75mg
非药用成分：
大米淀粉，素食胶囊（糖胶[纤维素]，纯净水），植物级硬脂酸镁（润滑剂）。
每次4粒，每天3次，或者遵照医药专业人士的指导服用。仅推荐短期使用。
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