Knowledge: One food diet will prevent from obesity as it will allow to lose a lot of weight but it is very unhealthy. On the other hand, veganism will reduce the risk of chronic and heart illness.

Conversation:
Veganism is one of the best and healthiest diets in my opinion.
Interesting, I know a vegan diet can reduce some diseases like heart disease.
It can also make your metabolism faster, and you become healthier overall.
Some people don't recommend it for children, adolescents or during pregnancy, though.
I personally think it can be really good for those people aswel if there is balance.
I see, well, for some people veganism is more about the ethics of using animals at all.
Yes! this is why i think it's a good diet, because it is helpful for everyone!
And beyond that, some vegans think it helps prevent environmental damage and diseases.
Oh really? Can you tell me some diseases that will prevent from this diet?

Response: Oh sure! Veganism will reduce the risk of chronic and heart illness.