There is a man from Lithuania who states he got rid of AS by the means of water fasting.

He was keeping a diary writing down all the process almost every day.

http://golodanie.su/forum/showthread.php?t=6116

It's quite hardcore. The regimen is:

* 18 days of water fasting.
* 30 days of reintroducing foods gradually and gaining the weight.
* 21 day of water fasting (right after 30-days pause).
* 30 days of reintroducing foods gradually and gaining the weight.
* 19 days of water fasting (right after 30-days pause).
* Reintroducing foods gradually and gaining the weight.

At the beginning of the journey:
weight: 55.8kg
height: 172cm

This happened April 5th 2009.
The man is still symptom-free.