I probably am not gonna add much more that hasn't been already mentioned, but I normally only eat 3-4 meals for a day, and it still works out fine.
Of that 28 pounds, not only is it gonna be a loss of water weight, but there should be a fair amount of glycogen lost as well. Say you lost 5-6 pounds of fat (hopefully), which is not uncommon at the beginning of most diets, especially if you are obese, then that will leave 22-23 pounds to divide up for water and glycogen loss. Regardless, that is still a LOT of weight lost in 2 weeks...damn!
The feeling of lethargy and energy loss is not uncommon on this diet, you must prepare for this ahead of time before starting the diet. Same goes for feeling "flat". Ephedrine, caffeine, and Yohimbine can all help in this aspect if you decide to partake in their use. Drinking lots of water is very important as well!!!! After doing a CKD for 3-4 weeks, your body will start getting used to this style of eating, and you will not feel as bad.
Try to train on the days that you are most glycogenated...the first days after your carb-up, which by the way you SHOULD be doing once a week anyway. I have great results doing 1/2 the body on Monday and half the body on Tuesday. These 2 days I train heavy to positive failure. Then cardio and abs on Thursday. On Saturday, I will perform a full body depletion workout that helps deplete the muscles further of their glycogen stores. DO NOT TRAIN HEAVY ON THIS DAY! Then I begin my carb up. This usually starts around @pm on Saturday and lasts until 5-6pm on Sunday.
I could add more, but I think i must have written that last paragraph about a hundred times these last 2 years, so if you want do a search on my name, as i have explained in detail exactly how I do things in greater detail. My CKD plan is very similar to MR. X's, except I believe I do my training a little differently.
BMJ