Orange
If You Read Nothing Else

One medium orange covers a day's vitamin C, with fibre the juice leaves behind.
Hesperidin, the flavonoid (a family of protective plant compounds) concentrated in the pith and peel, is the compound most studied for blood vessels.
Orange blossom (bahar narenj) is a separate remedy from the fruit — calming, distilled, and used for sleep.
Winter brings sweet oranges into Iranian and Mediterranean kitchens, ready to eat in slices or squeeze fresh. The blossoms take a different path, becoming bahar narenj for nerves and sleep. Beyond vitamin C, the fruit brings flavonoids (a family of protective plant compounds) like hesperidin that support blood vessels, while the northern groves of Mazandaran and Fars supply the country from November to March.
Known to botanists as Citrus sinensis.