I think with your goals in mind we need to really time food around training as well.Yeah man that's what I've done. Eating minimum 230g protein p/d now. I go for a 5km (3.1 miles) walk about 5 days a week, most of my cardio is done on the job site though. I'm a climbing Arborist and I average about 15k steps per day (excluding my afternoon walks), even when I'm in the tree for nearly the entire day. I used to go for runs and do higher intensity cardio sessions, but I've found that I keep just as fit just through my work.
And you have active cardio job, you need to increase protein and carbs.