Interactive Web Application Idea

I haven't been all over the web, but my idea for a web application would be a site where a person could enter what they ate, where they ate it, how they ate it, and get all the nutritional information on their meal. Usually, if a person wants to get the nutritional information on a meal, they have to search several web sites and sometimes they are bogus or give you faulty information. One site that has all the information would be very handy and help people monitor what they eat.