I came across this on an article from The Guardian newspaper, titled "What Doctors won't do themselves." One of the items was eat a low-carb, high-protein diet. An excerpt follows:

"I would never go on a low-carbohydrate, high-protein diet like Atkins, Dukan or Cambridge. Why? Because although you will probably lose weight, they may kill you. Don't take my word for it – read about the 43,396 Swedish women followed for an average of 15 years. Those who stuck to low carbs and high protein had a rising risk of dying from heart attacks and strokes, depending on how strict they were and for how long they endured them. There was a staggering 62% higher risk of such illnesses among the women eating the strictest diet over those who ate normally. Eating is for enjoyment; these diets turn food into medication, and it's patently the wrong medicine – it is often lethal."
Tom Smith, GP

Here is the link to the study:

Low carbohydrate-high protein diet and incidence of cardiovascular diseases in Swedish women: prospective cohort study | BMJ

I read through it and it seems like a well done study with reasonable definitions for low-carb and high-protein. What do you guys think?