The Deipnosophists (2.43)

Moreover, Mnesitheus the Athenian, in his book on Comestibles, says,

The digestion of Eubœan nuts or chestnuts (for they are called by both names) is very difficult for the stomach, and is attended with a great deal of flatulence. And they are apt to thicken the juice, and to make people fat, unless their constitution is strong enough to neutralise them. But almonds, and likewise the nuts of Heraclea, and the Persian nuts, and all others of the same sort, are still worse than these: and it is desirable to touch absolutely none whatever of these things unless they are first cooked by fire; with the exception of, perhaps, the green almonds. But one should boil some of them, and roast others; for some of them are of an oily nature, as the dry almonds and the acorns of Jupiter; but some are hard and harsh, as the nuts of the

v.1.p.89

beech and all that kind. And from the oily sorts the action of the fire extracts the oil, which is the worst part of them: but those which are hard and harsh are softened, and, so to say, ripened, if any one cooks them over a small and gentle fire.

But Diphilus calls chestnuts also Sardinian acorn, saying that they are very nutritious, and full of excellent juice; but not very easy of digestion, because they remain a long time in the stomach; that, however, when they are roasted they are less nutritious, but more digestible; and that when boiled they are less apt to produce flatulence than the others, and more nutritious.

It is easily peel'd, and the Eubœans

Call it a nut, but some people have call'd it an acorn,

Where the Sinopean nuts are produced the natives call the trees which produce them ἄμωτα.