[asciimov]

Think of it this way, if a drug addict said they wanted to stop, would you tell them they would be going good if they only used every 3rd day?

To get the benefits of keto, you have to get the body adapted to burning fat. Depending on the body, this can take a week or so. All those cravings are the body crying out for a fix of easy sugar, because it really doesn't want to have to switch over and burn fat for fuel as its harder for it to do.

If you just had sugar every 3rd day, you're body would never adjust.