According to the World Health Organisation, worldwide obesity has more than doubled since 1980.

Key facts

• In 2014, more than 1.9 billion adults, 18 years and older, were overweight. Of these over 600 million were obese.
• 39% of adults aged 18 years and over were overweight in 2014, and 13% were obese.
• Most of the world’s population live in countries where overweight and obesity kills more people than underweight.
• 42 million children under the age of 5 were overweight or obese in 2013.
• Obesity is preventable.