My heart goes out to you as I work an ‘on my feet’ physical job too. (I work with plants-nursery/gardener.) I’m at the 2 week mark on the forum’s Strict Diet. What has helped me get through the work days was hard boiled eggs-I cut them into halves in the morning and threw them into a container with spices. They are very easy to eat quickly and ‘on the sly’ while working. I don’t love them but in halves it’s easy to get them down in just a couple of bites! Hang in there!