The FatWatch Weight Log

FatWatch is a tool for your iPhone or iPod touch to help you track and analyze your body weight. It uses methods described in The Hacker's Diet by John Walker.

Take a tour and then buy it on the App Store.
Sep 13 '08
By the way, if 1/3 of your apps are going to be eating apps, you might want to look into FatWatch or Daily Count. I’m just sayin’.
— from a comment by iPhonica, on the CNET post “Letting iPhone apps run my life for a day