"Rural diets are also gradually shifting away from traditional, healthy and organic food to those that are more common in urban areas. A whole of a society's effort is required to overcome this problem in a similar manner as was done to fight other public challenges such as HIV and malaria," he said.
Speakers at the global World Food Day ceremony in Rome have echoed King Letsie’s sentiments and called for stronger political will and more financial support to end hunger and malnutrition in all its forms, urging the international community to step up its efforts until everyone has enough and quality food.
This year's theme - "Our actions are our future: a Zero Hunger world by 2030 is possible" - underscores the urgent need to step up collective efforts to reach the Zero Hunger goal. World Food Day is celebrated in over 150 countries around the world.
"The struggle against hunger urgently demands generous financing, the abolition of trade barriers and, above all, greater resilience in the face of climate change, economic crises and warfare," Pope Francis said in a special message read out at the event.
He urged for a Zero Hunger approach that is more proactive and sustained over time, and concrete actions - to step up funds to foster peace and the development of peoples, and prevent weapons and their trade.
The Pope also said that it was regretful that international solidarity appears to be "cooling", and decried the lack of fundamental political will and enthusiasm of responsible political leaders, whom he described "often absorbed purely by electoral concerns or focused on biased, transitory or limited perspectives".
World Food Day is marked as conflict, extreme weather events linked to climate change, economic slowdown and rapidly increasing overweight and obesity levels are reversing progress made in the fight against hunger and malnutrition.
"We need to put in place food systems that provide healthy and nutritious food that are accessible and affordable for everyone," said FAO Director-General José Graziano da Silva in his address.
He underlined that Zero Hunger is not only about feeding but also about nourishing people, providing them with the nutrients they need for healthy, productive lives.
"We are witnessing the globalization of obesity," he said.
"If we don't find concrete ways to stop this, the number of obese people will soon be as high as the number of undernourished people in the world," he warned, urging for improving at the same time the production and consumption of healthy food in a sustainable way.
José Graziano da Silva gave the example of Brazil, Peru and China, lauding them for having reduced hunger significantly in a short period of time - evidence that Zero Hunger is possible if there is political will and financial support.
In a video address, UN Secretary-General António Guterres described the deaths of half of the world's infants due to hunger "intolerable" and called on everyone "to do their part towards sustainable food systems".
Queen Letizia of Spain, FAO Special Goodwill Ambassador for Nutrition and one of the keynote speakers, urged: "Let us ensure that the private sector commits more, that comprehensive education for health is part of the school curriculum. Let's us make sure that consumer step up their role, and really know what they are buying and eating."
President of the International Fund for Agricultural Development (IFAD) Gilbert F. Houngbo said in his remarks: "For African agriculture to reach its potential, it needs investment. Not just in higher productivity and profitability, but in infrastructure, in research, and in policies that result in value chains that are inclusive of smallholders -- and in particular women and youth. We need the political will and budgetary commitments, and more importantly we need to transform challenges into opportunities for rural women and youth."
David Beasley, Executive Director of the World Food Programme (WFP) for his part said: "There's good news. We've made great progress in the world in the past 100 years. But today, we know we're going in the wrong direction. With all our wealth, all our expertise, all our technology - shame on us that any child should go hungry. We will all be held accountable. But I do believe that if we all work together, with the commitment of the men and women around the world, we can achieve Zero Hunger."
Global hunger has risen for the third consecutive year, affecting one in nine or 821 million people.
But other forms of malnutrition have also increased. In 2017, some 150 million children under the age of five (22 percent) were stunted, one in three women of reproductive age was anaemic, and about 2 billion people were overweight, including 38 million overweight children under the age of five, and 672 million of obese adults.
Whilst hunger is mostly restricted to areas ravaged by conflicts, droughts and extreme poverty, obesity is everywhere and is increasing all around the world. It also comes at a huge socio-economic cost - it is a risk factor for diseases such as stroke, heart disease, diabetes and some types of cancer, and its global economic impact is about $2 trillion per year (2.8 percent of the global GDP).
Obesity and anaemia are on the rise as the current global food systems have made processed and industrialized food - high in fat, sugar, salt and chemical additives - more available and accessible.
The FAO is leading with WHO the implementation of the Decade of Action on Nutrition 2016-2025, and supporting countries to address the multiple burdens of malnutrition. This includes adopting legislation to improve the labelling of products, and ban harmful ingredients; introducing nutrition in the school curriculum; combatting food loss and waste; and promoting local fresh food from family farming.
The FAO was also hosting in Rome two high-level panels focused on achieving Zero Hunger during the world food day.
Presenting the challenges faced in achieving Zero Hunger Speakers include Neven Mimica, European Union Commissioner for International Cooperation and Development, Josefa Sacko, African Union Commissioner for Rural Economy and Agriculture and Andrzej Duda, President of Poland and Chairperson of COP24.
Bringing people to the centre of solutions for the planet Speakers include: Epsy Campbell Barr, Vice-President and Chancellor of Costa Rica, Nobel Peace Prize winners Leymah Roberta Gbowee and Alfredo Pérez Ezquivel, Global Head of the Banking for Food Inspiration Center at Rabobank, and Chukki Nanjundaswamy from the Karnataka State Farmers' Association in India.
Additional reporting by agencies