Open source makes a healthy site for healthy eaters (TDP) is a free, online eating journal with a lot of features that make it useful for the health conscious. The site is developed completely in PHP on MySQL, Apache, and Linux. LAMP was a natural choice, the founders say, because so many other Internet companies have experienced success with the now-ubiquitous platform.

TDP helps people keep track of their eating habits by providing nutritional information on thousands of different kinds of food, and provides the calories per hour burned by doing various kinds of exercise. Registered users can create a profile that saves the information they have logged and creates formatted reports to track weight loss and gain or body measurements.