Next Generations Will Be Larger And Heavier – More Food Will Be Required To Feed Earth’s Population


In 2050, it will be much harder to feed nine billion people than it is to feed the 7.6 billion today, says Gibran Vita, a Ph.D. candidate at the Norwegian University of Science and Technology ‘s Industrial Ecology Program.

WWF reports that the world’s most significant environmental issue is the destruction of wildlife and the planet habitat.

A massive part of the devastation is triggered by the demands of a human population that’s continually growing. But on the other hand, Zero Hunger is the second UN Sustainable Development Goal, and the challenge that it brings is to meet the global growing food demand.

The world’s population could level off at nine billion is a few years, compared to today’s population of 7.6 billion.

An average person in the future will need more food than today, according to research. There are various changes in eating habits, attitudes regarding waster, increasing body mass and height and demographic transitions.

The population is undergoing massive changes

Professor Daniel B. Müller and colleagues Felipe Vásquez and Vita studied changes in the populations of 186 countries between 1975 and 2014.

“We studied the effects of two phenomena. One is that people on average have become taller and heavier. The second is that the average population is getting older,” said Vita.

The first phenomenon leads to increased food demand and the second one counteracts the first.

An average adult in 2014 was 14% heavier, about 1.3% taller, 6.2% older, and needed 6.1% more energy than in 1975. Researchers expect this trend to continue for most countries.

“An average global adult consumed 2465 kilocalories per day in 1975. In 2014, the average adult consumed 2615 kilocalories,” says Vita.

It seems that most studies claim that an average adult’s food needs will not change too much over time across nations. But things are quite different.

“These assumptions can lead to errors in assessing how much food we’ll actually need to meet future demand,” Vásquez says.


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