If you you perform a Google search on the phrase "cyclical ketogenic diet" you'll get close to 900K results and probably much more if you stumble upon this article years in the future from the date it was written as the amount of accumulated repeated info keeps piling up at an ever accelerating pace.
Of course I didn't check them all out but I guess my conclusion can be generalized. Surprisingly, EVERYONE got it wrong. The one who came the closest was the late Dan Duchaine is his book Body Opus. His biggest mistake was to consider the weekly Cyclical Ketogenic protocol a diet to be performed for fat loss and not a lifestyle to adhere to indefinitely. Duchaine's horrible recommendations (instructions) for the weekends made sure that nobody would adhere to his Body Opus for an extended amount of time.
Duchaine's weakness in general physiology and especially nutrients absorption and their metabolism, which he masked well by his rants about some cell biology details from medical research studies, lead him to the faulty conclusions. He was also influenced by his background as a "guru" bobybuilding prep coach. By no means I intend to discredit Dan. To be clear I owe him a lot and if one day I visit his grave I'll make sure to place a rose and I'll probably shed a tear or two.
Dan wanted a system that worked for bodybuilders who were weaned off anabolic steroids to use for "cutting" and not lose muscle size. He didn't realize how close he was to the magic formula that works for the average Jane and Joe with non gifted nutrient partitioning. In Dan's defence, Leptin, Gherlin, Irisin and incretins were not discovered yet or not well known when his book was published back in 1996. But still he should've known about chylomicrons, lipoproteins and the extended delay in the accessibility of long chain fatty acids to the muscles and internal organs after ingesting.
The 2nd closest, although his suggested protocol wasn't ketogenic, is Timothy Ferris with his Slow Carb diet presented in his bestseller book The 4 Hour Body. But again he suggested the protocol as a fat loss diet not as a lifestyle and luckily he didn't. No one I know would want to eat beans several times a day six days a week for the rest of their lives!
Timothy got lost in the details as did Daniel which is expected from people with the rare sophisticated intelligence that both so obviously display in their writing styles.
So what was in common between the Body Opus and the Slow Carb protocols you may ask. Well, they both kept insulin low for most of the week and then allowed for a large amount of carbs/calories over the weekend. Those protocols simulated the most how the human body was designed to perform at it's optimum. No wonder both protocols worked like a charm and people improved their body compositions in relatively short times.
We'll take from Dan the Ketogenic working days and we'll take from Tim the free overfeeding and Shazam we got an even closer simulation to the original design that optimizes human performance and vitality.
The issue of totally free overfeeds vs. restricted overfeeds that excludes fats and processed foods/drinks will be discussed in another article(s). As for now, you got the green light from me to eat whatever you want on Sundays (and Saturdays on some occasions). You must eat big for the system to work. Welcome to the 975AJ lifestyle!
Sayed Farah is the author of According to a Diabetic Jewelry Designer.. a former skinny fat tired middle-aged man who conquered type II diabetes without medication and transformed himself into a physique competitor in a year with simple lifestyle changes.