Tasty Robots

"NEC's 'Health/Food Advice Robot' will investigate the composition and proportion inside the food, will issue a warning for taking in too much fat and/or sugar, or tell you if fruit is ripe. If the infrared reflection ratio distribution of various foods is loaded inside the unit beforehand, it can compare the results of the researched food, and determine the actual type of food. For example, it can immediately recognize the make of cheese of type of bread."

http://www.techjapan.com/Article993.html