No Snacks
  No Sweets
  No Seconds
  Save, Sometimes, On S-Days

  (S-Days are Saturday, Sunday, or other days that are
  special to you for family/cultural/religious reasons)

In addition to moderation, balance is important. Having a healthy balance between fat/proteins/carbs/nutrients as well as balance between life/work/exercise. Being off-balance is usually unsustainable in the long term.

For example: Going no-carb will lose weight up front, but the body requires sugars in some form -- much of the weight will come right back once returning to a balanced diet with carbs. However, the body can be trained to crave less carbs, and weightloss with a low-carb diet is sustainable for a lifetime.

Also, there is a difference between your goals and the goals of the OP. He clearly wants to lose weight while you sound content with maintaining. He could certainly transition to a less strict diet once his goals are met.

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

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.

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"

Sugars are a type of carbohydrate.