There's quite a bit of evidence out there re beneficial aspects of the diet. But there is also a lot that they really don't know yet. At least that is what it seems like to me. Deriding it as "anti science" seems a bit over the top. More like "science unsure" at this point. So considering most of us will be dead before the long term data is collected, analyzed and conclusions reached, you make your choices and take your chances. If I were going to go on it long term (not going to) I'd be at minimum getting some yearly blood work done.