No a bad diet makes people vulnerable to cheating. A good diet helps you not cheat. That’s the whole goal in designing weight-loss diets! Help people reduce their calorie intake while not going mad or cheating.

An otherwise brilliant diet that drives everyone to cheat is useless.

It's not a diet issue. It's a psychological issue. You have to fix both independently. One is not effective without the other.

That’s just not how people work. Their weaknesses are exposed differently by different diets. That’s why people are encouraged to find the diet that works for them, and why diets are more than just absolute maths and science.

That's where the point of failure is. Procrastination through finding the right diet rather than throwing science at it (backed up by our health authority here in the UK). It's easy to keep changing and pretending you're doing something than actually doing it and people are lazy and need to fix that first.

> people are lazy and need to fix that first

That's what their diet plans are supposed to help them fix!

The diet plans are allowing them to remain being lazy which is a faulty outcome.

I have absolutely no idea where you're coming from with this angle.

If people could just magically decide to be perfectly disciplined and motivated all the time, then we wouldn't need any diets would we? We'd just say 'great now just eat healthily all the time'. But people struggle to do that, so we have diet programmes to help them.

The diet plan is there to help work around the laziness and ill-discipline which is a natural and eternal part of being a flawed human being.