Scientists say that overweight people are a threat to future food security.

Increasing population fatness could have the same implications for world food energy demands as an extra one billion people, researchers say after examining the average weight of adults across the globe.

Obesity is a threat of food security, researchers say.

Scientists from the London School of Hygiene and Tropical Medicine (LSHTM) say that tackling population weight is crucial for food security and ecological sustainability.

The United Nations predicts that by 2050 there could be a further 2.3 billion people on the planet and that the ecological implications of the rising population will be exacerbated by increases in average body mass, researchers said.