Really. It completely relieves the need to break long crafting / building sessions for food. If you eat as much as you can for a day (maybe 50 sausages or so) then you are set for the next 5 or so days before you start going famished, even on fast metabolism.
Also looting is nice: just eat anything you find that isn’t nailed down. (Or pry it up and eat it, who am I to judge?). Doesn’t take up carry weight, and again, you’re set for several days of reading/crafting afterwards, just need clean water. Very handy.
Tldr: reap big efficiency benefits by eating lots, then ignoring hunger until famished.