In adults, being overweight or obese is based on BMI.
In children, being overweight or obese is based on BMI being above normal ranges on growth charts.
Being overweight or obese occurs when the amount of calories you take in is consistently greater than the number of calories you use during activity and basic bodily functions.
Being obese can increase your risk of early death and shorten life expectancy.
Other complications of untreated obesity include:
Being overweight can also affect pregnancy and your child.
You may also experience problems during labor and delivery, or have a baby with a high birth weight.
Complications of obesity. EBSCO DynaMed Plus website. Available at:http://www.dynamed.com/topics/dmp~AN~T576498/Complications-of-obesity. Updated January 16, 2017. Accessed February 23, 2017.
Heart-Health Risk Assessment. American Heart Association website. Available at: http://www.heart.org/HEARTORG/Conditions/More/ToolsForYourHeartHealth/Heart-Health-Risk-Assessments-from-the-American-Heart-Association_UCM_306929_Article.jsp#.VvpxLU2FPIU. Updated August 30 ,2016. Accessed February 23, 2017.
Leddy MA, Power ML, Schulkin J. The impact of maternal obesity on maternal and fetal health. Rev Obstet Gynecol. 2008;1(4):170–178.
Obesity. Merck Manual Professional Version website. Available at: http://www.merckmanuals.com/professional/nutritional-disorders/obesity-and-the-metabolic-syndrome/obesity. Update December 2016. Accessed February 23, 2017.
Obesity and overweight. World Health Organization website. Available at: http://www.who.int/mediacentre/factsheets/fs311/en. Updated June 2016. Accessed February 23, 2017.
Obesity in adults. EBSCO DynaMed Plus website. Available at:http://www.dynamed.com/topics/dmp~AN~T115009/Obesity-in-adults. Updated November 20, 2016. Accessed February 23, 2017.
Overweight and obesity. National Heart, Lung, and Blood Institute website. Available at: http://www.nhlbi.nih.gov/health/health-topics/topics/obe. Updated February 23, 2017. Accessed February 23, 2017.
Zaman A. Diabetes and obesity greatly contribute to hepatocellular carcinoma. NEJM Journal Watch website. Available at: http://www.jwatch.org/na32053/2013/09/11/diabetes-and-obesity-greatly-contribute-hepatocellular?query=topic_nutrition. Accessed October 1, 2013.
10/16/2009 DynaMed Plus Systematic Literature Surveillancehttp://www.dynamed.com/topics/dmp~AN~T115153/Obesity-in-children-and-adolescents: Krul M, van der Wouden JC, Schellevis FG, van Suijlekom-Smit LW, Koes BW. Musculoskeletal problems in overweight and obese children. Ann Fam Med. 2009;7(4):352-356.
1/15/2010 DynaMed Plus Systematic Literature Surveillancehttp://www.dynamed.com/topics/dmp~AN~T576498/Complications-of-obesity: Shiri R, Karppinen J, Leino-Arjas P, Solovieva S, Viikari-Juntura E. The association between obesity and low back pain: a meta-analysis. Am J Epidemiol. 2010;171(2):135-154.
5/27/2014 DynaMed Plus Systematic Literature Surveillancehttp://www.dynamed.com/topics/dmp~AN~T909503/Pregnancy-in-obese-women: Molyneaux E, Poston L, Ashurst-Williams S, Howard LM. Obesity and mental disorders during pregnancy and postpartum: A systematic review and meta-analysis. Obstet Gynecol. 2014;123(4):857-867.
10/1/2014 DynaMed Plus Systematic Literature Surveillancehttp://www.dynamed.com/topics/dmp~AN~T576498/Complications-of-obesity: Bhaskaran K, Douglas I, Forbes H, dos-Santos-Silva I, Leon DA, Smeeth L. Body-mass index and risk of 22 specific cancers: a population-based cohort study of 5.24 million UK adults. Lancet. 2014;384(9945):755-765.
Last reviewed February 2017 by Michael Woods, MD, FAAP Last Updated: 2/23/2017