In Metal Gear Solid 4, you can walk up to militia or PMC troops and give them items, including rations. Does doing so count towards your tally of "recovery items used" or not?
No, it doesn't count. The only items which count against you are Rations, Noodles and Regain. (Which are used on yourself.) Syringe does not count, and anything that just recovers psyche does not count.
Note: You have to be really careful when doing this challenge because sometimes you will automatically munch a ration when taking damage. I would recommend that you drop them all to be safe :).