Well, that wasn't the headline, but it should have been. An article I read today said that foods rich in potassium may cut the risk of heart disease and stroke. For those of you who don't know, potassium is what carries the electrical signals from your brain to your heart. I know this because low potassium, and because of that, sinus arrhythmia, run in my family.
When I ate the standard American diet, I used to get irregular heartbeat all the time. It's very upsetting, and once I wound up in the emergency room because I thought something was seriously wrong with my heart. They had me hooked up to an EKG and took blood and informed me that my potassium was low. The doctor told me to eat a banana.
Well, that's BS really. Bananas don't have much potassium in them. Potatoes have more, but they're not good for you either.
You know what has a lot of potassium in it? Meat. An 8oz steak has 850mg of potassium or about 25% of your recommended daily intake. Since eating low carb and trying to keep my food paleo friendly, I haven't had any problems with my potassium level, no sinus arrhythmia. Another thing that might help besides an increased intake in potassium, is that without elevated glucose and therefore elevated insulin levels my body may use the potassium more efficiently. I read somewhere that insulin interferes with the uptake of Vitamin C, and that raised glucose levels do as well (though which it is, is difficult to untangle since increased glucose leads to increased insulin). It stands to reason that glucose/insulin may interfere with other biological function too.
Of course, the press can't tell you to eat more meat, because that flies in the face of what they're advocating, which is a vegetarian (or better yet vegan) diet devoid of essential fatty and amino acids. Why are they advocating it? One could speculate, but what difference would it make?