More often than not, I talk with novice marathoners who assume they will lose weight once they start training for a marathon. After all, if they are running for miles and miles, how could they not lose weight???
Well, guess again, according to a study presented at the American College of Sports Medicine's Annual Meeting. In a survey of 64 participants in a three-month marathon-training program, only 11% of the runners lost weight and 11% actually gained weight. (The rest remained at a stable weight.) Of the 7 who gained weight, 6 were women. They got hungrier and ate more!
Among the entire group of runners, three-quarters of the women reported eating more while training, as compared to only half of the men. It seems that Nature works hard to defend women from losing weight! After all, in terms of evolution, a woman’s job is to be fertile.
Hence, if you are a woman who decides to run a marathon, be sure the primary goal of your training is to improve your endurance, not to lose weight. If you want to do both, you have to carefully manage your appetite. All too often, marathoners can convince themselves they deserve to eat several extra cookies because they just ran a few miles…