Rather than another diet-of-the-week, the new UCLA study provides a completely new way to approach the problem

“One exciting aspect of this study is that it provides a proof-of-principle for how engineering a specific metabolic pathway in the liver can affect the whole body adiposity and response to a high-fat diet,” says Karen Reue, a UCLA professor of human genetics and a contributor to the study. “This could have relevance in understanding, and potentially treating, human obesity and associated diseases, such as diabetes and heart disease.”

"Here’s an important caveat: there’s no substitute for eating well-balanced meals and exercising every day if you want to try to stick around for the Singularity. Ray Kurzweil recommends taking vitamins and eating a diet that is low in carbohydrates, fat and dairy products and high in vegetables for encouraging longevity".

Yup: low carb is the best all round I do believe