The cuisine was founded on the "Mediterranean triad" of cereals, olives, and grapes, which had many uses and great commercial value, but other ingredients were as important, if not more so, to the average diet: most notably legumes. Research suggests that the agricultural system of Ancient Greece could not have succeeded without the cultivation of legumes.
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In ancient Greece, fruit and vegetables were a significant part of the diet, as the ancient Greeks consumed much less meat than in the typical diet of modern societies. Legumes would have been important crops, as their ability to replenish exhausted soil was known at least by the time of Xenophon.