I don't know what the long-term health effects of it would be, but I have it on good authority that dry dog food is capable of sustaining human life, if eaten as a "breakfast cereal" with powder-based milk.
Supposedly the cheapest stuff tastes best, since it doesn't have the flavoring or meat byproducts in it that dogs find palatable. It's basically just raw carbohydrates, fat, and protein; I think corn and soy based, mostly.
As a kid I often ate both wet and dry dog food, it's basically tasteless if, as you say, it's not the premium brands. I'd go with the dry stuff if I had to do it again.
The premium bands seems to want to make it smell acceptable to humans but it just tastes horrible. I suspect it's the smell that makes it taste so bad.
BTW I didn't need to eat the dog food, I just did it. I also ate quite a lot of mud from the back garden. I had a great childhood :)
Supposedly the cheapest stuff tastes best, since it doesn't have the flavoring or meat byproducts in it that dogs find palatable. It's basically just raw carbohydrates, fat, and protein; I think corn and soy based, mostly.