Krill Oil

What other names is Krill Oil known by?

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, Docosahexanoic 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.

What is Krill Oil?

Krill oil is oil from a tiny, shrimp-like animal. Baleen whales, mantas, and whale sharks eat primarily krill. In Norwegian, the word "krill" means "whale food." People extract the oil from krill, place it in capsules, and use it for medicine. Some brand name krill oil products indicate that they use Antarctic krill. This usually refers to the species of krill called Euphausia superba.

Krill oil is used for heart disease, high levels of certain blood fats (triglycerides), high cholesterol, high blood pressure, stroke, cancer, osteoarthritis, depression, premenstrual syndrome (PMS), and painful menstrual periods.

Insufficient Evidence to Rate Effectiveness for...

  • High cholesterol. Developing research shows that taking 1-1.5 grams of a specific krill oil product (Neptune Krill Oil, Neptune Technologies & Bioresources, Inc) daily reduces total cholesterol and "bad" low-density lipoprotein (LDL) cholesterol, and increases "good" high-density lipoprotein (HDL) cholesterol in patients with high cholesterol. Higher doses of 2-3 grams daily also appear to significantly reduce levels of triglyceride, another type of blood fat.
  • Osteoarthritis. Early research shows that taking 300 mg of a specific krill oil product daily reduces pain and stiffness in people with osteoarthritis.
  • Premenstrual syndrome (PMS). Early research shows that taking a specific krill oil product might reduce PMS symptoms.
  • Rheumatoid arthritis. Early research shows that taking 300 mg of a specific krill oil product daily reduces pain and stiffness in people with rheumatoid arthritis.
  • High blood pressure.
  • Stroke.
  • Cancer.
  • Depression.
  • Other conditions.
More evidence is needed to rate the effectiveness of krill oil for these uses.

Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).


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