Dwarf Pickles
 

Dwarf Pickles give +1 stamina. Correct me if I'm wrong but I don't think there should be any stat food in classic.

Pixie Pickles pump your sv mag too

paladin pickles +1 wis

Iirc bomba the big just inside wfp gates always sold a handful of stat food.

no food in game had stats this era on live

I'm pretty sure that Boomba the Big had stat food that had +1 to stuff.. only like 3 or 4 kinds tho.. but im not sure if it was kunark or velious..

The first stat food I personally remember were those Erudite Steaks or whatever from Warrens that gave + int.