According to a reliable tradition from Imam Reza (a.s.), fig cleans bad smell of the mouth, strengthens bones, increases hair and cures different types of pains. One does not need any medicine after having figs. Among all the fruits, fig has close similarity with the fruits of heaven. It also cures colic (qulanj).
It is also stated that figs cure piles and pain in toes and fingers of leg. It increase sexual strength.
Ziad Kundi states that when he visited Imam Moosa Kazim (a.s.), he saw a plate of aloo-bukhara (plum). The Imam (a.s.) said that he was suffering from fever and fresh aloo-bukhara makes the temperature fall and causes nausea. Dried aloo-bukhara balances the temperature of blood and cures all types of pains.
Some people enquired from Imam Ja’far-e-Sadiq (a.s.) as to what the doctors think about chakotra (grape fruit). The Imam (a.s.) said that it should be taken after the meals though the doctors ask grape fruit to be taken before meals.
According to a tradition from Imam Ja’far-e-Sadiq (a.s.), from the pulp of sanjad (sea-buckthorn), meat is created, skin from its dermis and bones from its seed. Eating sanjad softens and cleans stomach and cures piles.
According to Imam Reza (a.s.), one should not take melon before breakfast as it causes paralysis. It should always be taken with dried dates or sugar as the Holy Prophet (s.a.w.a.) used to take.
A tradition from Imam Ja’far-e-Sadiq (a.s.) states that eating guava cleans stomach and gives strength. It is better if one takes it after meals instead of first thing in the morning.
And the last point:
A tradition from the Holy Prophet (s.a.w.a.) states that if one says Bismillah before having any fruit then it does not harm.