Krill oil
Alternative names: Aceite de Krill, Acide Docosahexaénoïque, Acides Gras Oméga 3, Acides Gras N-3, Acides Gras Polyinsaturés, Acides Gras W3, Antarctic Krill Oil, Concentré de Protéines Marines, DHA, Docosahexaenoic Acid, EPA, Euphausia Superba Oil, Euphausiacé, Euphausiids Oil, Huile d' Euphausia Superba, Huile de Krill, Huile de Krill Antarctique, Huile d'Oméga 3, Marine Protein Concentrate, n-3 Fatty Acids, Omega 3, Omega 3 Fatty Acids, Omega-3, Oméga 3, Omega-3 Fatty Acids, Omega-3 Oil, Polyunsaturated Fatty Acids, W-3 Fatty Acids
Actions: Anti-arthritic, Anticancer, Cardiovascular, Hepatic, Hypoglycemic, Immune-related, Neurologic/CNS, Renal, Weight loss
Background
Krill oil comes from a tiny, shrimp-like marine animal. It's rich in the omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).
The benefits of krill oil seem to come from its omega-3 fatty acid content. The body doesn't produce many of its own omega-3 fatty acids. Omega-3 fatty acids can reduce pain and swelling and also prevent the blood from clotting easily.
People use krill oil for dry eye. It is also used for high levels of triglycerides in the blood, high cholesterol, diabetes, depression, and many other conditions, but there is no good scientific evidence to support many of these uses.
Don't confused krill oil with algal oil, cod liver oil, fish oil, or shark liver oil. These are not the same.
The benefits of krill oil seem to come from its omega-3 fatty acid content. The body doesn't produce many of its own omega-3 fatty acids. Omega-3 fatty acids can reduce pain and swelling and also prevent the blood from clotting easily.
People use krill oil for dry eye. It is also used for high levels of triglycerides in the blood, high cholesterol, diabetes, depression, and many other conditions, but there is no good scientific evidence to support many of these uses.
Don't confused krill oil with algal oil, cod liver oil, fish oil, or shark liver oil. These are not the same.
Safety Safety definitions
When taken by mouth: Krill oil is possibly safe when used for up to 6 months. Side effects might include stomach upset, decreased appetite, heartburn, fishy burps, bloating, diarrhea, and nausea.
Bleeding disorders: Krill oil can slow blood clotting. It might increase the risk of bleeding in people with bleeding disorders.
Seafood allergy: Some people who are allergic to seafood might also be allergic to krill oil supplements. Avoid using krill oil or use it cautiously if you have a seafood allergy.
Surgery: Krill oil can slow blood clotting. It might increase the risk of bleeding during and after surgery. Stop using krill oil at least 2 weeks before a scheduled surgery.
Special Precautions & Warnings:
Pregnancy and breast-feeding: There isn't enough reliable information to know if krill oil is safe to use when pregnant or breast-feeding. Stay on the safe side and avoid use.Bleeding disorders: Krill oil can slow blood clotting. It might increase the risk of bleeding in people with bleeding disorders.
Seafood allergy: Some people who are allergic to seafood might also be allergic to krill oil supplements. Avoid using krill oil or use it cautiously if you have a seafood allergy.
Surgery: Krill oil can slow blood clotting. It might increase the risk of bleeding during and after surgery. Stop using krill oil at least 2 weeks before a scheduled surgery.
Effectiveness
NatMed Pro rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, Ineffective, and Insufficient Evidence to Rate.
Possibly effective Effectiveness definitions
- Dry eye. Taking krill oil by mouth for about 3 months improves dry eye symptoms such as redness.
Dosing & administration
Krill oil has most often been used by adults in doses of 1-4 grams by mouth daily for up to 6 months. Speak with a healthcare provider to find out what dose might be best for a specific condition.
Interactions with pharmaceuticals
Medications for diabetes (Antidiabetes drugs)
Interaction Rating=Moderate Be cautious with this combination.
Krill oil might lower blood sugar levels. Taking krill oil along with diabetes medications might cause blood sugar to drop too low. Monitor your blood sugar closely.
Medications that slow blood clotting (Anticoagulant / Antiplatelet drugs)
Interaction Rating=Moderate Be cautious with this combination.
Krill oil might slow blood clotting. Taking krill oil along with medications that also slow blood clotting might increase the risk of bruising and bleeding.
Interactions with herbs & supplements
Herbs and supplements that might lower blood sugar: Krill oil might lower blood sugar. Taking it with other supplements with similar effects might lower blood sugar too much. Examples of supplements with this effect include aloe, bitter melon, cassia cinnamon, chromium, and prickly pear cactus.
Herbs and supplements that might slow blood clotting: Krill oil might slow blood clotting and increase the risk of bleeding. Taking it with other supplements with similar effects might increase the risk of bleeding in some people. Examples of supplements with this effect include garlic, ginger, ginkgo, nattokinase, and Panax ginseng.
Herbs and supplements that might slow blood clotting: Krill oil might slow blood clotting and increase the risk of bleeding. Taking it with other supplements with similar effects might increase the risk of bleeding in some people. Examples of supplements with this effect include garlic, ginger, ginkgo, nattokinase, and Panax ginseng.
Interactions with foods
There are no known interactions with foods.
Products
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Per 10 g:
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Per 1.6 g:
- 2'-Fucosyllactose 1.2 g equiv. lactose 27 mg
- Cholecalciferol 10 μg equiv. vitamin D3 400 IU
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Per 10 g (Berry):
- Acacia sp. (gum) 2.5 g
- Cyamopsis tetragonoloba (Guar gum) 2 g
- Green banana starch 1.5 g
- Saccharomyces cerevisiae (boulardii) (SB) 5 billion CFU equiv. inactive (zinc powder) 24 mg
- L-glutamine 1.9 g
- Althaea officinalis ext. 500 mg
- Cinnamon zeylanicum powder 400 mg
- Protease
- Amylase enzyme
- Lipase
- Cellulase
- Lactase
- Berry flavour
- Bacillus coagulans 2 billion CFU
- Aloe barbadensis ext. 100 mg
- Punica granatum ext. 100 mg
- Natural vanilla flavour
- Malpighia glabra powder 50 mg
- Stevia rebaubiana powder 50 mg
- Beta vulgaris (root) powder (Beetroot) 33 mg
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Per tablet (Berry):
- Cholecalciferol 6.25 µg equiv. vitamin D3 250 IU
- d-alpha-Tocopherol 5 mg equiv. vitamin E 7.5 IU
- Co-methylcobalamin (Vitamin B12) 100 µg
- Zinc citrate 18.30 mg equiv. zinc 6.25 mg
- Calcium ascorbate (Vitamin C) 18.15 mg equiv. ascorbic acid 15 mg
- Phyllanthus emblica ext. 5 mg
- Menaquinone 7 (Vitamin K2) 20 µg
- Thiamine hydrochloride (Vitamin B1) 794 µg equiv. thiamine 625 µg
- Riboflavin 5-phosphate sodium (Activated B2) 855 µg equiv. riboflavin 625 µg
- Nicotinamide (Vitamin B3) 6.25 mg
- Calcium pantothenate (Vitamin B5) 2.98 mg equiv. pantothenic acid 2.5 mg
- Pyridoxal 5-phosphate monohydrate (P5P) 1.01 mg equiv. pyridoxine 625 µg
- Levomefolate glucosamine (Activated folate) 370.37 µg equiv. levomefolic acid 200 µg
- Ferric pyrophosphate 5 mg
- Chromium picolinate 80.45 µg equiv. chromium 10 µg
- Copper sulfate pentahydrate 392.8 µg equiv. copper 100 µg
- Manganese gluconate 10.97 mg equiv. manganese 1.25 mg
- Selenomethionine 62.09 µg equiv. selenium 25 µg
- Borax 3.29 mg equiv. boron 375 µg
- Lutein 500 µg
- Lycopene 500 µg
- Lysine hydrochloride 3.12 mg equiv. lysine 2.5 mg
- Ascophyllum nodosum 9.34 mg
- Magnesium 6.25 mg
- Magnesium ascorbate (Vitamin C) 7.07 mg equiv. ascorbic acid 5 mg
- Calcified lithothamnion (Red algae) 13.22 mg equiv. calcium 4.17 mg
- Calcium ascorbate equiv. calcium 1.83 mg
- Calcium pantothenate equiv. calcium 0.25 mg
- Cruciferous vegetable blend 20 mg
- Ultra fruit blend 20 mg
- Live vegetable blend 20 mg
- Multi herb blend 20 mg
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Per capsule:
- Equisetum arvense ext. 150 mg
- Crateva magna ext. 120 mg
- Lindera strychnifolia ext. 150 mg
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Per 5 g (Unflavoured):
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Per capsule:
- Zinc amino acid chelate 12.5 mg equiv. zinc 2.5 mg
- Tocopherols concentrate - mixed (low-alpha type) (Vitamin E) 3.9 mg
- Calcium ascorbate (Vitamin C) 7.5 mg equiv. ascorbic acid 6.18 mg
- Cholecalciferol 6.25 μg equiv. vitamin D3 248 IU
- Retinyl acetate (Vitamin A) 32.96 μg equiv. retinol equivalents 33 μg
- Co-methylcobalamin (Vitamin B12) 12.5 μg
- Brassica oleracea var. italica powder 362.5 mg
- Chromium chloride hexahydrate 515 μg equiv. chromium 100 μg
- Selenomethionine 15.625 μg equiv. selenium 6.25 μg
- Manganese amino acid chelate 12.5 mg equiv. manganese 1.25 mg
- Borax 250 μg equiv. boron 28.4 μg
- Molybdenum trioxide 14.92 μg equiv. molybdenum 10 μg
- Potassium iodide (Iodine) 32.7 μg equiv. iodine 25 μg equiv. potassium 7.7 μg
- Calcium pantothenate (Vitamin B5) 10.92 mg equiv. pantothenic acid 10 mg
- Nicotinamide (Vitamin B3) 10 mg
- Riboflavin 5-phosphate sodium (Activated B2) 6.58 mg equiv. riboflavin 5 mg
- Thiamine hydrochloride (Vitamin B1) 7.08 mg equiv. thiamine 5.57 mg
- Calcium folinate (Activated folate) 54.3 μg equiv. folinic acid 50 μg
- Levomefolate glucosamine (Activated folate) 54.2 μg equiv. levomefolic acid 50 μg
- Biotin 10 μg
- Pyridoxal 5-phosphate (P5P) 3.13 mg equiv. pyridoxine 2 mg
- Cucumis melo ext. 831 μg
- Copper gluconate 2.14 mg equiv. copper 300 μg
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Per 5.5 g serve (Lemon Lime):
- Magnesium citrate 560.03 mg equiv. magnesium 90.50 mg
- Magnesium bisglycinate 621.79 mg equiv. magnesium 72.50 mg
- Magnesium amino acid chelate 935.00 mg equiv. magnesium 187.00 mg
- Pyridoxine hydrochloride (Vitamin B6) 36.47 mg equiv. pyridoxine 30.00 mg
- Zinc amino acid chelate 40.00 mg equiv. zinc 8.00 mg
- Taurine 1.00 g
- Potassium citrate 154.87 mg equiv. potassium 56.00 mg
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Per capsule:
- Amylase enzyme 3500 DUAA
- Protease 10000 HUT
- Tilactase 250 ALU
- Lipase 40 LipU
- Cellulase 44 CU
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Per 10 g (Coconut & Lemon Myrtle):
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This monograph was last reviewed on 18/07/2025 10:00:00 and last updated on 27/03/2022 02:10:07. Monographs are reviewed and/or updated multiple times per month and at least once per year.
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Natural Medicines rates safety based on scientific evidence according to the following scale: Likely Safe, Possibly Safe, Possibly Unsafe, Likely Unsafe, Unsafe, and Insufficient Evidence to Rate. For more information about Natural Medicines’ Safety Rating System, click here.
The Natural Medicines Effectiveness Ratings are assigned for specific indications. A product might be rated "Possibly Effective" for one condition, but be rated "Likely Ineffective" for another condition, depending on the evidence. For more info click here.
