Hey, I wanted to mention this because nobody mentioned it. I've found a correlation between heated fat intake and heart arrhythmias. Once I realised that I stopped eating anything fried basically. Right now I can virtually cause and avoid arrhythmias by consuming heated fat. What is interesting though is that when I prepare the sauce with oil, but I mix it with other stuff like tomato sauce from the beginning, I don't get arrhythmias. My theory is that the oil doesn't get heated much (above 100 degrees C) as it is mixed with water from the tomato sauce and therefore does not produce some harmful chemicals. I also read that heated fat is bad in the book "the big fat surprise." If you've never paid attention to this I would recommend doing so, let me know if you find a correlation.