Has nothing to do with cycling (directly). The full moon in March has come and gone (barely) and it is now time to get serious about losing weight. I have independently come to the conclusion that between the full moons in October and March, any attempt at serious weight loss is thwarted. When folks question my veracity, I refer them to studies regarding the need of our ancestors (like, cavemen) to put on weight for the lean, winter months. I try to sound like I'm a true believer, but in actuality it is more like "this sounds good, so I'll go with it until something better comes along."
It's not like I have a lot of weight to lose. Ten pounds, max. Five to seven is quite sufficient. This shows up in cycling, particularly in steep climbs. I can't tell if it helps in racing; it probably does, but I haven't been able to distinguish between being in better shape by training and dropping a few pounds. Recreational rides make no difference.
So, if you are casting about for some reason to start losing weight, hang on to the paleolithic theory and get serious about your diet. BTW, check out my Dec 2008 post Scaling Back, and various updates in 2009.