盐

要少吃盐。

这个观念流行了很多年了，家里还有多年前政府发的小勺，用来控制烹饪中的盐量。

但是我从来没有系统梳理过关于盐致病的研究和数据。只是有时候会疑惑，这个结论的出发点可靠吗？研究严谨吗？有后续研究跟进吗？

最近看到一本书：The Salt Fix，对我的疑惑作了解答。我虽然不能肯定他都对，但是我欣赏其求证态度。不仅有科学健康的意义，还有启迪心智，开阔视野的作用。

抄几段：

The truth is, our most hallowed health institutions cling to outdated, disproven theories about salt—and their resistance to the truth is putting our public health at risk. Until the low-salt dogma is successfully challenged, we'll be stuck in this same perpetual loop that keeps our bodies salt-deprived, sugar-addicted, and ultimately deficient in many critical nutrients.

Your body has been talking to you, and it’s time to listen. The good news is, you probably don’t need to cut down. In fact, you may need even more salt. Instead of ignoring your salt cravings, you should give in to them—they are guiding you to better health.

I'll examine the forces behind this stubborn refusal to accept the truth—and prove that the time for adherence to this long-outdated dogma has come to an end. We need to recognize that science has moved on, and our dietary guidelines need to move on as well.

网上抄来抄去的观点不可靠，不仅过时，还可能有害。

本书出版于2017年，我去年拿到，今年十一长假看的，应该早看的。

本书作者是心血管专家，也是营养学家。