I always feel that a proverb must have at least some basis in truth. Even more so when more than one language has such a saying. So eat your apples!
While we're on the subject of fruit and the corresponding fruit words. In Italian, the word for the fruit is feminine: la mela, la pera, la ciliegia. But the words for the tree and the wood are masculine: il melo, il pero, il ciliegio.
Some examples:
Avevamo una libreria antica di pero.
We used to have an antique bookcase made of pear wood.
Che buone le mele!
Apples are so good!
I ciliegi sono in fiore a Washington.
The cherry trees are blooming in Washington.
Mi piacciono molto le ciliegie.
I love cherries.
Questo tavolo e' in ciliegio.
This table is cherry wood.