There are no fruits which dont have a nutritional equivalent vegetable, minus the sugar and taste.

For e.g. 3/4 th cup of orange juice and half a cup of red peppers have the same amount of vitamin c

Aren't peppers still fruits?

I'm not sure, but the difference in sugar is the main thing (sugar raises insulin which signals cells to store fat, very roughly speaking)

I know there is a separate culinary definition of what a fruit is that I don't really understand. Like under some definitions a tomato is a vegetable. Maybe he is working off that but botanically a pepper is a fruit. His point would probably stood better if he used spinach as an example of a vitamin C rich green.

Either way, these fad diets always scare me. I wouldn't touch anything that draws simple, arbitrary, counter-intuitive lines on what foods you can and can't have. The body is good at knowing what it needs and what it doesn't. Support it with a little bit of knowledge and self-discipline and it will serve you well. I guess a well balanced diet is old fashioned and people just want to try and cheat the system somehow.

Well, i was going more for the "kitchen" definition of fruits which in general is sweet and juicy.

Basically the difference is sugar - you dont need bananas and oranges and mangoes for your vitamins.

In the context of the OP, I think that was meant by "green"

Fruits have sugar. Sugar turns into carbs.

... what?

Sugars are a type of carbohydrate.