Genetics

Obesity causes cannot be accurately pinpointed in every person because obesity causes are usually widely varied and high in number. That said, some obesity causes are more prevalent than others. The most common obesity causes are given below in general terms, though obesity can be caused by a mix of any of these factors, along with any number of other causes which are best diagnosed by a doctor or nutritionist.

1. Genetics

Genetics are frequently listed as obesity causes, though the full extent of the genetic disposition is not often entirely recognized. There are some genetic disorders that cause obesity just from the body’s tendency to keep fat, however genetic disorders can also factor in a number of other ways. For instance, genetic disorders affecting thyroid function or leptin performance can both have drastic effects on weight. The Centers for Disease Control (CDC) describe how genetics are shown to have a higher influence in obesity factors than ever before. At the same time, however, studies that show the rising rates of obesity in recent years suggest that environmental factors have a fairly large say in obesity. The CDC makes a point of recommending that even people who have a high genetic disposition to obesity ought to maintain a healthy diet and lifestyle.

2. Diet

Diet changes in the last several decades have been shown to be a major factor in obesity causes. Over the past decades, American food has, as a trend, become saltier, fattier, and more processed. Moreover, links between obesity and food can be shown in people who eat processed foods more often than fresh food, and those who snack on processed foods over fresh ones. Further, far more people eat out at restaurants than ever before in American history, which contributes heavily to obesity levels. Much of our American food is extremely high in calories and fat and a diet high in this food tends to have fewer fresh vegetables and fruits, and far more proteins and fats. Furthermore, studies show that most Americans have either enough or too many proteins in their diet, in comparison to a lack of fresh fruits and vegetables, as well as fibers and dairy.

3. Lifestyle/Environment

Lifestyle and, in particular, amount of exercise are great contributing obesity causes. Getting exercise is vital to preventing obesity in anyone, and a failure to get exercise can be extremely problematic. Furthermore, one’s environment and one’s acquaintances can also be major obesity causes. Having friends and family who practice many of the major obesity causes, such as poor eating and low exercise levels, can help contribute to a person’s obesity by providing a social environment that is not conducive to being thin.