About three weeks ago, I decided it was time to get my lard butt out of the computer chair and start exercising again. I've been swimming three times a week in the mornings before work. I have gotten myself up to about 150m at a moderate pace before I start feeling winded at all, and this morning I swam 750m total in about 15-20 minutes. My general energy level is higher and my day actually seems to go more quickly. All this is good. Here's the but... I am hungry all the time. Before I started, I generally ate one fairly large meal at lunchtime and then (most of the time) a smaller meal at dinner. Occasionally, the sizes switched. Occasionally, I just had one large meal. I generally don't eat unless I'm hungry which is why I wasn't in horrible shape even after almost a decade of a sedentary existance. Now I need to bring a breakfast bar and a piece of fruit with me for after I get out of the pool. My stomach starts rumbling two hours later. I eat a large lunch. My stomach starts rumbling two hours later. I eat a snack. My stomach starts rumbling an hour or so later. I eat a large dinner. I usually need a snack before I go to bed as well... Ultimately, I'd like to shrink my waistline down a little, but I'd be happy with just having more energy. I'm really getting worried that I'm going to end up putting on weight because of the eating. Has anyone experienced this? Should I be doing something differently, or will my metabolism even out?