Here is a recently published study from Yale University:
http://www.sciencedaily.com/releases...0216131146.htm
Anti-inflammatory mechanism of dieting and fasting revealed
Date: February 16, 2015
Source: Yale University
Summary: Researchers have found that a compound produced by the body when dieting or fasting can block a part of the immune system involved in several inflammatory disorders such as type 2 diabetes, atherosclerosis, and Alzheimer's disease.
It looks like not just fasting works, but also eating a ketogenic diet or high intensity exercise as well (not all together, but each separately).