I read once, i think it was answering to this same image, that humans have a lot more strength than we use but our brain doesn't allow it to use it bc we might injure ourselves.... Now, if we were already injured beyond repair (aka dead) and our brain's main objective stopped being our protection and started being getting food, then there would be nothing to stop us from using full strength
But, if we're dead, our muscles can't even repair themselves anymore. Using that much strength for long periods of time will definitely leave you entirely limp.
I eat them too