The current issue of Obesity Reviews has an article entitled “Low-carbohydrate diets and cardiovascular risk factors.” I haven’t read it but predict that the authors found lowered triglycerides, higher HDL cholesterol, unchanged or slightly higher LDL cholesterols, and lower blood pressures in those eating sufficiently low-carb. All these changes would tend to reduce risk of heart attack and cardiac death. The article’s not free but you can probably pick it up for $20-40 (USD).
Diabetic Mediterranean Diet 