Consequences

Childhood obesity is associated with various health-related consequences. Obese children and adolescents may experience immediate health consequences and may be at risk for weight-related health problems in adulthood.

Psychosocial Risks

Some consequences of childhood and adolescent obesity are psychosocial. Obese children and adolescents are targets of early and systematic social discrimination.³⁹ The psychological stress of social stigmatization can cause low self-esteem which, in turn, can hinder academic and social functioning, and persist into adulthood.⁴⁰

Cardiovascular Disease Risks

Obese children and teens have been found to have risk factors for cardiovascular disease (CVD), including high cholesterol levels, high blood pressure, and abnormal glucose tolerance.³⁹ In a population-based sample of 5- to 17-year-olds, 70% of obese children had at least one CVD risk factor while 39% of obese children had two or more CVD risk factors.²

Additional Health Risks

Less common health conditions associated with increased weight include asthma, hepatic steatosis, sleep apnea and Type 2 diabetes.

• Asthma is a disease of the lungs in which the airways become blocked or narrowed causing breathing difficulty. Studies have identified an association between childhood obesity and asthma.^{41, 42}
• Hepatic steatosis is the fatty degeneration of the liver caused by a high concentration of liver enzymes. Weight reduction causes liver enzymes to normalize.³⁹
• Sleep apnea is a less common complication of obesity for children and adolescents. Sleep apnea is a sleep-associated breathing disorder defined as the cessation of breathing during sleep that lasts for at least 10 seconds. Sleep apnea is characterized by loud snoring and labored breathing. During sleep apnea, oxygen levels in the blood can fall dramatically. One study estimated that sleep apnea occurs in about 7% of obese children.⁴³
• Type 2 diabetes is increasingly being reported among children and adolescents who are obese.44 While diabetes and glucose intolerance, a precursor of diabetes, are common health effects of adult obesity, only in recent years has Type 2 diabetes begun to emerge as a health-related problem among children and adolescents.⁴⁵ Onset of diabetes in children and adolescents can result in advanced complications such as CVD and kidney failure.⁴⁵

Tips for Parents
What can you do as a parent or guardian to help prevent childhood obesity? We have some ideas in our Healthy Weight section.

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