If you have read "Breaking the Vicious Cycle" by Elaine Gottshsall or "Management of Celiac Disease" by Sidney Haas, the premise of the SCD diet is to deprive harmful bacteria of certain carbohydrate food sources. Here is an interesting article that talks about the post antibiotic buffet for bacteria. (I'm no scientist so by all means read for yourself and do not trust my interpretation). It seems that after antibiotics there is a spike of certain carbohydrates that gives unwanted bacteria an advantage over the others.
The article is in Digital Journal and is called "Scientists Demonstrate How Antibiotics Can Alter Gut Flora Allowing Infection"
