When 'doing' Pronokal or Menuprot, you follow a sort of ketogenic diet. Not only extremely low in carbohydrates but also extremely low fats. To help you lose fat but maintain your muscle mass, you will combine PronoKal products and vegetables and gradually introduce the different food groups. Your dietician(s) coach will teach you the right guidelines for a healthy diet.
You will lose weight from the first days and you will feel energetic without feeling hungry.
This is the plan I have followed to loose my 30 pounds. The biggest benefit for me was: no hunger and no cravings. And a quick loss in weight.