make the choice of food matter:

feeding honey could enhance health (temporarily; until the next feeding or until stamina reaches some level);

feeding lean meat could enhance attack (temporarily; until the next feeding or until stamina reaches some level),

overfeeding them could enhance "assailant synergy" (at the expense of "protector") or induce the "berserk" effect;

feeding eggs or fatty meat could enhance defense (temporarily; until the next feeding or until stamina reaches some level),

overfeeding them could enhance protective synergy (at the expense of assailant or tactician or a chance to dodge);

feeding corn or potatoes could enhance speed (temporarily; until the next feeding or until stamina reaches some level),

overfeeding them could enhance a chance to dodge;

feeding glowing mushrooms could enhance critical chance (temporarily; until the next feeding or until stamina reaches some level);

feeding or overfeeding poisonous food could induce a poison effect like a canictonis;

feeding bamboo could enhance healing synergy (temporarily; until the next feeding or until stamina reaches some level),

feeding puppies with bamboo could have them mature faster (bamboo is said to be one of the fastest growing plants);

feed a companion independently of a wolf

performance matters but wolfes are functionaly alike and companions cannot be used independently of wolfes;

this suggestion can improve the situation.