I seem to have enough energy to run but notice when I work out (c25k being the cardio portion of my workout), that I am really hungry afterwards for a while. I didn't know if other low carbers had experienced this. I'm not used to being hungry on Atkins. I lost a lot of weight over the past year by diet alone without working out. My weight loss stalled so I joined a gym. Ramping up my fitness to try to get off this plateau but just finding myself eating more because I'm so hungry after working out, even though I eat my regular meals before I go to the gym.