Fysshe may be sode, rosted, bruled & baken euery one after theyr kynde, & vse a fasshyon of the countre, as the coke and the phisicion wyll agre & deuyse. For a good coke is halfe a phisicion. For the chefe phisicke (the councell of a phisecion except) dothe come from the kytchyn, wherfore the phisicion and the coke for sicke men must consult togyther for the preparacion of meate for sicke men.
Source, in full
Fish may be seethed [boiled], roasted, broiled and baked, every one after their kind; and use a fashion of the country, as the cook and the physician will agree and devise. For a good cook is half a physician. For the chief physick [medicine] (the council of a physician except) doth come from the kitchen; wherefore the physician and the cook for sick men must consult together for the preparation of meat for sick men.
Notes from Wikiquote
Ch. 18