Just recently, a long-time patient of mine brought me a copy of an article on salt and asked me to read it. The article, entitled “Health advice takes a pinch of salt” was from a publication named The Costco Connection that I had never heard of or seen before.
My patient told me that reading the article felt to him like listening to me talk, and he was sure that I would enjoy it as well. As it turns out I did. I found the article well-written and well-referenced, and it reminded me of a similar article I had read just a few months earlier in the New York Times.
The point of the article was that salt is widely believed among medical professionals and the public at large to cause high blood pressure, which then leads to heart attacks, stroke, and other cardiovascular ailments.
However, the link between salt consumption and high blood pressure has never been proved conclusively. The belief that there is such a link stems more from medical bias than scientific evidence. It is true that an observational study published in 1972 showed that among populations that used little added salt in their food high blood pressure was rare. One minor detail that was overlooked was that these same populations also did not eat sugar or processed food – two far more likely culprits in my opinion, than salt. Read More »