{"ok":true,"entry":{"slug":"algal-oil","kind":"supplement","name":"algal oil","aliases":["algae omega-3","vegan DHA","Schizochytrium"],"brands_sg":["Nordic Naturals","Deva","Micro Ingredients","Nature's Way","Nature's Truth"],"class":"omega-3 fatty acid","tags":["heart","general"],"use_for":"dha (sometimes epa) from algae rather than from fish","use_after":null,"use_duration":null,"take_with":"absorption runs ~95%, similar to other ingested fats","pros":["a small study matched its dha uptake to cooked salmon","microalgae make dha; fish accumulate it from them","omega-3 supplements haven't been found to carry mercury"],"cons":["typical algal capsules give only 100–300 mg dha","no ai or daily value exists for dha specifically","4 g/day raised atrial fibrillation risk in cvd trials"],"dose_note":"algal oil products usually supply about 100–300 mg dha, some with epa; efsa and fda treat up to about 5 g/day of epa plus dha as safe when used as recommended","dosage":{"ul":null,"unit":"mg","fda_dv":null,"rda_ai":null,"ul_status":"none_established","population":"general adult","hsa_max_daily":null},"ul_status":"none_established","sg_class":null,"cautions":["on warfarin or antiplatelets — inr monitoring is advised","existing cvd — 4 g/day trials showed more atrial fibrillation","high epa+dha for weeks may blunt immune responses"],"clashes":[{"src":["ods_warfarin"],"note":"omega-3s may prolong clotting time; package inserts advise periodic inr monitoring","with":"warfarin and other anticoagulants"}],"sources":[{"id":"ods_algal","url":"https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/","label":"NIH ODS — Omega-3 Fatty Acids (Health Professional)","quote":"Plant-based sources of omega-3s from algal oil usually provide around 100–300 mg DHA; some contain EPA as well … the bioavailability of DHA from algal oil is equivalent to that from cooked salmon","accessed":"2026-08-27"},{"id":"ods_microalgae","url":"https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/","label":"NIH ODS — Omega-3 Fatty Acids (Health Professional)","quote":"DHA and EPA are present in fish, fish oils, and krill oils, but they are originally synthesized by microalgae at the base of the marine food chain, not by the fish","accessed":"2026-08-27"},{"id":"ods_mercury","url":"https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/","label":"NIH ODS — Omega-3 Fatty Acids (Health Professional)","quote":"Although seafood contains varying levels of methyl mercury (a toxic heavy metal), omega-3 supplements have not been found to contain this contaminant because it is removed during processing and purification","accessed":"2026-08-27"},{"id":"ods_ai","url":"https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/","label":"NIH ODS — Omega-3 Fatty Acids (Health Professional)","quote":"The AIs apply only to ALA because ALA is the only omega-3 that is essential. The IOM did not establish specific intake recommendations for EPA, DHA … 19–50 years 1.6 g (male) 1.1 g (female)","accessed":"2026-08-27"},{"id":"ods_safety","url":"https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/","label":"NIH ODS — Omega-3 Fatty Acids (Health Professional)","quote":"The IOM did not establish a UL for any omega-3s … FDA has concluded that dietary supplements providing no more than 5 g/day EPA and DHA are safe when used as recommended","accessed":"2026-08-27"},{"id":"ods_af","url":"https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/","label":"NIH ODS — Omega-3 Fatty Acids (Health Professional)","quote":"Two large clinical trials … found that taking 4 g/day of omega-3 supplements for several years slightly increased the risk of atrial fibrillation in people with CVD or at high risk of CVD","accessed":"2026-08-27"},{"id":"ods_immune","url":"https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/","label":"NIH ODS — Omega-3 Fatty Acids (Health Professional)","quote":"high doses of DHA and/or EPA (900 mg/day of EPA plus 600 mg/day DHA or more for several weeks) might reduce immune function due to suppression of inflammatory responses","accessed":"2026-08-27"},{"id":"ods_warfarin","url":"https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/","label":"NIH ODS — Omega-3 Fatty Acids (Health Professional)","quote":"Fish oil might prolong clotting times, as indicated by an elevated international normalized ratio (INR), when it is taken with warfarin … patients taking these products with anticoagulants should be monitored periodically for changes in INR","accessed":"2026-08-27"},{"id":"ods_absorb","url":"https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/","label":"NIH ODS — Omega-3 Fatty Acids (Health Professional)","quote":"The process is efficient, with an absorption rate of about 95%, which is similar to that of other ingested fats","accessed":"2026-08-27"},{"id":"ods_nodv","url":"https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/","label":"NIH ODS — Omega-3 Fatty Acids (Health Professional)","quote":"The U.S. Food and Drug Administration (FDA) has established a Daily Value (DV) of 65 g for total fat but not for omega-3s","accessed":"2026-08-27"},{"id":"hsa_pr","url":"https://file.go.gov.sg/hsa-chp-prohibited-restricted-ing-guidelines.pdf","label":"HSA — Guidelines on prohibited and restricted ingredients in health supplements and traditional medicines (Oct 2025), Annex A/B","quote":"The objective of this guideline is to highlight the substances of concern when used in HS and TM and is not meant to be an exhaustive list.","accessed":"2026-08-27"},{"id":"iherb_sg","url":"https://sg.iherb.com/c/algae-omega-3","label":"iHerb Singapore — Algae Omega-3 category page","quote":"Algae Omega-3","accessed":"2026-08-27"}],"brand_certs":[{"brand":"Nordic Naturals","example":null,"programme":"NSF Certified for Sport","matching_products":0,"brand_total_certified":9}],"updated_at":"2026-08-30T17:59:36.026222+08:00"},"disclaimer":"kozen-x is not a medical device and does not give medical advice. it lists what published sources have written down. absence of a record is not the same as safe."}