I've worked with Dave a number of times over the years getting ready for shows. The best was a top 5 placing in the USA several years back. The main criticism of this type of diet is that once you're used to the ketosis feeling, you tend to get tired. And the last thing you need is to start falling asleep behind the wheel during rush hour. For me, the diet had no carbs, protein, & fats. Here was the breakdown (and this is similar to what he had Tony Freeman & Desmond Miller doing)..
Meal #1: Six Egg Whites scrambled with Three Whole Eggs
Meal #2: Very Low/NoCarb Protein Shake w/2 tablespoons of Almond/Cashew Butter.
Meal #3: 6-8oz of Chicken/Turkey Breast with 1/4 cup of almonds/cashews.
Meal #4: Same as #3
Meal #5: Same as #2
Meal #6: 8-10oz. Steak w/large salad (mixed w/balsamic vinegar & macadamia oil)
One meal out of the week is a cheat meal. Like someone said above, when it got closer to the show, the fats were pulled out and the steak was changed to fish/turkey steak. Since my metabolism was somewhat insulin sensitive, I didn't carb up--I basically fat loaded..