MSNBC publishes some good commonsense articles on fitness and dietary health. Here is another one the series. It has one of the better comparisons of various (bad) modern dieting trends I've seen recently, and includes a very readable pitch for eating fewer calories. As we should all know by now, calorie restriction is the only current method of healthy life extension proven beyond a doubt by medical researchers. You should certainly look into trying it as a part of your efforts to lead a longer, healthier life.