{"id":35882,"date":"2026-05-02T17:47:37","date_gmt":"2026-05-02T16:47:37","guid":{"rendered":"https:\/\/jegharkraeft.dk\/?p=35882"},"modified":"2026-05-02T17:48:52","modified_gmt":"2026-05-02T16:48:52","slug":"omega-3","status":"publish","type":"post","link":"https:\/\/jegharkraeft.dk\/en\/omega-3\/","title":{"rendered":"Fish oil \u2013 Omega-3 and cancer. Omega3"},"content":{"rendered":"\n<div class=\"wp-block-group alignfull is-style-section-5 has-contrast-color has-base-background-color has-text-color has-background has-link-color wp-elements-50112d6e71f967288997e16741c4a768 has-global-padding is-layout-constrained wp-block-group-is-layout-constrained is-style-section-5--2\" id=\"menu\" style=\"margin-top:0;margin-bottom:0;padding-top:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-ca2dd60b wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading has-custom-int-link-p-sort-1-color has-text-color has-link-color wp-elements-a867a5e69af727a1b962d2b1d75fb9e7\"><span class=\"ez-toc-section\" id=\"Dietary_Supplements_Grouped_by_Effect\"><\/span><a href=\"https:\/\/jegharkraeft.dk\/en\/kosttilskud-grupperet\/\"><\/a><a href=\"https:\/\/jegharkraeft.dk\/en\/kosttilskud-grupperet\/\">Dietary Supplements Grouped by Effect<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Dietary_Supplements_Alphabetical\"><\/span><a href=\"https:\/\/jegharkraeft.dk\/en\/supplements-alphabetically\/\">Dietary Supplements Alphabetical<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h4 class=\"wp-block-heading has-custom-int-link-p-sort-1-color has-text-color has-link-color wp-elements-2d71cb5b1832ad3e916da8220a6cca8c\"><a href=\"https:\/\/jegharkraeft.dk\/en\/acai-berries-and-cancer\/\">A,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/baicalin\/\">B,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/cats-claw-tomentosa\/\">C,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/danshen\/\">D,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/echinacea\/\">E+F,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/garcinia-cambogia\/\">G,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/hemp-seeds\/\">H,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/indol-3-carbinol\/\">I+J+K,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/lions-mane\/\">L,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/maitake\/\">M,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/?p=35837\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-hvid-tekst-color\">N,<\/mark><\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/omega-3\/\">O,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/peppermint\/pebermynte\/\">P<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-interne-links-color\">,<\/mark><\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/quercetin\/\">Q,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/reishi\/\">R,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/selenium\/\">S,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/thc-cannabis\/\">T,<\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-sort-tekst-color\">.<\/mark> <a href=\"https:\/\/jegharkraeft.dk\/en\/vitamin-b\/\">U+V+Z<\/a><\/h4>\n\n\n\n<ul class=\"wp-block-list has-custom-hvid-tekst-color has-text-color has-link-color wp-elements-d182de698467037c2f5fe0a1109c234f\">\n<li class=\"has-custom-her-st-r-du-color has-text-color has-link-color wp-elements-5895dacb7620915ca4621a9680a5510f\"><a href=\"#omega-3\">Omega 3 (scroll down)<\/a><\/li>\n\n\n\n<li class=\"has-custom-int-link-p-sort-1-color has-text-color has-link-color wp-elements-12ceb2cadae5d8fa3133b9d8a821408f\"><a href=\"https:\/\/jegharkraeft.dk\/en\/opc-grape-seed-extract\/\">OPC\/ Grape seed extract<\/a><\/li>\n\n\n\n<li class=\"has-custom-int-link-p-sort-1-color has-text-color has-link-color wp-elements-3f8a6641d2ad37d3d0fe4377b3bdca93\"><a href=\"https:\/\/jegharkraeft.dk\/en\/oregano-oil\/\">Oregano oil<\/a><\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1257\" height=\"1257\" src=\"https:\/\/jegharkraeft.dk\/wp-content\/uploads\/2025\/02\/bOmega-3.jpg\" alt=\"Omega-3 fiskeolie illustreret ved et brunt pilleglas fra MCS Formulas med p\u00e5skriften Omega-3, Pure.\" class=\"wp-image-35881\" style=\"aspect-ratio:3\/2;object-fit:cover;width:550px\" srcset=\"https:\/\/jegharkraeft.dk\/wp-content\/uploads\/2025\/02\/bOmega-3.jpg 1257w, https:\/\/jegharkraeft.dk\/wp-content\/uploads\/2025\/02\/bOmega-3-300x300.jpg 300w, https:\/\/jegharkraeft.dk\/wp-content\/uploads\/2025\/02\/bOmega-3-100x100.jpg 100w, https:\/\/jegharkraeft.dk\/wp-content\/uploads\/2025\/02\/bOmega-3-600x600.jpg 600w, https:\/\/jegharkraeft.dk\/wp-content\/uploads\/2025\/02\/bOmega-3-1024x1024.jpg 1024w, https:\/\/jegharkraeft.dk\/wp-content\/uploads\/2025\/02\/bOmega-3-150x150.jpg 150w, https:\/\/jegharkraeft.dk\/wp-content\/uploads\/2025\/02\/bOmega-3-768x768.jpg 768w\" sizes=\"auto, (max-width: 1257px) 100vw, 1257px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull is-style-default has-global-padding is-layout-constrained wp-container-core-group-is-layout-b040ace0 wp-block-group-is-layout-constrained has-background\" style=\"margin-top:0;margin-bottom:0;padding-top:var(--wp--preset--spacing--60);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--60);padding-left:var(--wp--preset--spacing--20);background-image:url(&apos;http:\/\/jegharkraeft.dk\/wp-content\/uploads\/2025\/02\/bOmega-3.jpg&apos;);background-position:44% 36%;background-size:cover;\">\n<div class=\"gb-element-906497af\">\n<h1 class=\"wp-block-heading\" id=\"omega-3\"><span class=\"ez-toc-section\" id=\"Fish_Oil_%E2%80%93_Omega-3_and_Cancer\"><\/span>Fish Oil &#8211; Omega-3 and Cancer<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<h4 class=\"wp-block-heading\">What is Omega-3<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Omega-3 belongs to the group of polyunsaturated fatty acids, which the body cannot produce itself. It is therefore essential, meaning that we must obtain it through our diet. Omega-3 is found in high concentrations in fatty fish such as salmon, mackerel, and herring, as well as in certain plant-based foods such as flaxseeds and walnuts.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Use<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Omega-3 is primarily used as a dietary supplement, but is also consumed naturally through the diet. It has been studied for its potential health benefits.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Effects_of_Omega-3\"><\/span>Effects of Omega-3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h4 class=\"wp-block-heading\">Cardiovascular Diseases<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Omega-3 can help lower triglycerides and reduce blood pressure. Omega-3 also helps keep blood vessels elastic and thus reduce the risk of blood clots.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Inflammation<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Omega-3 has anti-inflammatory properties that can be beneficial in conditions such as arthritis and inflammatory bowel diseases. In addition, it is important to minimize inflammation when you have cancer.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Brain Function<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">There are promising signs that omega-3 can improve memory, concentration, and protect against cognitive decline.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Eye Health<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Omega-3 is important for the structure and function of the eye, and can help prevent age-related macular degeneration.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Protecting Cells from Damage<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Omega-3 acts as an antioxidant, protecting cells from damage caused by free radicals.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Healthier Skin<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Omega-3 can improve the skin&#8217;s moisture balance and reduce inflammation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Laboratory_Studies\"><\/span>Laboratory Studies<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It has been shown that omega-3 fatty acids can inhibit the growth of cancer cells by inducing programmed cell death (apoptosis) [5].<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Clinical Trials<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Several clinical studies indicate that fish oil supplements can extend survival in cancer patients, especially in combination with other relevant treatments. Additionally, results suggest that fish oil can increase the effectiveness of chemotherapy and also reduce side effects [1, 2, 3, 4].<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Benefits_of_Omega-3_in_Cancer\"><\/span>Benefits of Omega-3 in Cancer<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Through both laboratory studies and clinical trials, promising results have been found indicating that fish oil can have a positive impact on cancer cells. Specifically, there is talk of the omega-3 fatty acids EPA and DHA in relation to cancer treatment.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Inhibits Cancer Cell Division<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Omega-3 fatty acids can apparently directly affect cancer cells&#8217; ability to divide [5].<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Induces Cell Death<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Fish oil can trigger a process where cancer cells self-destruct [5].<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Increases the Effectiveness of Chemotherapy<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Fish oil can potentially make chemotherapy more effective and reduce the need for higher doses [4].<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Protective Effect<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Some studies suggest a protective effect, especially against certain types of cancer such as colon cancer [1, 2, 3].<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Extends Survival<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Several studies suggest that fish oil can improve survival rates in cancer patients [1, 2, 3, 11].<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Reduces Side Effects<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Some studies indicate that fish oil can reduce the side effects of chemotherapy [4].<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Disadvantages_and_Limitations\"><\/span>Disadvantages and Limitations<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Although omega-3 is generally well tolerated, side effects may occur in some people, including:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Digestive Problems<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Nausea, vomiting, diarrhea, and heartburn.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Bleeding<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Omega-3 can increase the risk of bleeding, especially in people who are also taking blood-thinning medications.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Allergic Reactions<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Although it is rare, some people may be allergic to fish or shellfish. In such cases, they should be aware of getting enough omega-3 from other sources, e.g., through supplements that do not contain fish and shellfish (this can be algae-based, for example).<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Interactions with Other Factors<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Omega-3 can interact with other substances in the body and thus affect the effectiveness of other cancer treatments.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Not a Replacement for Other Relevant Treatment<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The use of fish oil should be seen as a supplement to, and not a replacement for, conventional cancer treatment.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Use_of_Omega-3_Fish_Oil\"><\/span>Use of Omega-3 Fish Oil<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Fish oil is being investigated as a potential supplement to relevant cancer treatment. It may be particularly appropriate for patients with advanced cancer or those experiencing side effects from chemotherapy.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Supplements vs. Food<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">It is important to distinguish between omega-3 from dietary supplements and omega-3 from food. While some studies have investigated the effect of supplements, others focus on the intake of fish, which is a natural source of omega-3.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Other Factors<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Many factors can affect the relationship between omega-3 and cancer, including cancer type, omega-3 dosage, duration of intake, as well as other lifestyle choices and genetic factors.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Note\"><\/span>Note<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It is crucial to emphasize that fish oil should not be considered a cure for cancer in isolation. Decisions to include fish oil in a cancer treatment plan should always be made in collaboration with a qualified healthcare provider.<\/p>\n\n\n<h2 id=\"tablepress-98-name\" class=\"tablepress-table-name tablepress-table-name-id-98\"><span class=\"ez-toc-section\" id=\"Fatty_acid_distribution_in_cooking_oil\"><\/span>Fatty acid distribution in cooking oil<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<table id=\"tablepress-98\" class=\"tablepress tablepress-id-98\" aria-labelledby=\"tablepress-98-name\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Oil<\/th><th class=\"column-2\">Saturated fat<\/th><th class=\"column-3\">Omega-3 (ALA)<\/th><th class=\"column-4\">Oil<\/th><th class=\"column-5\">Omega-6 (LA)<\/th><th class=\"column-6\">Omega-9 (Oleic acid)<\/th><th class=\"column-7\">Smoke point<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Canola oil (Rapeseed)<\/td><td class=\"column-2\">7%<\/td><td class=\"column-3\">9-11%<\/td><td class=\"column-4\">Canola oil (Rapeseed)<\/td><td class=\"column-5\">19-21%<\/td><td class=\"column-6\">60-63%<\/td><td class=\"column-7\">204\u00b0C<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Olive oil (Extra Virgin)<\/td><td class=\"column-2\">14%<\/td><td class=\"column-3\">1%<\/td><td class=\"column-4\">Olive oil (Extra Virgin)<\/td><td class=\"column-5\">10%<\/td><td class=\"column-6\">73-75%<\/td><td class=\"column-7\">190\u00b0C<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">Flaxseed oil (Linseed oil)<\/td><td class=\"column-2\">9%<\/td><td class=\"column-3\">53-57%<\/td><td class=\"column-4\">Flaxseed oil (Linseed oil)<\/td><td class=\"column-5\">15-16%<\/td><td class=\"column-6\">18-20%<\/td><td class=\"column-7\">107\u00b0C<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Sunflower oil<\/td><td class=\"column-2\">10-12%<\/td><td class=\"column-3\">1%<\/td><td class=\"column-4\">Sunflower oil<\/td><td class=\"column-5\">65-70%<\/td><td class=\"column-6\">20%<\/td><td class=\"column-7\">225\u00b0C<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">Grapeseed oil<\/td><td class=\"column-2\">10%<\/td><td class=\"column-3\">1%<\/td><td class=\"column-4\">Grapeseed oil<\/td><td class=\"column-5\">70%<\/td><td class=\"column-6\">16%<\/td><td class=\"column-7\">216\u00b0C<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">Coconut oil<\/td><td class=\"column-2\">86-90%<\/td><td class=\"column-3\">0%<\/td><td class=\"column-4\">Coconut oil<\/td><td class=\"column-5\">2%<\/td><td class=\"column-6\">6%<\/td><td class=\"column-7\">177\u00b0C<\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">Avocado oil<\/td><td class=\"column-2\">12%<\/td><td class=\"column-3\">1%<\/td><td class=\"column-4\">Avocado oil<\/td><td class=\"column-5\">13%<\/td><td class=\"column-6\">71%<\/td><td class=\"column-7\">271\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-98 from cache -->\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">While omega-3 fatty acids are important for our health, it is too early to draw definitive conclusions about their role in the prevention and treatment of cancer. However, there are studies indicating that omega-3 has a beneficial effect in cancer treatment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At the same time, there are some studies that may indicate a possible increased risk of prostate cancer with higher intake of omega-3 oils.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A healthy and balanced <a href=\"https:\/\/jegharkraeft.dk\/en\/kost-morgenmad-frokost\/\" target=\"_blank\" rel=\"noreferrer noopener\">diet<\/a>, which includes a variety of different foods, is still an important way to support your overall health.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Back to <a href=\"https:\/\/jegharkraeft.dk\/en\/supplements-alphabetically\/\" target=\"_blank\" rel=\"noreferrer noopener\">Supplements<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"omega-3\">Se also <a href=\"https:\/\/jegharkraeft.dk\/en\/kost-morgenmad-frokost\/\" target=\"_blank\" rel=\"noreferrer noopener\">Diet<\/a><\/p>\n\n\n\n<p class=\"has-custom-menu-links-color has-text-color has-link-color wp-elements-9d2415ef6d0ec3e5c3b9ae34311755a3 wp-block-paragraph\"><a href=\"#menu\">(to menu)<\/a><a href=\"https:\/\/jegharkraeft.dk\/en\/kost-morgenmad-frokost\/\"><\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Links<\/h4>\n\n\n\n<p class=\"has-custom-sort-tekst-color has-text-color has-link-color wp-elements-eed4df78d630d840fca8978466d1880d wp-block-paragraph\">[1] <a href=\"https:\/\/ugeskriftet.dk\/videnskab\/d-vitamin-og-omega-3-fedtsyrer-som-primaer-praevention-kraeft-og-hjerte-kar-sygdomme\" target=\"_blank\" rel=\"noreferrer noopener\">D-vitamin og omega-3-fedtsyrer som prim\u00e6r pr\u00e6vention for kr\u00e6ft og hjerte-kar-sygdomme<\/a> (Ugeskrift for L\u00e6ger, 2018) <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Content: Clinical review article discussing the primary prevention of cancer and cardiovascular diseases through vitamin D and omega-3 fatty acids, summarizing evidence from large-scale studies. (Danish Language)<\/li>\n<\/ul>\n\n\n\n<p class=\"has-custom-sort-tekst-color has-text-color has-link-color wp-elements-2bbec7090e99cb56e4f2b8d79423b2bf wp-block-paragraph\">[2] <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/25936773\/\" target=\"_blank\" rel=\"noreferrer noopener\">Omega-3 fatty acids for breast cancer prevention and survivorship<\/a> (PubMed, 2015) <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Content: Review article examining the role of omega-3 fatty acids in breast cancer prevention and survivorship, discussing epidemiological evidence and potential mechanisms.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-custom-sort-tekst-color has-text-color has-link-color wp-elements-51cffc643e3804d7bec00e5f79f6f2a8 wp-block-paragraph\">[3] <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/32393071\/\" target=\"_blank\" rel=\"noreferrer noopener\">Omega-3 Polyunsaturated Fatty Acids and Lung Cancer<\/a> (PubMed, 2021) <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Content: Meta-analysis investigating the association between omega-3 polyunsaturated fatty acids and lung cancer risk, analyzing data from multiple cohort and case-control studies.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-custom-sort-tekst-color has-text-color has-link-color wp-elements-fd5344a876e56f80de3d06d51149edec wp-block-paragraph\">[4] <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/31035457\/\" target=\"_blank\" rel=\"noreferrer noopener\">Protective Effects of Omega-3 Fatty Acids in Cancer-Related Complications<\/a> (PubMed, 2019) <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Content: Review article discussing the protective effects of omega-3 fatty acids in cancer-related complications, including cachexia, chemotherapy-induced side effects, and inflammation.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-custom-sort-tekst-color has-text-color has-link-color wp-elements-11ad650d58cd9982b89058c17544ac0f wp-block-paragraph\">[5] <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/34118189\/\" target=\"_blank\" rel=\"noreferrer noopener\">Peroxidation of n-3 and n-6 polyunsaturated fatty acids in the acidic tumor environment leads to ferroptosis-mediated anticancer effects<\/a> (PubMed, 2021) <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Content: In vitro study demonstrating how the peroxidation of n-3 and n-6 polyunsaturated fatty acids in the acidic tumor environment can lead to ferroptosis-mediated anti-cancer effects, providing insights into lipid metabolism in cancer therapy.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-custom-sort-tekst-color has-text-color has-link-color wp-elements-4d9963dcabf1ef811a2ec9f8ff28a0c7 wp-block-paragraph\">[6] <a href=\"https:\/\/sund-forskning.dk\/artikler\/omega-3-fra-fisk-har-storst-cancerhaemmende-virkning\/\" target=\"_blank\" rel=\"noreferrer noopener\">Omega-3 fra fisk har st\u00f8rst cancerh\u00e6mmende virkning<\/a> (Sundforskning, 2018) <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Content: Danish article summarizing research on the cancer-inhibiting effects of omega-3 from fish, discussing its mechanisms and potential applications in cancer prevention. (Danish Language)<\/li>\n<\/ul>\n\n\n\n<p class=\"has-custom-sort-tekst-color has-text-color has-link-color wp-elements-dbb60e6e1f36f1f2e880ac659241c687 wp-block-paragraph\">[7] <a href=\"https:\/\/sund-forskning.dk\/artikler\/omega-3-fedtsyrer-saenker-risikoen-brystkraeft\/\" target=\"_blank\" rel=\"noreferrer noopener\">Omega-3 fedtsyrer s\u00e6nker risikoen for brystkr\u00e6ft<\/a> (Sundforskning, 2013) <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Content: Danish article reporting on studies showing that omega-3 fatty acids can reduce the risk of breast cancer, explaining the biological mechanisms behind this effect. (Danish Language)<\/li>\n<\/ul>\n\n\n\n<p class=\"has-custom-sort-tekst-color has-text-color has-link-color wp-elements-433a4b145fee86b5a7336cdf1995b970 wp-block-paragraph\">[8] <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/39895102\/\" target=\"_blank\" rel=\"noreferrer noopener\">Alpha-linolenic acid-mediated epigenetic reprogramming of cervical cancer cell lines<\/a> (PubMed, 2025) <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Content: In vitro study showing that omega-3 fatty acid ALA (alpha-linolenic acid) can inhibit the growth of cervical cancer cells. ALA works by adjusting the cells&#8217; &#8220;epigenetic contacts,&#8221; which both turns off cancer-promoting genes and reactivates the body&#8217;s own built-in cancer-inhibiting genes.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-custom-sort-tekst-color has-text-color has-link-color wp-elements-4fbd4b7a0d06a31479ffed051082c0b6 wp-block-paragraph\">[9] <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40349644\/\" target=\"_blank\" rel=\"noreferrer noopener\">Effect of omega-3 and omega-6 fatty acids on tumor suppressor pathways in mice tongue oral epithelial dysplasia<\/a> (PubMed, 2025) <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Content: Animal study where mice on a diet rich in omega-6 fatty acids (from corn oil) developed significantly more precursors to tongue cancer than mice on a diet rich in omega-3 (from fish oil). The study concludes that a higher intake of omega-3 and a lower intake of omega-6 may be an important preventive strategy.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-custom-sort-tekst-color has-text-color has-link-color wp-elements-4e4362c0669bd2c3a700a7b3dbb6590d wp-block-paragraph\">[10] <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40122242\/\" target=\"_blank\" rel=\"noreferrer noopener\">Unsaturated fatty acid-doped liposomes deliver piperine to deactivate defensive mechanism for ferroptosis in cancer therapy<\/a> (PubMed, 2025) <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Content: In vitro study where a new system kills cancer cells via a process called ferroptosis (a form of cell death) by using a combination of the fatty acid DHA and piperine (from black pepper). The combination works by simultaneously deactivating the cancer cell&#8217;s two most important defense systems (GPX4 and DHODH) against this type of attack.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-custom-sort-tekst-color has-text-color has-link-color wp-elements-601c3366692c3d216f34abd6fbc2d7f7 wp-block-paragraph\">[11] <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40481119\/\" target=\"_blank\" rel=\"noreferrer noopener\">Effects of polyunsaturated fatty acids on gastric cancer immunity and immunotherapy<\/a> (PubMed, 2025) <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Content: Clinical study of patients with advanced gastric cancer in immunotherapy showing that the balance between omega-6 and omega-3 fatty acids is crucial for treatment outcome. A lower omega-6\/omega-3 ratio in the blood was associated with a better immune response in the tumor and significantly longer survival.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-custom-sort-tekst-color has-text-color has-link-color wp-elements-b899db2d15b3600d689d14aa92ec7ea4 wp-block-paragraph\">[12] <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40430008\/\" target=\"_blank\" rel=\"noreferrer noopener\">Nutrigenetics and Omega-3 and Gamma-Linolenic Acid Intake and Status in Patients with Cancer: A PRISMA Scoping Review of Research Trends and Challenges<\/a> (PubMed, 2025) <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Content: Scoping review suggesting that genetic variations in the fat-metabolizing genes FADS1 and FADS2 are a likely explanation for why dietary fatty acids affect cancer risk differently from person to person. The research area is still very new, and there is still a lack of solid knowledge about the interaction between diet, genes, and cancer.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-custom-sort-tekst-color has-text-color has-link-color wp-elements-c8e2775ffa753c9dccdb929171920e2a wp-block-paragraph\">[13] <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40320870\/\" target=\"_blank\" rel=\"noreferrer noopener\">Synergic Effects and Possible Mechanism of Omega-6 Fatty Acids (\u03c9-6) on Immune System, Inflammation, and Cancer<\/a> (PubMed, 2025) <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Content: Review article discussing how omega-6 fatty acids have a critical dual role in relation to cancer: Depending on how they are metabolized in the body, they can either create substances that promote inflammation and cancer growth, or substances that actively suppress inflammation. Since modern diets are often too rich in omega-6, the balance in relation to omega-3 in the diet is crucial.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-custom-sort-tekst-color has-text-color has-link-color wp-elements-c95da11fb297244ee3823e792453f0c2 wp-block-paragraph\"><strong>Page created:<\/strong> August 19, 2024, Last revised May 2, 2026<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-custom-menu-links-color\">\u2764<\/mark><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>What you read on &#8220;Jeg har Kr\u00e6ft&#8221; is not a recommendation. Seek competent guidance.<\/em><\/strong><\/p>\n<\/div>\n<\/div>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Indhold<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/jegharkraeft.dk\/en\/omega-3\/#Dietary_Supplements_Grouped_by_Effect\" >Dietary Supplements Grouped by Effect<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/jegharkraeft.dk\/en\/omega-3\/#Dietary_Supplements_Alphabetical\" >Dietary Supplements Alphabetical<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/jegharkraeft.dk\/en\/omega-3\/#Fish_Oil_%E2%80%93_Omega-3_and_Cancer\" >Fish Oil &#8211; Omega-3 and Cancer<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/jegharkraeft.dk\/en\/omega-3\/#Effects_of_Omega-3\" >Effects of Omega-3<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/jegharkraeft.dk\/en\/omega-3\/#Laboratory_Studies\" >Laboratory Studies<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/jegharkraeft.dk\/en\/omega-3\/#Benefits_of_Omega-3_in_Cancer\" >Benefits of Omega-3 in Cancer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/jegharkraeft.dk\/en\/omega-3\/#Disadvantages_and_Limitations\" >Disadvantages and Limitations<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/jegharkraeft.dk\/en\/omega-3\/#Use_of_Omega-3_Fish_Oil\" >Use of Omega-3 Fish Oil<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/jegharkraeft.dk\/en\/omega-3\/#Note\" >Note<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/jegharkraeft.dk\/en\/omega-3\/#Fatty_acid_distribution_in_cooking_oil\" >Fatty acid distribution in cooking oil<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/jegharkraeft.dk\/en\/omega-3\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Dietary Supplements Grouped by Effect Dietary Supplements Alphabetical A,. B,. C,. D,. E+F,. G,. H,. I+J+K,. L,. M,. N,. O,. P,. Q,. R,. S,. T,. U+V+Z Fish Oil &#8211; Omega-3 and Cancer What is Omega-3 Omega-3 belongs to the group of polyunsaturated fatty acids, which the body cannot produce itself. It is therefore essential, meaning [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":35881,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[389,375,374],"tags":[],"class_list":["post-35882","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-supplements","category-alternative-treatments","category-treatments"],"modified_by":"Hanne Kj\u00e6r Uhlig","wpml_current_locale":"en_US","wpml_translations":[],"_links":{"self":[{"href":"https:\/\/jegharkraeft.dk\/en\/wp-json\/wp\/v2\/posts\/35882","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jegharkraeft.dk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jegharkraeft.dk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jegharkraeft.dk\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jegharkraeft.dk\/en\/wp-json\/wp\/v2\/comments?post=35882"}],"version-history":[{"count":4,"href":"https:\/\/jegharkraeft.dk\/en\/wp-json\/wp\/v2\/posts\/35882\/revisions"}],"predecessor-version":[{"id":35896,"href":"https:\/\/jegharkraeft.dk\/en\/wp-json\/wp\/v2\/posts\/35882\/revisions\/35896"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jegharkraeft.dk\/en\/wp-json\/wp\/v2\/media\/35881"}],"wp:attachment":[{"href":"https:\/\/jegharkraeft.dk\/en\/wp-json\/wp\/v2\/media?parent=35882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jegharkraeft.dk\/en\/wp-json\/wp\/v2\/categories?post=35882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jegharkraeft.dk\/en\/wp-json\/wp\/v2\/tags?post=35882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}