No, many moons ago I worked somewhere that sold Bil Jac so I know the line pretty well.......My suggestion would be to either change foods to one that is more lean on the ingredients of the food itself or to go with a different version of their food.......They offer a weight control food, I cant think off hand what they call it...I think fat reducing.....then they also offer a senior version.....
My thoughts are that.....If your dogs like Bil Jac and they do well with it then you may just want to consider another verison with lower fat and proteins....Bil Jac is a bulking food....it will make them thicker
My first thought would be to go with the fat reducing food and then if Chase starts looking thin then I would say maybe just put them both on senior it is like 20%p/12%F where the reduce fat is like 18%P/10% fat......
I would also replace the can food with something else like yogurt or egg to still give them the extra but not something as high fat as can food.....lower the portion and cut out the extras for a while.....most extra pounds comes from treats
As Ms. Lexi ages you want to try and keep her lean to help with some issues of knees/hips and arthritis....The same with Chase! Older dogs even though they remain active, do not burn calories the same. As they age it is even harder to get them to reduce weight even if they are on a "diet", but it can be done...you just have to measure portions and be strong on cutting out the snacks
It is tough to do sometimes..my previous dog Jazz got all chunky at the time that I had my daughter....I think we fed her more treats and things out of feeling guilty for not being able to spend as much time with her.....she went from 72 pounds (which was a piggie for her) back to 58 pounds where she needed to be.............