What did your nutrition look like when you’re breastfeeding + working out

First time mom here planning on exclusively breastfeeding when baby arrives in just a few weeks…

Getting back into exercise will be priority # 1 for my own mental/physical health once I’m cleared to do so. I’m curious how you approached nursing and nutrition while being active? For medical reasons I had to stop exercising so I’m rebuilding my baseline for both activity/food.

Any advice/insight appreciated!