{"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\/fr\/2026\/08\/24\/higher-co2-levels-make-food-more-calorie-dense-but-not-more-nutritious\/","title":{"rendered":"Des niveaux de CO\u2082 plus \u00e9lev\u00e9s augmentent la densit\u00e9 calorique des aliments, mais ne les rendent pas plus nutritifs"},"content":{"rendered":"Des scientifiques de l'universit\u00e9 de Leyde ont mis en \u00e9vidence que les plantes poussent plus vite en raison de l'augmentation du CO\u2082. Le revers de la m\u00e9daille est qu'elles deviennent plus caloriques mais moins nutritives. La valeur nutritionnelle de la quasi-totalit\u00e9 des cultures a diminu\u00e9 : les plantes contiennent moins de prot\u00e9ines, de fer et d'autres nutriments. \n\nLe<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=\"Actualit\u00e9s sur les nouvelles mobilit\u00e9s\" \/>\r\n\r\n<h2 class=\"text-center\">\r\n\tLisez cet article gratuitement d\u00e8s maintenant !\r\n<\/h2>\r\nCr\u00e9ez un compte gratuit pour acc\u00e9der \u00e0 cet article et profiter pleinement de 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=\"\" data-trp-original-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\">Courriel<\/label>\n\t\t\t\t\t<input class=\"email\" type=\"email\" name=\"email\" placeholder=\"Entrez votre adresse e-mail\" 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\">Mot de passe<\/label>\n\t\t\t\t\t\t<input class=\"password\" type=\"password\" name=\"password\" placeholder=\"Cr\u00e9er un mot de passe\" 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=\"Inscrivez-vous gratuitement\">\n\n\t\t\t\t\n\t\t\t<input type=\"hidden\" name=\"trp-form-language\" value=\"fr\"\/><\/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 OU \u2014<\/strong>\r\n\r\n<p class=\"text-center\"><strong>Abonnez-vous d\u00e8s maintenant<\/strong> B\u00e9n\u00e9ficiez d'un acc\u00e8s illimit\u00e9 au contenu original de nos partenaires \u00e9ditoriaux, recevez des alertes sur les derni\u00e8res actualit\u00e9s et obtenez chaque jour un r\u00e9sum\u00e9 r\u00e9dig\u00e9 par nos journalistes sp\u00e9cialis\u00e9s des articles incontournables sur votre secteur.<\/p>\r\n\r\n<div class=\"nag_buttons\">\r\n\t<a class=\"button\" href=\"https:\/\/newmobility.news\/fr\/abonnement\/\">Abonnez-vous d\u00e8s maintenant<\/a> \r\n\t<span class=\"nag_button_divider\"> ou <\/span> \r\n\t<a href=\"https:\/\/newmobility.news\/fr\/log-in\/\">CONNEXION<\/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\/fr\/category\/environment\/\" rel=\"category tag\">Environment<\/a>, <a href=\"https:\/\/newmobility.news\/fr\/category\/health\/\" rel=\"category tag\">Health<\/a>, <a href=\"https:\/\/newmobility.news\/fr\/category\/study\/\" rel=\"category tag\">Study<\/a>, <a href=\"https:\/\/newmobility.news\/fr\/category\/top-stories-today\/\" rel=\"category tag\">Top Stories Today<\/a>","author_info_v2":{"name":"Hilde Van Raemdonck","url":"https:\/\/newmobility.news\/fr\/author\/hilde-van-raemdonck\/"},"comments_num_v2":"0 comments","yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - 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\/fr\/2026\/08\/24\/higher-co2-levels-make-food-more-calorie-dense-but-not-more-nutritious\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\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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