Do you feed you dog dry food?
Have you tried soaking it in hot water then allowing it to cool before feeding it. You will be amazed how much liquid it will absorb. Just think what happens in the dogs stomach if you had fed it dry, where does the moisture come from.?..
My Lab died of stomach cancer and although I know this didn’t cause it (I’ve had dogs all my life) it can’t have been beneficial.
Soak your dogs food and see what you think, also the dogs seem to prefer it fed warm.