{"id":192343,"date":"2026-08-24T12:10:16","date_gmt":"2026-08-24T10:10:16","guid":{"rendered":"https:\/\/newmobility.news\/?p=192343"},"modified":"2026-08-24T12:02:09","modified_gmt":"2026-08-24T10:02:09","slug":"higher-co2-levels-make-food-more-calorie-dense-but-not-more-nutritious","status":"publish","type":"post","link":"https:\/\/newmobility.news\/en\/2026\/08\/24\/higher-co2-levels-make-food-more-calorie-dense-but-not-more-nutritious\/","title":{"rendered":"Higher CO2 levels make food more calorie-dense but not more nutritious"},"content":{"rendered":"Scientists at Leiden University have found evidence that plants grow faster due to increased\u00a0CO2.\u00a0The flip side is that they become higher in calories but less nutritious. The nutritional value of virtually all crops has declined \u2013 plants contain less protein, iron, and other nutrients.\u00a0\r\n\r\nThe<div class=\"leaky_paywall_message_wrap\"><div id=\"leaky_paywall_message\"><img data-recalc-dims=\"1\" decoding=\"async\" class=\"nag_logo\" src=\"https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2022\/02\/nmn-logo-long-transparent-small-4.png?w=300&#038;ssl=1\"  alt=\"New Mobility News\" \/>\r\n\r\n<h2 class=\"text-center\">\r\n\tRead this article now for free!\r\n<\/h2>\r\nRegister a free account and gain access to this article and get more from New Mobility\r\n\n\t\t<div id=\"leaky-paywall-quick-register\" class=\"inline\">\n\t\t\t<form id=\"leaky-paywall-quick-register-form\" method=\"POST\" action=\"\">\n\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<p class=\"form-field email-field\">\n\t\t\t\t\t<label for=\"email\">Email<\/label>\n\t\t\t\t\t<input class=\"email\" type=\"email\" name=\"email\" placeholder=\"Enter your email address\" value=\"\" required>\n\t\t\t\t<\/p>\n\n\t\t\t\t\t\t\t\t\t<p class=\"form-field password-field\">\n\t\t\t\t\t\t<label for=\"password\">Password<\/label>\n\t\t\t\t\t\t<input class=\"password\" type=\"password\" name=\"password\" placeholder=\"Create a password\" value=\"\" required>\n\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<input name=\"company_url\" type=\"text\" value=\"\" autocomplete=\"off\" tabindex=\"-1\" style=\"display:none !important; position:absolute; left:-9999px;\" \/>\n\n\t\t\t\t<input type=\"hidden\" name=\"level_id\" value=\"20\">\n\n\t\t\t\t<input type=\"submit\" value=\"Register for free\">\n\n\t\t\t\t\n\t\t\t<\/form>\n\n\t\t\t<div id=\"leaky-paywall-quick-register-errors\"><\/div>\n\t\t<\/div>\n\n\r\n\r\n<p class=\"text-center\"><strong>\u2014 OR \u2014<\/strong>\r\n\r\n<p class=\"text-center\"><strong>Subscribe now<\/strong> Get unlimited access to the original content of our publishing partners, be alerted on breaking news and get a daily business summary, composed by our specialist journalists, of the top stories about your sector you have to read.<\/p>\r\n\r\n<div class=\"nag_buttons\">\r\n\t<a class=\"button\" href=\"https:\/\/newmobility.news\/subscription\">Subscribe Now<\/a> \r\n\t<span class=\"nag_button_divider\"> or <\/span> \r\n\t<a href=\"https:\/\/newmobility.news\/en\/log-in\/\">SIGN IN<\/a>\r\n<\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Scientists at Leiden University have found evidence that plants grow faster due to increased\u00a0CO2.\u00a0The flip side is that they become higher in calories but less nutritious. The nutritional value of virtually all crops has declined \u2013 plants contain less protein, iron, and other nutrients.\u00a0 The Read this article now for free! Register a free account [&hellip;]<\/p>\n","protected":false},"author":175,"featured_media":192374,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\r\n\r\n{excerpt}\r\n\r\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[29,51851,77201,4],"tags":[],"class_list":["post-192343","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-environment","category-health","category-study","category-top-stories-today"],"acf":[],"featured_image_urls_v2":{"full":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?fit=967%2C640&ssl=1",967,640,false],"thumbnail":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?resize=150%2C150&ssl=1",150,150,true],"medium":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?fit=300%2C199&ssl=1",300,199,true],"medium_large":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?fit=640%2C424&ssl=1",640,424,true],"large":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?fit=640%2C424&ssl=1",640,424,true],"1536x1536":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?fit=967%2C640&ssl=1",967,640,true],"2048x2048":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?fit=967%2C640&ssl=1",967,640,true],"trp-custom-language-flag":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?fit=18%2C12&ssl=1",18,12,true],"related-thumb":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?resize=640%2C480&ssl=1",640,480,true],"gform-image-choice-sm":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?resize=300%2C300&ssl=1",300,300,true],"gform-image-choice-md":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?resize=400%2C400&ssl=1",400,400,true],"gform-image-choice-lg":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?resize=600%2C600&ssl=1",600,600,true],"mailchimp":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?fit=560%2C371&ssl=1",560,371,true],"unipress-phone":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?resize=640%2C100&ssl=1",640,100,true],"unipress-tablet":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?resize=967%2C240&ssl=1",967,240,true],"unipress-tablet-portrait":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?resize=967%2C180&ssl=1",967,180,true],"unipress-tablet-landscape":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?resize=967%2C180&ssl=1",967,180,true],"unipress-smartphone":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?resize=967%2C168&ssl=1",967,168,true],"unipress-wide-screen":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/08\/Scherm%C2%ADafbeelding-2026-08-24-om-11.27.23.png?resize=967%2C180&ssl=1",967,180,true]},"post_excerpt_stackable_v2":"<p>Scientists at Leiden University have found evidence that plants grow faster due to increased\u00a0CO2.\u00a0The flip side is that they become higher in calories but less nutritious. The nutritional value of virtually all crops has declined \u2013 plants contain less protein, iron, and other nutrients.\u00a0 The Read this article now for free! Register a free account and gain access to this article and get more from New Mobility Email Password \u2014 OR \u2014 Subscribe now Get unlimited access to the original content of our publishing partners, be alerted on breaking news and get a daily business summary, composed by our specialist&hellip;<\/p>\n","category_list_v2":"<a href=\"https:\/\/newmobility.news\/en\/category\/environment\/\" rel=\"category tag\">Environment<\/a>, <a href=\"https:\/\/newmobility.news\/en\/category\/health\/\" rel=\"category tag\">Health<\/a>, <a href=\"https:\/\/newmobility.news\/en\/category\/study\/\" rel=\"category tag\">Study<\/a>, <a href=\"https:\/\/newmobility.news\/en\/category\/top-stories-today\/\" rel=\"category tag\">Top Stories Today<\/a>","author_info_v2":{"name":"Hilde Van Raemdonck","url":"https:\/\/newmobility.news\/en\/author\/hilde-van-raemdonck\/"},"comments_num_v2":"0 comments","yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Higher CO2 levels make food more calorie-dense but not more nutritious - newmobility.news<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/newmobility.news\/en\/2026\/08\/24\/higher-co2-levels-make-food-more-calorie-dense-but-not-more-nutritious\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Higher CO2 levels make food more calorie-dense but not more nutritious - newmobility.news\" \/>\n<meta property=\"og:description\" content=\"Scientists at Leiden University have found evidence that plants grow faster due to increased\u00a0CO2.\u00a0The flip side is that they become higher in calories but less nutritious. 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