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Obesity and Diabetes

  • Sean Wharton
  • Christy Costanian
  • Talia Gershon
  • Rebecca A. G. Christensen
Chapter

Abstract

The prevalence of obesity has been increasing globally. Due to the negative health effects, obesity has been recognized as a major public health concern. Obesity is defined as a body mass index (BMI) of greater than or equal to 30 kg/m2. The location (i.e., abdominal) and type of excess weight contribute to ill-health; thus methods such as waist circumference and body fat measurements are used in the assessment of obesity. In relation to obesity and type 2 diabetes (T2D), genetics, physical activity, and diet are key predictors to the development of these chronic conditions. Fortunately, treatment options for obesity and T2D are similar and can be categorized as lifestyle, pharmacological, or surgical. When medications or surgery is added to lifestyle interventions, there is much greater benefit in terms of weight loss and diabetes control over lifestyle interventions on their own.

Keywords

Obesity Type 2 diabetes (T2D) Weight management Lifestyle Behavioral Pharmacological Bariatric surgery Physical activity Diet 

Notes

Glossary

Bariatric surgery

is a type of surgical procedure that decreases the amount of calories a patient can consume and/or digests to result in significant weight loss. Types of bariatric surgery include Roux-en-Y gastric bypass, sleeve gastrectomy, and gastric banding.

Body fat

is the amount of subcutaneous and visceral fat in a person’s body which can be presented as an absolute value or percentage.

Body mass index

is the most common tool to assess obesity. It is calculated by dividing weight in kilograms by height in meters squared.

Metabolic surgery

is a newer term used to refer to bariatric surgery owing to the drastic improvements in metabolic conditions that have been observed post-surgery.

Malabsorptive bariatric surgery

is a bariatric surgery procedure that alters a patient’s digestive tract to decrease the amount of nutrients they can absorb from calories consumed. Examples of types of bariatric surgery that use this technique include the Roux-en-Y gastric bypass and biliopancreatic diversion with the duodenal switch.

Obesity

is excess body weight associated with ill-health. Multiple objective methods exist to classify obesity, with a BMI greater than or equal to 30 kg/m2 the most common.

Restrictive bariatric surgery

is a bariatric surgery procedure that decreases the amount of calories a patient can consume by decreasing the size of the stomach. Examples of types of bariatric surgery that use this technique include the sleeve gastrectomy and gastric banding.

Subcutaneous fat

is the type of body fat located just beneath the skin and can be felt by pinching the skin.

Visceral fat

is the type of body fat located internally around the organs. As such, visceral fat is also called organ fat.

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Suggested/Further Reading

  1. Astrup A, Finer N. Redefining type 2 diabetes: “diabesity” or “obesity dependent diabetes mellitus”? Obes Rev. 2000;1(2):57–9. Explores the relationship between obesity and T2D.PubMedCrossRefPubMedCentralGoogle Scholar
  2. Butland B, Jebb S, Kopelman P, McPherson K, Thomas S, Mardell J, et al. Foresight tackling obesities: future choices – project report. Gov Off Sci. 2007;1–161. Section 5 includes an in-depth discussion of the development and treatment of obesity according to the spaghetti map.Google Scholar
  3. Sharma AM, Kushner RF. A proposed clinical staging system for obesity. Int J Obes. 2009;33(3):289–95. Seminal text on the Edmonton Obesity Staging System (EOSS) to evaluate the morbidity and mortality associated with excess weight.CrossRefGoogle Scholar
  4. Wharton S, Serodio KJ. Next generation of weight management medications: implications for diabetes and CVD risk. Curr Cardiol Rep. 2015;17(5):35. Discusses the mechanism of action for weight management medications, and their use in the context of diabetes.PubMedPubMedCentralCrossRefGoogle Scholar
  5. Wharton S, Sharma A, Lau D. Canadian Diabetes Association 2013 clinical practice guidelines for the prevention and management of diabetes in Canada: weight management in diabetes. Can J Diabetes. 2013;37(Suppl 1):S61–8. Provides a more in-depth discussion of weight management options for patients with diabetes, including graphical representations of common bariatric procedures.Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Sean Wharton
    • 1
    • 2
  • Christy Costanian
    • 2
  • Talia Gershon
    • 1
  • Rebecca A. G. Christensen
    • 1
  1. 1.The Wharton Medical ClinicHamiltonCanada
  2. 2.York University, School of Kinesiology and Health ScienceTorontoCanada

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