Original sentence: A good introduction to the Feingold Program, as well as 400 pages of compiled wisdom from over 30 years of working with families using the diet, is provided by the book "Why Can't My Child Behave.Aspartame and its related chemicals have recently been eliminated from the Feingold Program because of evidence that they may be harmful to the nervous system.Families can often continue to eat the types of food to which they are accustomed,
Edited sentence: A good introduction to the Feingold Program, as well as 400 pages of compiled wisdom from over 30 years of working with families using the diet, is provided by the book "Why can't my child behave.Aspartame and its related chemicals have recently been eliminated from the Feingold Program because of the weight of the evidence that they are harmful to the nervous system.Families can continue to eat the types of food to which they are accustomed,.The first 50 pages can be read on line, and it is available from the Feingold Association or  Amazon.com and is found in many public libraries