{"id":178,"date":"2026-01-20T10:58:48","date_gmt":"2026-01-20T09:58:48","guid":{"rendered":"https:\/\/adnacademy.yohanndeprez.fr\/?p=178"},"modified":"2026-10-06T18:40:02","modified_gmt":"2026-10-06T16:40:02","slug":"genetique-et-alimentation","status":"publish","type":"post","link":"https:\/\/adn-academy.com\/en\/genetique-et-alimentation\/","title":{"rendered":"From genes to the plate: how does genetics influence our diet?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">For a long time, we believed our genes determined our health in an unchangeable way. Today, science shows that our <strong>food choices can directly influence the expression of our genes.<\/strong><br\/><br\/><\/p>\n\n<p class=\"wp-block-paragraph\">This is what two complementary disciplines reveal: <strong>nutrigenetics and nutrigenomics.<\/strong> Together, they form the foundation of <strong>precision nutrition<\/strong>, a personalised approach to health and prevention.<\/p>\n\n<h2 class=\"wp-block-heading\">Nutrigenetics and nutrigenomics: two approaches, one goal<\/h2>\n\n<p class=\"wp-block-paragraph\">The <strong>science of nutrigenetics<\/strong> studies how our genes influence our response to nutrients. The <strong>science of nutrigenomics<\/strong>, conversely, explores how nutrients can activate or inhibit certain genes.<\/p>\n\n<p class=\"wp-block-paragraph\">In other words:<\/p>\n\n\n<ul class=\"wp-block-list\">\n<li>Nutrigenetics seeks to understand <strong>why two people respond differently to the same diet.<\/strong><\/li>\n<li>Nutrigenomics explains <strong>how our diet changes gene expression.<\/strong><\/li>\n<\/ul>\n\n\n<p class=\"wp-block-paragraph\">These two sciences open the way to <strong>personalised medicine,<\/strong> which is more preventive and better adapted to each person\u2019s biology.<\/p>\n\n<h2 class=\"wp-block-heading\">Nutrigenetics: when our genes shape our relationship with nutrition<\/h2>\n\n<p class=\"wp-block-paragraph\">In a world where personalised healthcare is becoming the norm, nutrigenetics represents a major advance. It examines how genetic variations influence digestion, metabolism and energy regulation.<\/p>\n\n<h3 class=\"wp-block-heading\">Understand individual differences<\/h3>\n\n<p class=\"wp-block-paragraph\">Some genetic variants modulate our metabolic response to a given nutrient.<\/p>\n\n<p class=\"wp-block-paragraph\">This is why <strong>two individuals can respond very differently to the same diet.<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Practical examples:<\/p>\n\n\n<ul class=\"wp-block-list\">\n<li>Variations in vitamin D pathways can influence metabolic risk independently of the measured blood level.<\/li>\n<li>Expression of the FTO gene, associated with obesity, is modified by physical activity and consumption of foods high in sugar or fat.<\/li>\n<\/ul>\n\n\n<p class=\"wp-block-paragraph\">These examples show that a \"risk\" gene does not determine your destiny: <strong>the environment, diet and lifestyle play equally essential roles.<\/strong><\/p>\n\n<h3 class=\"wp-block-heading\">Towards personalised nutritional prevention<\/h3>\n\n<p class=\"wp-block-paragraph\">Often, it is not a single gene, but <strong>the interaction between several variants<\/strong> that modulates our metabolic vulnerability.<\/p>\n\n<p class=\"wp-block-paragraph\">Genetic profiles could therefore become genuine <strong>nutritional screening tools<\/strong>, helping identify at-risk individuals and tailor their dietary recommendations in a targeted way.<\/p>\n\n<h2 class=\"wp-block-heading\">Nutrigenomics: when our food speaks to our genes<\/h2>\n\n<p class=\"wp-block-paragraph\">Nutrigenomics examines the opposite effect: <strong>how nutrients and bioactive compounds<\/strong> such as polyphenols, omega-3 fatty acids, vitamins and fibre <strong>modify gene expression.<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Our DNA does not change, but the way it is expressed can evolve. This is the very principle of <strong>epigenetics.<\/strong><\/p>\n\n<h3 class=\"wp-block-heading\">Nutrients as biological switches<\/h3>\n\n<p class=\"wp-block-paragraph\">Some nutrients switch genes involved in inflammation, energy metabolism or oxidative stress on or off.<br\/>A few well-documented examples:<\/p>\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>polyphenols<\/strong> in green tea or turmeric reduce the activity of pro-inflammatory genes.<\/li>\n<li>The <strong>omega-3 fatty acids<\/strong> activate PPAR genes, which are involved in regulating fats.<\/li>\n<li>The <strong>vitamins B9 and B12, and methionine<\/strong> contribute to DNA methylation, a key process in epigenetic regulation.<\/li>\n<\/ul>\n\n\n<p class=\"wp-block-paragraph\">This interaction between food and our cells creates a <strong>true molecular dialogue<\/strong> : our diet influences our genes, and our genes determine our nutritional needs.<\/p>\n\n<h2 class=\"wp-block-heading\">The rise of personalised nutrition<\/h2>\n\n<p class=\"wp-block-paragraph translation-block\">The combination of <strong>nutrigenetics<\/strong> and <strong>nutrigenomics<\/strong> opens the way to <strong>personalised nutrition,<\/strong> capable of adapting micronutrient intake to each person\u2019s genetic profile.<br>These approaches offer the prospect of <strong>targeted prevention of chronic diseases<\/strong> such as diabetes, obesity and cardiovascular conditions.<br><strong>Precision nutrition<\/strong> remains an emerging discipline, but its potential is immense: it incorporates the interactions between the <strong>genome, microbiota, environment and dietary habits<\/strong> to provide truly tailored nutrition.<\/p>\n\n<p class=\"wp-block-paragraph\">Understanding these interactions between genes and nutrients also helps explain why certain substances, such as <strong>caffeine<\/strong>, do not have the same effects on everyone. To find out more, read our article on <a href=\"https:\/\/adn-academy.com\/en\/cafeine-et-genetique\/\">Caffeine and genetics.<\/a><\/p>\n\n<h2 class=\"wp-block-heading\">Train in precision nutrition with ADNAcademy<\/h2>\n\n<p class=\"wp-block-paragraph\">Nutrigenetics and nutrigenomics show that our diet does more than provide energy: <strong>it influences the very expression of our genes.<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">To support this development, healthcare professionals need training in these approaches.<\/p>\n\n<p class=\"wp-block-paragraph\">At ADNAcademy, we offer courses dedicated to <strong>precision nutrition<\/strong>, to learn how to:<\/p>\n\n<p class=\"wp-block-paragraph\">\u25cf understand the scientific foundations of nutrigenetics and nutrigenomics,<\/p>\n\n<p class=\"wp-block-paragraph\">\u25cf interpret genetic test results,<\/p>\n\n<p class=\"wp-block-paragraph\">\u25cf and integrate them practically into clinical or sports practice.<\/p>\n\n<p class=\"wp-block-paragraph\">Start learning now and discover how to connect <a href=\"https:\/\/adn-academy.com\/en\/formations\/genetique-nutrition\/\"><strong>genes to the plate.<\/strong><\/a><\/p>\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\"><div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/adn-academy.com\/en\/formations\/genetique-nutrition\/\">Explore the Genetics and Nutrition course<\/a><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Longtemps, nous avons cru que nos g\u00e8nes d\u00e9terminaient notre sant\u00e9 de mani\u00e8re immuable. Aujourd\u2019hui, la science montre que nos choix alimentaires peuvent influencer directement l\u2019expression de nos g\u00e8nes.<\/p>","protected":false},"author":1,"featured_media":162,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-178","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nutrition"],"_links":{"self":[{"href":"https:\/\/adn-academy.com\/en\/wp-json\/wp\/v2\/posts\/178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/adn-academy.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/adn-academy.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/adn-academy.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/adn-academy.com\/en\/wp-json\/wp\/v2\/comments?post=178"}],"version-history":[{"count":2,"href":"https:\/\/adn-academy.com\/en\/wp-json\/wp\/v2\/posts\/178\/revisions"}],"predecessor-version":[{"id":201,"href":"https:\/\/adn-academy.com\/en\/wp-json\/wp\/v2\/posts\/178\/revisions\/201"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/adn-academy.com\/en\/wp-json\/wp\/v2\/media\/162"}],"wp:attachment":[{"href":"https:\/\/adn-academy.com\/en\/wp-json\/wp\/v2\/media?parent=178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/adn-academy.com\/en\/wp-json\/wp\/v2\/categories?post=178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/adn-academy.com\/en\/wp-json\/wp\/v2\/tags?post=178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}