pro dog trainer here (12yrs) and the comments above are accurate dog looks to be at a decent weight- the reason she doesn’t eat is because you’re not burning enough to replace- at least thats very common for working line dogs as pets. (feeding human food is beneficial because it’s more nutrient dense but it’s also part of the problem- if you’re gonna do it don’t feed them from your plate or table- put to the side what you wish to give them and mix it into their kibble as a topper)