Ninja diet

The Ninja diet was a form of military rations historically consumed by ninjas. The types of rations consumed included 'thirst pill' (水渇丸), 'provisions pill' (兵糧丸), 'starvation pill' (飢渇丸),  hoshii (糒しい, 'dried boiled rice'), and 'hard-baked' (かた焼き).

Bansenshukai hunger pills
According to Hakim Isler, the 3 most common food pills were Suikatsugan, Hyorougan and Kikatsugan.


 * Hyorougan ("ration pills") was made of glutinous rice, ordinary rice, lotus seed, Chinese yam, cinnamon, adlay, Asian ginseng and sugar. Other source say that Hyorougan was made from wheat powder, saké, sticky rice and carrots. According to Hakim Isler, they were made of non-glutinous rice, lotus fruits, yams, ginseng and crystal sugar.
 * Kikatsugan ("hunger pills"), or starve pill, was designed to help the ninjas when in starvation, being made from glutinous rice, sake, dried chickweed, ginseng, buckwheat, adlay and yams.
 * Suikatsugan ("thirst pills") were made with pickled plum (umeboshi), buckwheat flour, and yams.