Common meaning:

Studying the factors that lead to obesity. 

Hidden meaning of the Equity religion: 

Generating studies which proclaim that obesity is healthy and any health issues that do exist are created by thin people.

Discussion:

The Equityists believe, by faith, that being obese has no impact on health and fat studies look to document this already known truth. They also look to uncover the damage that thin people have done to fat people and show how it is this oppression that has caused health issues in obese poeple. 

The beauty of the Equity religion is how it can apply the same narrative of oppression over and over again to different sets of groups. It is not even necessary for any harm to have occurred between the groups, although if there have been problems, that is a bonus. This has recently been applied to the area of fat studies. Since it is assumed obesity is healthy, the reason that fat people get sick is because of the attacks of thin people. 

The Equityists believe that all thin people are guilty in promoting thin culture, which is oppressive to fat people. The people in the oppressive thin group need to be removed from modeling and replaced with fat people from the oppressed group.

It is Equity religious thinking that has resulted in fat studies and blaming thin people for damaging fat ones.