0snowbum14Best Answer 8 years ago ReplyUpvoteUPDATE: While on missions depending on the length of said mission a ninja would typically carry edemame (soy beans) and white rice. These would be pre-cooked so that the ninja had to do as little prep work on their mission. If on a full-night mission a ninja would possibly carry a vial of Panax Gensing extract for energy. The vials of gensing are now redaly available at health food stores and asian food stores or even your local supermarket in the vitamin isle. Remember that weight is always a factor in these situations and most of the time common sense and a knowledge of the foods of the era in Japan can help you find your answer.