Around the world, people eat far too much red meat and sugar, and nowhere near enough nuts, fruits and vegetables, according to a report released Wednesday. The report, published by the British medical journal The Lancet, said the population's diet and food production must radically change “to improve health and avoid potentially catastrophic damage to the planet.” Changing the diet of billions of people “will require global consumption of foods such as red meat and sugar to decrease by about 50 percent, while consumption of nuts, fruits, vegetables and legumes must double," it said."The dominant diets that the world has been producing and eating for the past 50 years are no longer nutritionally optimal, are a major contributor to climate change, and are accelerating erosion of natural biodiversity."One of the report authors, Dr. Walter Willett of Harvard University, said that "to be healthy, diets must have an appropriate calorie intake and consist of a variety of plant-based foods, low amounts of animal-based foods, unsaturated rather than saturated fats, and few refined grains, highly processed foods, and added sugars."