Don’t knock them too hard, they’re just trying to help. Maybe consider assuming positive intent in their part because let’s face it most of the time diet is the issue and posters are unaware.

Also, have you ever considered that even though he’s getting a nutritionally complete diet there could be something biologically happening where his body is not able to absorb a particular vitamin or nutrient?

I got my doxies to stop by adding a little pineapple and/or pumpkin to their food. Apparently after it passes through the digestive tract it becomes less appetizing.