A Complex Phenomenon
Obesity is a complex condition that cannot be explained alone in terms of calorie intake. There are many factors that might contribute to weight gain including biological, genetics and others. Usually, a medical practitioner might suggest that a person has obesity if they have a high body mass index (BMI). The WHO estimate that around 650 million adults have obesity. Even though obesity affects a large part of the world, there exist many biases and misconceptions around the topic.