Slob is a novel that focuses on the cause and effect of childhood obesity for Owen. Obesity in children increased by 14% around the world between 1975 and 2016 (“Obesity and Overweight.” World Health Organization), resulting in physical and mental health issues that reduce quality of life and life expectancy. With more than 42 million overweight or obese children worldwide, the World Health Organization established a commission to address the issue, identifying this as an international emergency. Childhood obesity is a physical condition where the health or well-being of a child suffers due to excess body fat. Frequently referred to as overweight to avoid negative cultural connotations of obesity, early issues are typically psychological resulting from issues with body image that can lead to low self-esteem and depression. Psychological disorders associated with body image that may arise due to childhood obesity include anorexia and bulimia.

Research suggests several causes that may contribute to childhood obesity include dietary habits, genetics, and environmental factors. The emphasis on the dietary controls Owen’s mother implements so he can lose weight highlight this concern as an important aspect of his challenges with childhood obesity. An increase in technology use amongst children can also contribute to childhood obesity.