A panda's diet consists of almost 99% bamboo. What most people don't know is that pandas also eat small animals at times which can include rodents, musk deer fawns, insects, honey, eggs or fish. Check out a few of these difference sources-- theres some interesting information about panda diets: What do pandas eat? Pandas have the digestive system of a carnivore and will eat meat if available, but adapted a long time ago to a vegetarian diet. Unlike their omnivorous bear cousins, pandas depend almost exclusively on bamboo as a food source. Unfortunately their digestive system doesn't seem to have kept pace with the vegetarian adaptation. Not designed to process plant matter, the panda's digestive system cannot easily break down cellulose, so pandas must eat enormous amounts of bamboo daily. Pandas eat as much as 19 kilos of bamboo and for as much as 14 hours a day. Luckily, the giant panda has the largest molars of any of the carnivores, and the panda's forepaws have an extra "thumb," which when used with "forefingers," enable the panda to grasp even small bamboo shoots with precision. http://www.wwfchina.org/english/sub_loca.php?loca=61&sub=16#3 Diet A wild giant panda’s diet is almost exclusively (99 percent) bamboo. The balance consists of other grasses and occasional small rodents or musk deer fawns. In zoos, giant pandas eat bamboo, sugar cane, rice gruel, a special high-fiber biscuit, carrots, apples, and sweet potatoes. http://nationalzoo.si.edu/Animals/GiantPandas/PandaFacts/default.cfm Panda Bears eat over fifteen different kinds of Bamboo. Because of a inefficient intestinal system the Panda must feed for 12 to 16 hours a day, they can consume 22 to 40 pounds of Bamboo each day. When they eat fresh Bamboo shoots they eat about 84 pounds every day. http://www.worldkids.net/eac/panda.html The Pandas usually eat Bamboo and mostly Bamboo,occasionally adding other plants and even fruits, fungi or bark,to their diet.You can tell what the panda have eaten just by looking at their scats. http://165.24.83.51/cm/cybermag1_2/animal1.html additional source: panda wiki

Pandas have the digestive system of a carnivore and will eat meat if available, but adapted a long time ago to a vegetarian diet. Unlike their omnivorous bear cousins, pandas depend almost exclusively on bamboo as a food source. Unfortunately their digestive system doesn't seem to have kept pace with the vegetarian adaptation. Not designed to process plant matter, the panda's digestive system cannot easily break down cellulose, so pandas must eat enormous amounts of bamboo daily. Pandas eat as much as 19 kilos of bamboo and for as much as 14 hours a day. Luckily, the giant panda has the largest molars of any of the carnivores, and the panda's forepaws have an extra "thumb," which when used with "forefingers," enable the panda to grasp even small bamboo shoots with precision.