I've never been overweight per se, but I generally gain 5 to 7 lbs. over the winter. I usually ride alone, and once I start up in March/April it takes a couple of months to kick in but by late June to September I whittle the weight off so, that I have to be very careful not to drop too much and I have to be careful to eat enough and properly. That's just my metablolism. And I don't train - I only ride 3 or 4 times a week and maybe 100 miles/week or less. Historically I've dropped weight so that I didn't have periods during July, August, and Sept. Now I don't have periods occasionally due to the big M. Interestingly, along about November and on, my weight usually drops, despite eating more portions of winter comfort food and not being as active. I'm convinced that my muscle is merely turning to fat and I weigh less. When we have a good winter with a lot of snow for xc skiing, then I weigh more.