Cutting two teaspoons of salt’s worth of sodium from one’s daily diet can significantly improve lung function in asthmatics In the 1960s and 1970s, a mystery was emerging . Why were childhood asthma rates between 2 to 5 percent in the developed world but as low as 0.007 percent in the developing world? For example, in the developing world, instead of 1 in 20 kids affected, or even 1 in 50 kids, it could be more like 1 in 10,000 kids—extremely rare. And, when kids moved from a low-risk area to a high-risk area, their risk went up. What was going on? Were they exposed to something new? Did they leave some protective factor behind? As I discuss in my video How to Treat Asthma with a Low-Salt Diet , all the way back in 1938, scientists showed they could stop asthma attacks by lowering children’s sodium levels. That was done with a diuretic drug, but subsequent dietary experiments showed that diets high in salt seemed to increase asthmatic symptoms, while “lowering the salt decreased th...
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