New research, published in Obesity, has found that people with obesity are not only stigmatized, but are blatantly dehumanized.

Obesity is now very common in most developed countries. Around one-third of US adults and one-quarter of UK adults are now medically defined as having obesity. However, obesity is a complex medical condition driven by genetic, environmental, and social factors.

Previous research has suggested that people often hold stigmatizing and prejudiced views about obesity. This new research conducted at the University of Liverpool, led by Dr. Inge Kersbergen and Dr. Eric Robinson examined whether stigmatizing views about obesity may be more extreme than previously shown. The research examined whether people believe that individuals with obesity are less evolved and human than those without obesity.

Methods used

As part of a recognized research approach employed in a number of other studies, more than 1,500 participants made up of people from the United Kingdom, United States, and India completed online surveys to indicate how evolved they consider different groups of people to be on a scale from 0–100.

The researchers also recorded the body mass index (BMI) of those completing the survey to find out whether blatant dehumanization of obesity was more common among thinner people and investigated whether blatant dehumanization predicted support for health policies that discriminate against people because of their body weight.

Results

Participants on average rated people with obesity as "less evolved" and human than people without obesity. On average, participants placed people with obesity approximately 10 points below people without obesity. Blatant dehumanization was most common among thinner participants, but was also observed among participants who would be medically classed as being "overweight" or "obese."

People who blatantly dehumanized those with obesity were more likely to support health policies that discriminate against people because of their weight. Dr. Robinson, a reader at the University of Liverpool, said, "This is some of the first evidence that people with obesity are blatantly dehumanized. This tendency to consider people with obesity as 'less human' reveals the level of obesity stigma. It's too common for society to present and talk about obesity in dehumanizing ways, using animalistic words to describe problems with food (eg, 'pigging out') or using images that remove the dignity of people living with obesity. Obesity is a complex problem driven by poverty and with significant genetic, psychological, and environmental components. Blatant or subtle dehumanization of any group is morally wrong and in the context of obesity, what we also know is that the stigma surrounding obesity is actually a barrier to making long-term healthy lifestyle changes."

Dr. Kersbergen, now a research fellow at the University of Sheffield, said, "Our results expand on previous literature on obesity stigma by showing that people with obesity are not only disliked and stigmatized, but are explicitly considered to be less human than those without obesity. The fact that levels of dehumanization were predictive of support for policies that discriminate against people with obesity suggests that dehumanization may be facilitating further prejudice."