So I have decided to start with a slow lean bulk to last me through the whole year (gaining maybe 20lbs or so). I seem to be hitting the right surplus to fill my weight gain goal currently by eating 2600 and not counting as closely on weekends (so I can participate in social events).
However, I have a family member running a half marathon and I REALLY wanted to join because I’d never done that before. So over the next few months I’ll be training for a marathon as well, which requires more running. I will still be able to lift 4 days a week (with 3 running days). But my question is—how do I make sure that the increased cardio doesn’t stall me or (heaven forbid) even make me LOSE WEIGHT. I know that it’s all calories in and calories out, but should I increase calories now before the progressive cardio training takes full effect? Or should I increase as I go so that I don’t over estimate my burn m. My cardio program is progressive training so I will be running greater distances at the end compared to now...so obviously the calories burn will increase incrementally. I just don’t want to miss out on training for this but also really really want to make sure my weight doesn’t go down and I lose muscle.