{"id":39401,"date":"2024-06-04T09:08:38","date_gmt":"2024-06-04T09:08:38","guid":{"rendered":"https:\/\/drlesliekorn.com\/?post_type=research-databases&p=39401"},"modified":"2025-02-25T09:14:25","modified_gmt":"2025-02-25T09:14:25","slug":"omega-3-supplements-rancidity","status":"publish","type":"research-databases","link":"https:\/\/drlesliekorn.com\/es\/research\/omega-3-supplements-rancidity\/","title":{"rendered":"Is Your Omega-3 Supplement Rancid? It Shouldn\u2019t Be!"},"content":{"rendered":"\n
\"A<\/figure>\n\n\n\n

I don\u2019t often get into the (sea)weeds about the chemical analysis of fish oil but this study caught my eye because my students are always asking about why they burp up the taste of fish (low-quality fish oil), which fish oil to take and if it becomes rancid. <\/p>\n\n\n\n

Rancidity occurs in response to oxygen exposure, also called oxidation. According to this large study of 72 different fish oils in various forms (liquid, capsules, etc.), yes, it does! They found nearly half of the oils had oxidized, meaning they underwent chemical changes. The researchers suggest that flavored oils are meant to hide the rancid smell. Good quality oil should not smell fishy at all. <\/p>\n\n\n\n

I did some digging and was pleased to find that 3 of my favorite oils, Nordic Naturals, Barleans, and Carlson\u2019s were among the freshest. People might supplement with Vitamin E when taking fish oil to counteract oxidation.<\/p>\n\n\n\n

 Maintaining optimal levels of Omega 3 fatty acids has been well-researched and validated. In my practice, I use the Omega Quant Complete blood spot test<\/strong><\/a> of omega-3 levels as a dosing indicator. It is convenient as they send the text kit to your home. However, over time, the research has influenced my thinking about fish being a better source of omega-3s than supplements, which I encourage. Fish like sardines, herring, canned wild salmon, and anchovies are both inexpensive and among the best seafood to incorporate into daily diet.  <\/p>\n","protected":false},"excerpt":{"rendered":"

Delving into fish oil quality: a study on freshness reveals common oxidation and rancidity on omega-3 supplements; highlighting the need to get omega-3 from food sources and choose fish supplements wisely.<\/p>\n","protected":false},"author":3,"featured_media":39405,"menu_order":19,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":true,"inline_featured_image":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"research-categories":[1568,1539],"class_list":{"0":"post-39401","1":"research-databases","2":"type-research-databases","3":"status-publish","4":"has-post-thumbnail","6":"research-categories-antioxidants","7":"research-categories-supplements","8":"entry"},"acf":[],"yoast_head":"\nIs Your Omega-3 Supplement Rancid? It Shouldn\u2019t Be! | Dr. Leslie Korn<\/title>\n<meta name=\"description\" content=\"Your Omega-3 supplements should not be rancid. A study on freshness reveals common oxidation and rancidity on omega-3 supplements.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/drlesliekorn.com\/es\/research\/omega-3-supplements-rancidity\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Is Your Omega-3 Supplement Rancid? It Shouldn\u2019t Be! | Dr. Leslie Korn\" \/>\n<meta property=\"og:description\" content=\"Delving into fish oil quality: a study on freshness reveals common oxidation and rancidity on omega-3 supplements; highlighting the need to get omega-3 from food sources and choose fish supplements wisely.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/drlesliekorn.com\/es\/research\/omega-3-supplements-rancidity\/\" \/>\n<meta property=\"og:site_name\" content=\"Dr. Leslie Korn\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/drlesliekorn1\" \/>\n<meta property=\"article:modified_time\" content=\"2025-02-25T09:14:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/drlesliekorn.com\/wp-content\/uploads\/2024\/04\/A-Multi-Year-Rancidity-Analysis-of-72-Marine-and-Microalgal-Oil-Omega-3-Supplements-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1707\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/drlesliekorn.com\\\/es\\\/research\\\/omega-3-supplements-rancidity\\\/\",\"url\":\"https:\\\/\\\/drlesliekorn.com\\\/es\\\/research\\\/omega-3-supplements-rancidity\\\/\",\"name\":\"Is Your Omega-3 Supplement Rancid? It Shouldn\u2019t Be! | Dr. Leslie Korn\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/drlesliekorn.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/drlesliekorn.com\\\/es\\\/research\\\/omega-3-supplements-rancidity\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/drlesliekorn.com\\\/es\\\/research\\\/omega-3-supplements-rancidity\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/drlesliekorn.com\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/A-Multi-Year-Rancidity-Analysis-of-72-Marine-and-Microalgal-Oil-Omega-3-Supplements-scaled.jpg\",\"datePublished\":\"2024-06-04T09:08:38+00:00\",\"dateModified\":\"2025-02-25T09:14:25+00:00\",\"description\":\"Your Omega-3 supplements should not be rancid. A study on freshness reveals common oxidation and rancidity on omega-3 supplements.\",\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/drlesliekorn.com\\\/es\\\/research\\\/omega-3-supplements-rancidity\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/drlesliekorn.com\\\/es\\\/research\\\/omega-3-supplements-rancidity\\\/#primaryimage\",\"url\":\"https:\\\/\\\/drlesliekorn.com\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/A-Multi-Year-Rancidity-Analysis-of-72-Marine-and-Microalgal-Oil-Omega-3-Supplements-scaled.jpg\",\"contentUrl\":\"https:\\\/\\\/drlesliekorn.com\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/A-Multi-Year-Rancidity-Analysis-of-72-Marine-and-Microalgal-Oil-Omega-3-Supplements-scaled.jpg\",\"width\":2560,\"height\":1707,\"caption\":\"A Multi-Year Rancidity Analysis of 72 Marine and Microalgal Oil Omega-3 Supplements\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/drlesliekorn.com\\\/#website\",\"url\":\"https:\\\/\\\/drlesliekorn.com\\\/\",\"name\":\"Dr. Leslie Korn\",\"description\":\"Integrative Medicine with Heart\",\"publisher\":{\"@id\":\"https:\\\/\\\/drlesliekorn.com\\\/#\\\/schema\\\/person\\\/5ccfb74a0c80a3e8905c14756907556d\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/drlesliekorn.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"es\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https:\\\/\\\/drlesliekorn.com\\\/#\\\/schema\\\/person\\\/5ccfb74a0c80a3e8905c14756907556d\",\"name\":\"Leslie Korn, PhD, MPH\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/drlesliekorn.com\\\/wp-content\\\/uploads\\\/2022\\\/02\\\/dr-leslie-korn-logo-color-v.png\",\"url\":\"https:\\\/\\\/drlesliekorn.com\\\/wp-content\\\/uploads\\\/2022\\\/02\\\/dr-leslie-korn-logo-color-v.png\",\"contentUrl\":\"https:\\\/\\\/drlesliekorn.com\\\/wp-content\\\/uploads\\\/2022\\\/02\\\/dr-leslie-korn-logo-color-v.png\",\"width\":2015,\"height\":1912,\"caption\":\"Leslie Korn, PhD, MPH\"},\"logo\":{\"@id\":\"https:\\\/\\\/drlesliekorn.com\\\/wp-content\\\/uploads\\\/2022\\\/02\\\/dr-leslie-korn-logo-color-v.png\"},\"description\":\"Leslie Korn, PhD, MPH, is a Doctor of Behavioral Medicine and a pioneer in natural and integrative medicine for mental health and chronic illness. She is the author of 10 books and the developer of the Brainbow Blueprint\u00ae model. She served as a Fulbright scholar on traditional medicine, a Clinical Fellow at Harvard Medical School, and a National Institutes of Health-funded research scientist in mind\\\/body medicine.\",\"sameAs\":[\"https:\\\/\\\/drlesliekorn.com\",\"https:\\\/\\\/www.facebook.com\\\/drlesliekorn1\",\"https:\\\/\\\/www.instagram.com\\\/dr.lesliekorn\\\/?hl=en\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/dr-leslie-korn-5455135\"]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Is Your Omega-3 Supplement Rancid? It Shouldn\u2019t Be! | Dr. Leslie Korn","description":"Your Omega-3 supplements should not be rancid. A study on freshness reveals common oxidation and rancidity on omega-3 supplements.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/drlesliekorn.com\/es\/research\/omega-3-supplements-rancidity\/","og_locale":"es_ES","og_type":"article","og_title":"Is Your Omega-3 Supplement Rancid? It Shouldn\u2019t Be! | Dr. Leslie Korn","og_description":"Delving into fish oil quality: a study on freshness reveals common oxidation and rancidity on omega-3 supplements; highlighting the need to get omega-3 from food sources and choose fish supplements wisely.","og_url":"https:\/\/drlesliekorn.com\/es\/research\/omega-3-supplements-rancidity\/","og_site_name":"Dr. Leslie Korn","article_publisher":"https:\/\/www.facebook.com\/drlesliekorn1","article_modified_time":"2025-02-25T09:14:25+00:00","og_image":[{"width":2560,"height":1707,"url":"https:\/\/drlesliekorn.com\/wp-content\/uploads\/2024\/04\/A-Multi-Year-Rancidity-Analysis-of-72-Marine-and-Microalgal-Oil-Omega-3-Supplements-scaled.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Tiempo de lectura":"2 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/drlesliekorn.com\/es\/research\/omega-3-supplements-rancidity\/","url":"https:\/\/drlesliekorn.com\/es\/research\/omega-3-supplements-rancidity\/","name":"Is Your Omega-3 Supplement Rancid? It Shouldn\u2019t Be! | Dr. Leslie Korn","isPartOf":{"@id":"https:\/\/drlesliekorn.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/drlesliekorn.com\/es\/research\/omega-3-supplements-rancidity\/#primaryimage"},"image":{"@id":"https:\/\/drlesliekorn.com\/es\/research\/omega-3-supplements-rancidity\/#primaryimage"},"thumbnailUrl":"https:\/\/drlesliekorn.com\/wp-content\/uploads\/2024\/04\/A-Multi-Year-Rancidity-Analysis-of-72-Marine-and-Microalgal-Oil-Omega-3-Supplements-scaled.jpg","datePublished":"2024-06-04T09:08:38+00:00","dateModified":"2025-02-25T09:14:25+00:00","description":"Your Omega-3 supplements should not be rancid. A study on freshness reveals common oxidation and rancidity on omega-3 supplements.","inLanguage":"es","potentialAction":[{"@type":"ReadAction","target":["https:\/\/drlesliekorn.com\/es\/research\/omega-3-supplements-rancidity\/"]}]},{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/drlesliekorn.com\/es\/research\/omega-3-supplements-rancidity\/#primaryimage","url":"https:\/\/drlesliekorn.com\/wp-content\/uploads\/2024\/04\/A-Multi-Year-Rancidity-Analysis-of-72-Marine-and-Microalgal-Oil-Omega-3-Supplements-scaled.jpg","contentUrl":"https:\/\/drlesliekorn.com\/wp-content\/uploads\/2024\/04\/A-Multi-Year-Rancidity-Analysis-of-72-Marine-and-Microalgal-Oil-Omega-3-Supplements-scaled.jpg","width":2560,"height":1707,"caption":"A Multi-Year Rancidity Analysis of 72 Marine and Microalgal Oil Omega-3 Supplements"},{"@type":"WebSite","@id":"https:\/\/drlesliekorn.com\/#website","url":"https:\/\/drlesliekorn.com\/","name":"Dr. Leslie Korn","description":"Integrative Medicine with Heart","publisher":{"@id":"https:\/\/drlesliekorn.com\/#\/schema\/person\/5ccfb74a0c80a3e8905c14756907556d"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/drlesliekorn.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"es"},{"@type":["Person","Organization"],"@id":"https:\/\/drlesliekorn.com\/#\/schema\/person\/5ccfb74a0c80a3e8905c14756907556d","name":"Leslie Korn, PhD, MPH","image":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/drlesliekorn.com\/wp-content\/uploads\/2022\/02\/dr-leslie-korn-logo-color-v.png","url":"https:\/\/drlesliekorn.com\/wp-content\/uploads\/2022\/02\/dr-leslie-korn-logo-color-v.png","contentUrl":"https:\/\/drlesliekorn.com\/wp-content\/uploads\/2022\/02\/dr-leslie-korn-logo-color-v.png","width":2015,"height":1912,"caption":"Leslie Korn, PhD, MPH"},"logo":{"@id":"https:\/\/drlesliekorn.com\/wp-content\/uploads\/2022\/02\/dr-leslie-korn-logo-color-v.png"},"description":"Leslie Korn, PhD, MPH, is a Doctor of Behavioral Medicine and a pioneer in natural and integrative medicine for mental health and chronic illness. She is the author of 10 books and the developer of the Brainbow Blueprint\u00ae model. She served as a Fulbright scholar on traditional medicine, a Clinical Fellow at Harvard Medical School, and a National Institutes of Health-funded research scientist in mind\/body medicine.","sameAs":["https:\/\/drlesliekorn.com","https:\/\/www.facebook.com\/drlesliekorn1","https:\/\/www.instagram.com\/dr.lesliekorn\/?hl=en","https:\/\/www.linkedin.com\/in\/dr-leslie-korn-5455135"]}]}},"_links":{"self":[{"href":"https:\/\/drlesliekorn.com\/es\/wp-json\/wp\/v2\/research-databases\/39401","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/drlesliekorn.com\/es\/wp-json\/wp\/v2\/research-databases"}],"about":[{"href":"https:\/\/drlesliekorn.com\/es\/wp-json\/wp\/v2\/types\/research-databases"}],"author":[{"embeddable":true,"href":"https:\/\/drlesliekorn.com\/es\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/drlesliekorn.com\/es\/wp-json\/wp\/v2\/comments?post=39401"}],"version-history":[{"count":0,"href":"https:\/\/drlesliekorn.com\/es\/wp-json\/wp\/v2\/research-databases\/39401\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/drlesliekorn.com\/es\/wp-json\/wp\/v2\/media\/39405"}],"wp:attachment":[{"href":"https:\/\/drlesliekorn.com\/es\/wp-json\/wp\/v2\/media?parent=39401"}],"wp:term":[{"taxonomy":"research-categories","embeddable":true,"href":"https:\/\/drlesliekorn.com\/es\/wp-json\/wp\/v2\/research-categories?post=39401"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}