Diet Studio v 2.0.2 includes basic feature to assist in the long term diet research: Select set of nutrient you want observe or control. This feature allows to concentrate on most important nutrients. Application provides requirements for some nutrition based on reports of IOM. Select foods consumed over period of time. Diet Studio provides FNDDS 4.1 food data base. Energy calculation and decomposition. Diet Studio calculates total energy from consumed foods, data by each food and each energy source.