It's recommended to limit your salt intake to less than 5 grams per day.

建议将盐的摄入量限制在每天5克以下。

So maybe you're thinking it's time to start cutting back on your salt intake.

所以，也许你在想是时候开始减少盐分的摄入了。

A massive proportion of salt intake adversely affects the heart and kidney, which could ultimately be fatal.

大量摄入盐会对心脏和肾脏造成不利影响，最终可能会致命。

The study found that potassium-rich diets were associated with lower blood pressure, particularly in women with high salt intake.

研究发现，高钾饮食有助降低血压，尤其是在高盐饮食的女性群体中。

Meaning a lot of that salt has no effect on taste—but a big effect on our daily salt intake.

这表明还有很多盐分并没有对味觉起到应有作用—但却大大影响了我们日常的盐分摄入量。

Dietary salt intake used to be far higher than it is now, mainly out of necessity.

以往饮食中的盐摄入量远高于现在，这主要是因为确实有此必要。

Now, there are still several points about specifically why lowering salt intake stresses the body, contrary to conventional health advice.

关于为什么降低盐的摄入量会给身体带来压力，还有几点需要提及，而且这些观点都和传统的健康建议相反。

American dietary guidelines, by the way, advise people to limit their daily salt intake to a maximum of only 5.75 grams.

顺便提一下，美国膳食指南建议人们每天盐的摄入量最多不得超过 5.75 克。

But, as I mentioned earlier, this renin angiotensin aldosterone system is stimulated by low salt intake.

但是，正如我之前提到的，低盐饮食会导致 RAA 系统活跃。

As the paper says, " The data suggest that a physiological mechanism for increasing salt intake may develop during pregnancy."

正如这篇论文所说，“数据表明，一种增加摄入量的生理机制可能在怀孕期间形成。”

Another study shows that when salt intake drops below 1.5 teaspoons per day, a significant increase in renin and aldosterone occurs.

另一项研究显示，当盐摄入量降至每天 1.5 茶匙以下，人体中的醛固酮及肾素水平将大幅上升。

When the association was analyzed according to salt intake, the relationship between potassium and blood pressure was only observed in women with high sodium intake.

当分析盐摄入量与两者关系时，钾对血压的影响仅在钠摄入量高的女性中能观察到。

So, salt intake is " still" high according to health guidelines, but this doesn't explain how hypertension keeps going up while salt consumption stays steady.

按照健康指南的标准，盐的摄入量“仍然”很高，但这并没有解释清楚，为什么盐的摄入量在保持稳定的情况下，高血压率却持续上升。

Sato added that if Japanese people try to reduce salt intake in the usual ways, they will need to cut many of their favorite foods from their diet.

佐藤爱还说，如果日本人试图以通常的方式减少盐的摄入量，他们将需要从饮食中减少许多他们最喜欢的食物。

In his very thorough book " The Salt Fix, " Dr. DiNicolantonio makes the case that reducing salt intake is not only unnecessary but potentially harmful to health.

在其著作《盐疗》中，DiNicolantonio 博士指出，减少盐的摄入量不仅没有必要，而且可能对健康有害。

So, if low sodium stresses the body, how did the idea that lowering salt intake is good for blood pressure to come up?

那么，如果低盐饮食会对身体造成压力，那么降低盐摄入量降低血压的想法是如何产生的呢？

So, despite this historically low and steady salt intake, prevalence of hypertension is now three times as high as it was in the first half of the 1900s.

因此，尽管盐的摄入量处于历史低位且稳定不变，但现在高血压的患病率却是 20 世纪上半叶的三倍。

And, as Dr. James DiNicolantonio points out: " you could swap out Korea for any one of thirteen other countries and get a lot more 'paradoxes' regarding high salt intakes."

而且，正如 James DiNicolantonio 博士指出的：“你可以把韩国换成另外 13 个国家中的任何一个，就高盐摄入量而言，你会得到更多的‘悖论’。”

As James DiNicolantonio points out in the Salt Fix, blood pressure increase with a high salt intake can often be explained by a potassium deficiency.

正如 James DiNicolantonio 在《盐疗》一书中所指出的，高盐摄入会导致血压升高，这通常是因为却钾。

" The relationship between potassium and cardiovascular events was the same regardless of salt intake, suggesting that potassium has other ways of protecting the heart on top of increasing sodium excretion."

“无论摄入多少盐，钾与心血管疾病之间的关系都是相同的，这表明钾除了促进钠的代谢外，还有其他保护心脏的方法。”