>or do you think I may be overdoing vitamins considering I feed a complete food anyway?
Dogs tend to take what they need from the diet that we feed them and normally pass through what they don't need.Whether that diet be species appropriate or not.
My breed are very prone to eating grass, especially when pups. I was alarmed at first but soon learned to ignore them as they were mainly doing it for attention and then later, for pleasure. My previous breed used to eat grass purely when they had an upset stomach/ or feeling urrgh, but my current breed does it periodically and is very rarely sick. In saying that, my boy has just had a very long operation with biopsies taken from all over his body and he has been eating grass like it's going out of fashion! But that is due in part to him being on very high dose AB's which of course upset the good bacterial balance in his gut but I am trying to counteract that by feeding high dose pro-biotic. I also periodically give natural yoghurt mixed with natural charcoal when they appear to be a bit off balance.
As far as feeding veg is concerned, I tend to steam it for a few minutes to break down the fibrous content so that digestion is easy and stick it through the blender. Or, providing salt hasn't been added, I often give them left over veg from our meal. The only things I don't feed are onions, raw potato/peel. Callia will often sit and munch on a raw brussel sprout, swede, broccoli, cauli flower, you name it, she loves it ;-)