Nearly one in nine people in the world are going hungry, with the coronavirus pandemic exacerbating already worsening trends this year, according to a United Nations report published Monday. Economic slowdowns and climate-related shocks are pushing more people into hunger, while nutritious foods remain too expensive for many, contributing not only to undernourishment, but to growing rates of obesity in adults and children. "After decades of long decline, the number of people suffering from hunger has been slowly increasing since 2014," said the State of Food Security and Nutrition in the World annual report. Not only did people need enough food, but nutritious food, the study said, citing costly "health and environmental consequences" of sub-par diets. Nearly 690 million people, or 8.9 percent of people around the globe, are hungry, the UN found. That number rose by 10 million people in just one year to 2019, and by 60 million in the past five years, found the study, which said eradicating hunger by 2030 - a goal set five years ago - will be impossible if trends continue. By 2030, over 890 million people could be affected by hunger, or 9.8 percent of the world's population, it estimated. Five United Nations agencies co-authored the report: the Food and Agriculture Organization (FAO), the International Fund for Agricultural Development (IFAD), the United Nations Children's Fund (UNICEF), the World Food Programme (WFP) and the World Health Organization (WHO). Last year, the report estimated that over 820 million people were going hungry, but estimates were recalculated following revised data from China for prior years. - More undernourished people - When measuring both moderate and severe food insecurity in 2019, the number balloons from 690 million to 2 billion people without "regular access to safe, nutritious and sufficient food". The COVID-19 pandemic, which has hit hard in nations with widespread poverty, could cause another 83 to 132 million people to become undernourished this year, the report said. Global trends had already been worsening before coronavirus, it said. About a quarter of Africa's population could go hungry by 2030 from 19.1 percent today, already twice the world average. In Asia, the number of hungry people fell by 8 million people since 2015, although the continent remains home to more than half the world's undernourished people. Trends in Latin America and the Caribbean are worsening, with 9 million more hungry people last year than in 2015. - Too expensive - "A key reason why millions of people around the world suffer from hunger, food insecurity and malnutrition is because they cannot afford the cost of healthy diets," found the report. In all regions, adult obesity is on the rise, with healthy diets of fruits, vegetables and protein-rich foods unaffordable to some 3 billion people. Over 57 percent of people in sub-Saharan Africa and Southern Asia cannot afford a healthy diet. Low-income countries rely on starchy staples like cereals and tubers that can cost 60 percent less than healthy diets, but lack necessary proteins and key vitamins and minerals to reduce infections and ward off disease. The report found 21.3 percent of children under five, or 144 million, experienced stunted growth due to malnutrition, most of them in Africa or Asia. Another 6.9 percent were "wasted" with nutritional imbalances, while 5.6 percent were overweight. Of the overweight children, 45 percent come from Asia, and 24 percent from Africa, underscoring how malnutrition takes the form of both undernutrition and obesity. Current patterns in food consumption are estimated to result in health costs of over $1.3 trillion per year by 2030. But healthier diets could lower those costs by up to 97 percent, the report estimated, citing a vegetarian diet with associated health costs of less than $100 million. Costs are also associated with greenhouse gas emissions caused by today's food production system which could also be reduced by alternative diets. While acknowledging high prices for healthy food are due to a variety of factors from insufficient diversification and inadequate food storage to domestic subsidies that favor staples, the report called an "urgent rebalancing of agricultural policies and incentives."