The study showed no benefit specifically in patients with chronic heart failure (functional class 2-3). Here’s what that means:
Class II—Mild symptoms (mild shortness of breath and/or angina) and slight limitation during ordinary activity.
Class III—Marked limitation in activity due to symptoms, even during less-than-ordinary activity, e.g. walking short distances (20—100 m). Comfortable only at rest.
I’m no expert on hypertension and sodium intake, but here’s a review about salt and hypertension (i.e. in pre-heart-failure), including an evolutionary biology angle.
Personally, I would be careful about extrapolating this study’s results to other functional classes. Could be that low sodium diets are mostly effective as a preventative, or that they still matter in advanced heart disease, or in other diseases such as kidney failure.
But good to see evidence relevant to these specific diagnoses.
The study showed no benefit specifically in patients with chronic heart failure (functional class 2-3). Here’s what that means:
I’m no expert on hypertension and sodium intake, but here’s a review about salt and hypertension (i.e. in pre-heart-failure), including an evolutionary biology angle.
Personally, I would be careful about extrapolating this study’s results to other functional classes. Could be that low sodium diets are mostly effective as a preventative, or that they still matter in advanced heart disease, or in other diseases such as kidney failure.
But good to see evidence relevant to these specific diagnoses.