How can the SuperFastDiet result in weight loss, when it allows me to eat normally most days?

Our research shows that people don’t (or maybe even can’t) binge on the non-fast day. The two day fast is equivalent to 25% of a person’s energy needs, the three day fast is equivalent to 50% of a person’s energy needs and the partial day fast is equivalent to 80% of a person’s energy needs. Essentially, they all result in the same outcome: a reduction in your weekly calorie intake by around 20%. When scientists first started studying this diet, they assumed that people would eat 175% or 150% of their calories on the non-fast day, to fully compensate for eating only 25% or 50% of their calories on the fast days. This isn’t the case though. Recent findings show that people only eat about 110% of their daily calories on the feast day, instead of the predicted 175%. Why is this? They don’t fully know, but it’s presumed that it involves stomach shrinking, or an increased sensitivity to fullness signals. Studies are currently underway to find out what is responsible for this effect.