Just like the title says. As of Patch 5, food serves no other real purpose than as supplies for a long rest at camp. Picking it up along the way just adds weight to your backpack that won't serve a function until you return to camp, so I inevitably end up right-clicking any food I have and selecting "send to camp" from the drop-down list. It's a pain to do this for each individual fish and wheel of cheese. I think it would be a nice, practical QoL improvement if all food items/camp supplies were automatically sent to camp when looted, as that's the only place we can use them anyway.