{"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\/nl\/2026\/08\/24\/higher-co2-levels-make-food-more-calorie-dense-but-not-more-nutritious\/","title":{"rendered":"Hogere CO\u2082-concentraties zorgen ervoor dat voedsel meer calorie\u00ebn bevat, maar niet voedzamer is"},"content":{"rendered":"<p>Wetenschappers van de Universiteit Leiden hebben aanwijzingen gevonden dat planten sneller groeien als gevolg van een toename van<span class=\"Y2IQFc\" lang=\"en\">\u00a0CO2.\u00a0<\/span><span class=\"Y2IQFc\" lang=\"en\">De keerzijde is dat ze meer calorie\u00ebn bevatten, maar minder voedzaam zijn. <\/span><span class=\"Y2IQFc\" lang=\"en\">De voedingswaarde van vrijwel alle gewassen is afgenomen \u2013 planten<\/span><span class=\"Y2IQFc\" lang=\"en\"> minder eiwitten, ijzer en andere voedingsstoffen bevatten.\u00a0<\/span><\/p><p>In het Leidse onderzoek werden duizenden waarnemingen van tientallen gewassen en voedingsstoffen gebundeld. De algemene conclusie luidt dat een verhoogd CO\u2082-gehalte de samenstelling van planten doorgaans doet verschuiven naar een hoger gehalte aan koolstof en koolhydraten, terwijl de concentraties van verschillende essenti\u00eble mineralen en vaak ook eiwitten afnemen.<\/p><div class=\"leaky_paywall_message_wrap\"><div id=\"leaky_paywall_message\">Deze inhoud is gearchiveerd. <a href=\"https:\/\/newmobility.news\/nl\/subscription\/\">Inloggen of abonneren<\/a> tot een niveau dat toegang heeft tot gearchiveerde inhoud.<\/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.\u00a0The Leiden study pooled thousands of observations across dozens of crops and [&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_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_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.\u00a0The Leiden study pooled thousands of observations across dozens of crops and nutrients. Its overall conclusion is that elevated CO\u2082 tends to shift plant composition toward greater carbon and carbohydrate content, while reducing concentrations of several essential minerals and often protein.This content has been archived. Log in or Subscribe to a level that has access to archived&hellip;<\/p>\n","category_list_v2":"<a href=\"https:\/\/newmobility.news\/nl\/category\/environment\/\" rel=\"category tag\">Environment<\/a>, <a href=\"https:\/\/newmobility.news\/nl\/category\/health\/\" rel=\"category tag\">Health<\/a>, <a href=\"https:\/\/newmobility.news\/nl\/category\/study\/\" rel=\"category tag\">Study<\/a>, <a href=\"https:\/\/newmobility.news\/nl\/category\/top-stories-today\/\" rel=\"category tag\">Top Stories Today<\/a>","author_info_v2":{"name":"Hilde Van Raemdonck","url":"https:\/\/newmobility.news\/nl\/author\/hilde-van-raemdonck\/"},"comments_num_v2":"0 comments","yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - 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\/nl\/2026\/08\/24\/higher-co2-levels-make-food-more-calorie-dense-but-not-more-nutritious\/\" \/>\n<meta property=\"og:locale\" content=\"nl_BE\" \/>\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. The nutritional value of virtually all crops has declined \u2013 plants contain less protein, iron, and other nutrients.\u00a0The Leiden study pooled thousands of observations across dozens of crops and [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/newmobility.news\/nl\/2026\/08\/24\/higher-co2-levels-make-food-more-calorie-dense-but-not-more-nutritious\/\" \/>\n<meta property=\"og:site_name\" content=\"newmobility.news\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/search\/top\/?q=newmobility.news\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-24T10:10:16+00:00\" \/>\n<meta property=\"og:image\" content=\"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\" \/>\n\t<meta property=\"og:image:width\" content=\"967\" \/>\n\t<meta property=\"og:image:height\" content=\"640\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Hilde Van Raemdonck\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@jorisvry\" \/>\n<meta name=\"twitter:site\" content=\"@jorisvry\" \/>\n<meta name=\"twitter:label1\" content=\"Geschreven door\" \/>\n\t<meta name=\"twitter:data1\" content=\"Hilde Van Raemdonck\" \/>\n\t<meta name=\"twitter:label2\" content=\"Geschatte leestijd\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/08\\\/24\\\/higher-co2-levels-make-food-more-calorie-dense-but-not-more-nutritious\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/08\\\/24\\\/higher-co2-levels-make-food-more-calorie-dense-but-not-more-nutritious\\\/\"},\"author\":{\"name\":\"Hilde Van Raemdonck\",\"@id\":\"https:\\\/\\\/newmobility.news\\\/#\\\/schema\\\/person\\\/7540fd72a981bf6a315ba1b874c2a464\"},\"headline\":\"Higher CO2 levels make food more calorie-dense but not more nutritious\",\"datePublished\":\"2026-08-24T10:10:16+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/08\\\/24\\\/higher-co2-levels-make-food-more-calorie-dense-but-not-more-nutritious\\\/\"},\"wordCount\":684,\"publisher\":{\"@id\":\"https:\\\/\\\/newmobility.news\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/08\\\/24\\\/higher-co2-levels-make-food-more-calorie-dense-but-not-more-nutritious\\\/#primaryimage\"},\"thumbnailUrl\":\"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\",\"articleSection\":[\"Environment\",\"Health\",\"Study\",\"Top Stories Today\"],\"inLanguage\":\"nl-BE\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/08\\\/24\\\/higher-co2-levels-make-food-more-calorie-dense-but-not-more-nutritious\\\/\",\"url\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/08\\\/24\\\/higher-co2-levels-make-food-more-calorie-dense-but-not-more-nutritious\\\/\",\"name\":\"Higher CO2 levels make food more calorie-dense but not more nutritious - 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