Let's say there's this "post apocalyptic" setting world, be it zombies, human rebellion or whatever.
Then there are this group of survivors, who from whatever reason reach an old warehouse, and find a bunch of dog food (within the expiration date).
Would humans be able to survive with dog food?
What would the risks be, and how long till the symptoms start appearing?
Suppose there's also some "reliable" water source too (to remove the dehydration factor, if that changes anything anyhow).