People are addicted to drugs, alcohol, video games, gambling, and any number of other things. Several addictions are common enough to have their own disorder (e.G., alcoholism). Similarly, people can be addicted to food...And beating a food addiction is nowhere near as easy as any of the others mentioned above, since you can't practice avoidance to manage addiction. So obesity itself is not a mental disorder, but the cause (food addiction) may be.
I think that it should be a mental disorder because they are mentally locked on just eating fatty foods and not sorting their problem out, they are just fixed on eating fatty foods and eventually will need help when they become un help able. Their brains just crave more and more bad foods that eventually one day will kill them. If obesity was named a mental disorder then people would think of it as something bad instead of something they can just continue on with in their life.
Obesity is not a disorder and it certainly has no type mental aspect to it. It is all about self control. People need to be more aware of what they eat and find ways to stay healthy. Obese individuals need to put the fork down and start getting more active.
Obesity is not a mental disorder in and of itself. In some cases a mental disorder such as depression or eating disorders can contribute to obesity, but obesity is a physical disorder. A person can be born with a predisposition to obesity, it can be caused by other health factors such as a metabolic disorder or as was already stated, it can be a by-product of a separate mental disorder. Furthermore, obesity is not listed in the current Diagnostic and Statistical Manual of Mental Disorders.
Obesity should not be considered a mental disorder, mainly because it is not one. Some might argue that obesity incorporates a lot of the same issues as addiction or low self-esteem, but the actual disorder is clearly a physical one. The mental states associated with obesity are the result, not the cause of the fatness.
Obesity is a physical disorder, not a mental one. One of the possible ways obesity results is from too much sugar, which can disorient the brain, and keep it wanting more and more. It is a disorient in the body itself, not necessarily the mind, which would make it inappropriate to call it a mental disorder.