One should use old wheat and barley to eat and ''sidhu, arishtha, sura, asava'' (medicated beverages) to drink and ''shilajatu'' (black bitumen), ''guggulu'' (commiphora mukul) and ''makshika'' as well. [159] | One should use old wheat and barley to eat and ''sidhu, arishtha, sura, asava'' (medicated beverages) to drink and ''shilajatu'' (black bitumen), ''guggulu'' (commiphora mukul) and ''makshika'' as well. [159] |