BigTable is a compressed, high performance and proprietary database built on Google File System (GFS), Chubby Lock Service and a few other Google programs; it is currently not distributed or used outside of Google. It began in 2004[1] and is now used by a number of Google applications, such as MapReduce, which is often used for generating and modifying data stored in BigTable[2] Google Reader,[3] Google Maps,[4] Google Print, "My Search History", Google Earth, Blogger.com, Google Code hosting, Orkut[4], and YouTube[5] Google's reasons for developing its own database include licensing costs, scalability, and better control of performance characteristics.[6]

The table lists the acid, base values for 114 common foods. Base-producing foods are fruits and vegetables, whereas grains, meats, fish, cheese and salted processed foods are acid-producing.