Worried on my Great Dane Health/too skinny?

Have you ever owned a dog before? ALL dogs MUST have protein (meat) in order to prosper and be healthy. If you want to cook for you dog at home thats fine but you must add meat, just because your a vegitarian doesnt mean your dog is. If you dont want to cook with you try a dry based dog food like Innova for large/giant breed, my dogs on it and does wonderfully.