Are people getting fatter?

Obesity is a worldwide issue.  

What does being obese look like? Obesity is usually defined as a Body Mass Index over 30. The picture below is of a man in his mid 20’s who weighs 182kg/400lb and has a BMI  of 52.8 

[Image by FatM1ke.1 January 2016. Wikimedia Commons https://commons.wikimedia.org/wiki/File:Obesity6.JPG]

How much of the world's population is overweight?

Back in 2016, according to the World Health Organisation based on body mass index, 39% of adults worldwide were overweight and 13% were obese. [World Health Organisation] 

Overweight
39%
Obese
13%
Not overweight
48%

Pink = Not overweight BMI <25

48%

Red = Overweight BMI >25

39%

Black = Obese BMI > 30

13%

What does being overweight or obese look like relative to body mass index?

Body mass index (BMI) is an index of weight-for-height. It is defined as a person’s weight in kilograms divided by the square of their height in meters (kg/m2). 

 

BMI should be considered a rough guide as it is can be inaccurate for body fat content and does not take into account muscle mass, bone density, pregnancy, overall body composition, racial and gender differences. 

[Image by Bruce Blaus. Obesity & BMI. https://commons.wikimedia.org/wiki/File:Obesity_%26_BMI.png This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.]

Having a high BMI can be harmful.  

High BMI is a major risk factor for diseases such as:

  • cardiovascular diseases (mainly heart disease and stroke), 
  • diabetes;
  • musculoskeletal disorders (especially osteoarthritis);
  • some cancers (including endometrial, breast, ovarian, prostate, liver, gallbladder, kidney, and colon).

Can I take away?

BMI > 25

A BMI of 25 or more means that you are overweight. 

Over 50%

In 2016 more than 50% of the world's population was overweight.

Does the science weigh up?

Green Flag

Global 2016 population statistics from the World Health Organisation are likely to be trusted.

Not Stinky

BMI is an easy tool to use. As a rough guide it can help you understand if you are overweight.

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