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Obesity Class III
BMI

Your result:

BMI Classification Table
BMI Classification
Under 18.5 Underweight
18.5 - 24.9 Normal Weight
25-29.9 Overweight
30-34.9 Obesity Class I
35-39.9 Obesity Class II
Over 40 Obesity Class III

*This BMI calculator is for adults 20 years or older. Talk to your doctor about your BMI if you're under the age of 20.

What does this mean for you?

A BMI of 40 and above places you in the category Obesity Class III. Being in this category puts you at high risk of developing obesity-related diseases and can severely impact your quality of life. Talk to your healthcare provider or another professional trained in obesity management immediately.

Start by discussing your unique needs and situation. Based on these and the results of other diagnostic tests, your healthcare provider can recommend a weight management plan and treatment options to help you lose weight.

Contact your healthcare provider to find out which scientifically-proven treatment is right for you and what you can do to make a change now.

Treatment

A healthcare provider can make recommendations depending on the specific needs, current health status, and whether there are any weight-related complications.

Treatments include:

  • Healthy Eating
  • Increased physical activity
  • Behavioural therapy
  • Meal replacements / low energy diets
  • Weight loss medications
  • Bariatric surgery*
References
  1. Rueda-Clausen, C F et al, “Assessment of People Living with Obesity,” Can. Adult Obes. Clin. Pract. Guidel., pp. 1–17, 2020, [Online]. Available: http://obesitycanada.ca/wp-content/uploads/2020/09/6-Obesity-Assessment-v5-with-links.pdf.
  2. Yumuk, V et al, “European Guidelines for Obesity Management in Adults” Obes Facts. 2015 Dec; 8(6): 402–424. Published online 2015 Dec 5. doi: 10.1159/000442721.
  3. Garvey, W T et al, “American Association of Clinical Endocrinologists and American College of Endocrinology comprehensive clinical practice guidelines for medical care of patients with obesity.” Endocrine Practice 2016;22:1–203. DOI:https://doi.org/10.4158/EP161365.GL
  4. Guh, D P et al, “The incidence of co-morbidities related to obesity and overweight: A systematic review and meta-analysis,” BMC Public Health, vol. 9, no. 1, p. 88, 2009, doi: 10.1186/1471-2458-9-88.
  5. Prospective Studies Collaboration, “Body-mass index and cause-specific mortality in 900000 adults: collaborative analyses of 57 prospective studies,” Lancet, vol. 373, no. 9669, pp. 1083–1096, Mar. 2009, doi: 10.1016/S0140-6736(09)60318-4.
  6. “Obesity Screening – Medline Plus, U.S. National Library of Medicine” Available: https://medlineplus.gov/lab-tests/obesity-screening/.
  7. “Assessing Your Weight and Health Risk – National Heart, Lung, and Blood Association – U.S. Department of Health & Human Services” Available: https://www.nhlbi.nih.gov/health/educational/lose_wt/risk.htm.
  8. Hussain, A et al, “Type 2 Diabetes and obesity: A review” Journal of Diabetology, June 2010; 2:1.
  9. Katzmarzyk, P T et al, “Body mass index and risk of cardiovascular disease, cancer and all-cause mortality” Can. J. Public Health, vol. 103, no. 2, pp. 147–151, 2012, doi: 10.1007/BF03404221.
  10. Kurth, T et al, “Prospective Study of Body Mass Index and Risk of Stroke in Apparently Healthy Women,” Circulation, vol. 111, no. 15, pp. 1992–1998, Apr. 2005, doi: 10.1161/01.CIR.0000161822.83163.B6.
  11. Landi, F et al, “Body Mass Index is Strongly Associated with Hypertension: Results from the Longevity Check-Up 7+ Study” Nutrients. 2018 Dec; 10(12): 1976. Published online 2018 Dec 13. doi: 10.3390/nu10121976.
  12. Dağ, Z Ö et al, “Impact of obesity on infertility in women,” J. Turkish Ger. Gynecol. Assoc., vol. 16, no. 2, pp. 111–117, Jun. 2015, doi: 10.5152/jtgga.2015.15232.
  13. Moussa, O M et al, “Effect of body mass index on depression in a UK cohort of 363037 obese patients: A longitudinal analysis of transition,” Clin. Obes., vol. 9, no. 3, p. e12305, Jun. 2019, doi: https://doi.org/10.1111/cob.12305.
  14. Zhao, G et al, “Depression and anxiety among US adults: associations with body mass index,” Int. J. Obes., vol. 33, no. 2, pp. 257–266, 2009, doi: 10.1038/ijo.2008.268.
  15. Lamon-Fava, S et al, “Impact of Body Mass Index on Coronary Heart Disease Risk Factors in Men and Women,” Arterioscler. Thromb. Vasc. Biol., vol. 16, no. 12, pp. 1509–1515, Dec. 1996, doi: 10.1161/01.ATV.16.12.1509.
  16. Van Hemelrijck, M et al, “Longitudinal study of body mass index, dyslipidemia, hyperglycemia, and hypertension in 60,000 men and women in Sweden and Austria” Published: June 13, 2018https://doi.org/10.1371/journal.pone.0197830.
  17. Loomis, A K et al, “Body Mass Index and Risk of Nonalcoholic Fatty Liver Disease: Two Electronic Health Record Prospective Studies,” J. Clin. Endocrinol. Metab., vol. 101, no. 3, pp. 945–952, Mar. 2016, doi: 10.1210/jc.2015-3444.
  18. Zafar, S et al, “Correlation of gastroesophageal reflux disease symptoms with body mass index,” Saudi J. Gastroenterol., vol. 14, no. 2, pp. 53–57, Apr. 2008, doi: 10.4103/1319-3767.39618.
  19. Han, T S et al, “A clinical perspective of obesity, metabolic syndrome and cardiovascular disease,” JRSM Cardiovasc. Dis., vol. 5, pp. 2048004016633371–2048004016633371, Feb. 2016, doi: 10.1177/2048004016633371.
  20. Health risks of obesity – Medline Plus, U.S: National Library of Medicine.” Available: https://medlineplus.gov/ency/patientinstructions/000348.htm.
  21. Canadian Adult Obesity Clinical Practice Guidelines. Available:  https://obesitycanada.ca/guidelines/ 

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