[Roads and a small dam can be seen next to dried-up lakes located in outback Australia in this aerial picture taken on December 13, 2015. REUTERS/David Gray]Thomson Reuters LONDON (Thomson Reuters Foundation) — Climate change could cause significant changes to global diets, leading to more than half a million extra deaths in 2050 from illnesses such as stroke, cancer, and heart disease, experts said on Wednesday. As extreme weather such as floods and heat waves wreaks havoc with harvests and crop yields, estimated increases in food availability could be cut by a third by 2050, according to the experts' study published in The Lancet medical journal. This would lead to a reduction of 99 calories available per person per day, the assessment of the impact of climate change on diet composition and bodyweight found. Climate change could also lead to a 4% reduction in the consumption of fruit and vegetables, along with a 0.7% drop in the amount of red meat consumed, the study said. Reduced consumption of fruit and vegetables could cause twice as many deaths as undernutrition by 2050, it said. "Even modest reductions in the availability of food per person could lead to changes in the energy content and composition of diets, and these changes will have major consequences for health," study lead author Marco Springmann from the University of Oxford said in a statement. These changes could be responsible for about 529,000 extra deaths in 2050, compared with a future without climate change in which increases in food availability and consumption could have prevented 1.9 million deaths. Even though some climate-related deaths will be offset by reductions in obesity, the projected 260,000 fewer deaths will be balanced by lower calorie availability, the study said. Low- and middle-income countries in the Western Pacific region and Southeast Asia are likely to be worst affected, and almost three quarters of all climate-related deaths are expected to occur in China and India. [china drought]Thomson Reuters "There should be enough food to produce a better diet in 2050 than we currently have globally, but if you add in climate change, then you loose some of those improvements," study coauthor Peter Scarborough from the University of Oxford told the Thomson Reuters Foundation. In Europe, Greece and Italy are likely to be significantly affected, with 124 and 89 deaths per a million people respectively. Cutting emissions could have substantial health benefits and reduce the number of climate-related deaths by 29% to 71%, the study said. "We need to be mitigating greenhouse gasses. If we do, it will bring down the health impact of climate change," Scarborough said. _(Reporting by Magdalena Mis. Editing by Astrid Zweynert.; Please credit Thomson Reuters Foundation, the charitable arm of Thomson Reuters, that covers humanitarian news, women’s rights, corruption and climate change. Visit news.trust.org)_ NOW WATCH: Bill Nye has a great response to Trump's outrageous statements about climate change