It's good in terms of diet
Early start (get there 7.30) so skip breakfast
Busy throughout the day so either skip meals or just have a breakfast bar on the go to eat.
By the time you get home for dinner, I may end up eating the same unhealthy meals that I did in the past but you'll be exhausted that you'll go to sleep afterwards and hence nil temptation for snacking after dinner which has always been an issue for me.
Apparently weight loss suspicious of cancer is "if you are not dieting and you lose more than 5% of your normal weight in 1 month,"
Which I calculated is actually true for me although in my case of course this is a good thing. So this job has surprisingly been a great improvement in my physical health which I wasn't expecting.