One of the problems with the word "diet" is the implicit connotations with fad-y short-term weight management strategies that never last. The same thing happens with the word "fast", but the implications are often religious. It's very easy to dismiss 5:2 for these reasons.

Looking at 5:2 simply as a "pattern of eating", however, makes it easier to consider not only the apparent health changes but also other potential benefits, including:

- Reduction of IGF-1 - Prolonged period of not eating as a means to promote cell repair - Shining a light on the cultural norms around eating three square meals a day with/without snacks in between.

After watching the documentary it seems like 5:2 may be more than just another "fad" diet.