Second week of marathon training

Looking back on my first marathon buildup, on July 3, 2007, my first workout of my second week of marathon training, I was between 5 and 8 pounds heavier than I am now at the same point in my second marathon buildup. I'm also completely vegan now. I don't know how this will affect my training, but I can already tell that I will need to consume more calories during the day. My habit is to back-load my day. I always eat some semblance of a breakfast, scant little for lunch, and the lion's share of my calories for dinner. This has not translated into my best performances. Maybe more moujadra from Mamoun's will do the trick.