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Written By: Editorial Team | Updated : November 21, 2018 10:40 AM IST
Green Mediterranean diet vs traditional Mediterranean diet. ©Shutterstock
In the few years, the world's population could level off at around nine billion when compared to just over 7.6 billion now. According to one of the researchers Gibran Vita from Norwegian University of Science and Technology, it will be difficult to feed nine billion people in the year 2050 than it would be today. For conducting the study, the researchers have analyzed the changes in the populations of 186 countries between the year 1975 and 2014. One is that people on average have become taller and heavier and the second one is that the average population is getting older.
An average adult in the year 2014 was 14 per cent heavier, about 1.3 per cent taller, 6.2 per cent older, and was needed 6.1 per cent more energy than in 1975. The researchers have expected this trend to continue in most countries. According to Vita, an average global adult consumed 2,465 kilocalories per day in the year 1975. In the year 2014, the average adult consumed 2,615 kilocalories. Overall, globally, human consumption has gone up by 129 per cent during this time span. The population growth which was responsible for 116 per cent, which has increased weight and height accounted for 15 per cent.
Reportedly, Felipe Vasquez from the Norwegian University of Science and Technology said, according to previous studies haven't taken the increased demands of larger individuals and aged societies into account when calculating about the future food needs of that growing population.
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