Across countries and cuisines, a clear pattern emerged: within most food groups, lower-cost options also tend to carry a smaller climate footprint.<\/p>\n At a time when food systems are under pressure to cut emissions without worsening food insecurity<\/a>, the findings offer a rare bit of good news. <\/p>\n In many cases, eating in a way that\u2019s better for the climate doesn\u2019t mean spending more \u2013 it means making different choices.<\/p>\n Comparing cost, nutrition, and emissions<\/p>\n The researchers built country-by-country models using three streams of data for each food item: local availability and cost, how often it appears in the national food supply, and its global average greenhouse gas footprint per unit.<\/p>\n For every country, they generated five diet scenarios: the lowest-emission healthy diet<\/a>, the lowest-cost healthy diet, and three versions built from commonly consumed foods.<\/p>\n \u201cIn general, choosing less expensive options in each food group is a reliable way to lower the climate footprint of one\u2019s diet,\u201d said study lead author Elena Martinez.<\/p>\n \u201cThis new study extends that to the extremes, asking which items could meet health needs with the smallest possible climate footprint.\u201d<\/p>\n Cheap, climate-friendly foods<\/p>\n Using 2021 as a reference, a healthy diet built from the most commonly consumed products emitted about 5.38 pounds of CO2-equivalent per person per day and cost a global average of $9.96.<\/p>\n The benchmark plan explicitly designed to minimize climate harms would have emitted just 1.48 pounds and cost $6.95. A plan built to minimize monetary cost would have emitted 3.64 pounds for only $3.68.<\/p>\n A pragmatic blended scenario, mixing popular items with lower-cost, healthier swaps, landed in the middle at roughly $6.33 per day and 4.10 pounds of emissions. <\/p>\n On average, both emissions and costs fall when people shift toward cheaper choices within each food group.<\/p>\n Cheaper food often means lower carbon<\/p>\n In most categories, the least expensive items use fewer fossil fuels<\/a> and involve less land-use change, two of the biggest drivers of food-related emissions.<\/p>\n Production efficiencies, simpler processing, and shorter supply chains also help. The pattern holds strongly until you push to the very cheapest ends of two key groups: animal-source foods and starchy staples. There, tradeoffs emerge.<\/p>\n Animal foods complicate the pattern<\/p>\n Among animal foods, milk<\/a> is often the lowest-cost option per calorie, and its CO2-equivalent emissions are far below beef and many other meats. But it isn\u2019t the only frugal, climate-smart choice.<\/p>\n Small, oily fish such as sardines and mackerel typically sit at an intermediate cost while delivering even lower emissions, thanks to their feed efficiency and processing profile. <\/p>\n For families aiming to stay nourished and shrink their footprint, shifting protein toward dairy and low-trophic-level fish can pay immediate dividends.<\/p>\n Rice\u2019s hidden climate cost<\/p>\n Starchy staples tell a different story. In many countries, rice is the cheapest choice at the market, but not the lowest emission staple.<\/p>\n Wheat or maize often carry smaller carbon footprints<\/a>, largely because flooded paddy fields emit methane as microbes break down organic matter. <\/p>\n That microbial methane makes rice a high-emission bargain \u2013 economical at the checkout, costly in the atmosphere.<\/p>\n Where people can comfortably substitute some rice with wheat or corn products, emissions fall without blowing up budgets.<\/p>\n A simple rule for shoppers<\/p>\n These insights give governments and development agencies a clearer path to align climate and nutrition policies.<\/p>\n Subsidies, school meals, and safety-net programs can prioritize lower-cost foods within each food group that also reduce emissions. <\/p>\n At the same time, investments in rice-paddy<\/a> methane mitigation and dairy methane reductions can address the rare cases where the cheapest options carry outsized climate impacts.<\/p>\n For consumers, the rule of thumb is refreshingly simple: within each aisle, the more affordable choice is usually the greener one, so long as you\u2019re not leaning entirely on the cheapest rice or the most methane-intensive dairy.<\/p>\n Budget food choices help the climate<\/p>\n \u201cThere are situations where reducing emissions costs money because it involves investment in new equipment and power sources,\u201d said William Masters, the senior author of the study. <\/p>\n \u201cMost people can reduce emissions by choosing less expensive options from each food group, with important exceptions at the extremes of low-cost diets due to methane from dairy and rice.\u201d<\/p>\n In practical terms, that might look like swapping premium cuts for eggs or milk. It may be favoring sardines over steak, choosing beans often, and mixing maize<\/a> or wheat into meals that would otherwise be rice-heavy.<\/p>\n Healthy diets don\u2019t have to be expensive to be climate-friendly. Across countries and cuisines, the study\u2019s modeling shows that modest shifts toward cheaper items inside each major food group cut both costs and carbon.<\/p>\n With food prices and climate risks rising together, that\u2019s welcome news: a pathway where doing right by your budget also helps the planet.<\/p>\n The study is published in the journal Nature Food<\/a>.<\/p>\n \u2014\u2013<\/p>\n Like what you read? Subscribe to our newsletter<\/a> for engaging articles, exclusive content, and the latest updates.\u00a0<\/p>\n Check us out on EarthSnap<\/a>, a free app brought to you by Eric Ralls<\/a> and Earth.com.<\/p>\n \u2014\u2013<\/p>\n","protected":false},"excerpt":{"rendered":"Eating for the planet is often framed as a luxury choice \u2013 something that comes with higher food…\n","protected":false},"author":2,"featured_media":315653,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[102,6636,56,54,55],"class_list":{"0":"post-315652","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-nutrition","8":"tag-health","9":"tag-nutrition","10":"tag-uk","11":"tag-united-kingdom","12":"tag-unitedkingdom"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/315652","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/comments?post=315652"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/315652\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media\/315653"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media?parent=315652"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/categories?post=315652"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/tags?post=315652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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