Pattern Index

Obesity

Obesity is defined as excessive fat accumulation which poses risks to health. A basic measure of obesity uses the body mass index (BMI) which is calculated by dividing a person’s weight by their height. A BMI over 30 is usually considered obese. According to the World Health Organisation obesity is a major factor in a number of health risks including diabetes, cardiovascular diseases and cancer. The global increase of energy-dense foods high in sugar and fat has meant that obesity has tripled worldwide since 1975.