In this blog post, the author shares their experience of consistently losing a pound a week using the MyFitnessPal app without having to give up their favorite foods or try extreme dieting. They provide a step-by-step guide to setting up an account and logging food using the app, including the option to upgrade to the premium version. The author also demonstrates how to log a full day of eating, including a fast-food meal, a meal of packaged items with barcodes, and a meal where they measure most of the items themselves. Overall, the post emphasizes how MyFitnessPal has helped the author transform their eating habits into a healthy lifestyle change.