In 2021, research from Marco Springmann, a senior researcher at the programme on the Future of Food, was published in The Lancet which used data from the World Bank International Comparison Programme to assess the cost of dietary patterns in 150 countries and found a vegan dietary pattern to be the most affordable. United States journalist Avery Yale Kamila said "the Oxford University study adds high-quality, much-needed data to policy discussions about food costs." Food Navigator journalist Oliver Morrison said "The findings fly in the face of consumer surveys consistently suggesting that most consumers care about sustainability but say they are often unable or unwilling to pay more for 'greener' food and beverage alternatives."
