Eat fat. Lose weight. This guide is a straightforward, practical explanation of how to eat more fatty foods in order to lose weight quickly. Yes, you read that right, eating a lot of fat is a great way to lose weight. The unorthodox and simple dietary tips suggested here do not allow for obesity. If you are 10, 20 or 50 pounds overweight you may be shocked by the results of following these unusual guidelines for a month or two.