ἐν τῇ ἐδωδῇ ἢ πόσει refers of course to the patient's diet. Plato carefully writes πλεονεκτεῖν here in preference to πλέον ἔχειν. The ‘overreaching’ in such a case might well consist in giving the patient less.

ἢ πράττειν ἢ λέγειν. The idea of πλεονεκτεῖν in speaking has not been introduced before, nor is it made use of in the sequel. We must regard the addition of ἢ λέγειν as merely a rhetorical device to increase the emphasis: see on 333 D and 351 A.

τί δὲ ὁ ἀνεπιστήμων; κτλ. Proclus' commentary on these words is interesting, though he probably reads more into them than Plato intended here: καὶ ὅλως τῷ μὲν ἀγαθῷ τὸ κακὸν ἠναντίωται μόνον, τῷ δὲ κακῷ καὶ τὸ καλὸν (leg. κακὸν) καὶ τὸ ἀγαθόν: ἀναιρετικὸν οὖν ἐστι τοῦ ἀγαθοῦ καὶ τοῦ πρὸς αὐτὸ ἐναντίου κακοῦ (in Alc. I p. 323 ed. Creuzer). The identifications in ὁ δὲ ἐπιστήμων σοφός and ὁ δὲ σοφὸς ἀγαθός below have been allowed before in the special cases of the μουσικός and the ἰατρικός (349 E).