**Fruits & Vegetables: Health Benefits, Side Effects, Uses, Dosage?** Include in extra helping of provitamin A and vitamins C and E. These three vitamins are a good team When it comes to keeping the body fit and efficient. Pro-vitamin A is important for the process of seeing, for example, vitamin C supports the body's ... up to 15 grams of sugar per liter of juice. However, such Korrekturzuckerung is the exception. In any case it must be explicitly stated on the label on it.