Life Extension Magazine August 2005
Anti-Cancer Benefits of Shark Liver Oil
By Dale Kiefer
By Dale Kiefer
Additional Potential Benefits
According to Shark Liver Oil: Nature’s Amazing Healer, “AKGs, taken in the form of shark liver oil . . . will improve the quality of life and ease the aging process.” One of the book’s authors, Dr. Ingemar Joelsson, worked for years with the Brohults in Sweden, and has published numerous medical journal articles on the benefits of shark liver oil and AKGs. Taken as a dietary supplement, say the book’s authors, this natural immune system booster “helps increase general well-being, stave off common viruses and infections, and battle more serious diseases . . .”2
Dr. Joelsson and his coauthors cite multiple benefits of shark liver oil supplementation, based largely on anecdotal evidence and their combined years of experience as physicians and researchers. Although few controlled studies are available to support these claims, it is interesting to note the remarkable benefits reportedly experienced by their patients, including significant improvements in allergy symptoms, alleviation of asthma symptoms, and even relief from chronic pain.
According to the authors, in 1992 the Brohults were granted a patent for a method of treating allergies and asthma with AKGs. The book also describes positive changes in skin conditions such as dermatitis and psoriasis with the use, both topical and oral, of shark liver oil. Indeed, it has been used topically to treat dry skin and wounds for centuries by native Scandinavians.2
Safety and Dosages
Consumption of shark liver oil has no known side effects,17 though excessive amounts may result in stomach upset or diarrhea, and individuals who are allergic to shark meat may suffer an allergic response to the oil. Shark liver oil has been available for consumption by the public for more than 40 years, especially in Scandinavia, where it is a popular preventive and therapeutic agent.17 It is important to recall that AKGs occur naturally within the human body, albeit in far smaller amounts than are available through supplementation.
The scientific literature supports the use of 100-150 mg of alkylglycerols daily for general immune system enhancement.17
Published clinical data by Dr. Astrid Brohult suggest that 0.3-2.6 grams (300-2600 mg) of alkylglycerols daily may help minimize the decrease in platelets and white blood cells associated with radiation treatment for cancer, with an apparent optimal dosage of 600 mg of alkylglycerols per day.32 Animal studies have also shown that alkylglycerols can increase white blood cell and platelet counts.33-36 Therefore, consuming alkylglycerols for more than 30 days consecutively should be done with physician supervision.
Although much research remains to be done on the numerous potential benefits of shark liver oil, past research indicates that this gift from the deep holds enormous promise for anyone wishing to enhance immunity, fight cancer, and promote general health.
Please Note: Do not consume shark liver oil for more than 30 days continuously without first consulting your physician.
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2. Solomon N, Passwater R, Joelsson I, Haimes L. Shark Liver Oil: Nature’s Amazing Healer. Kensington Books; 1997.
3. Brohult A, Brohult J, Brohult S. Biochemical effects of alkoxyglycerols and their use in cancer therapy. Acta Chem Scand. 1970;24(2):730.
4. Hallgren B, Niklasson A, Stallberg G, Thorin H. On the occurrence of 1-O-alkylglycerols and 1-O-(2-methoxyalkyl)glycerols in human colostrum, human milk, cow’s milk, sheep’s milk, human red bone marrow, red cells, blood plasma and a uterine carcinoma. Acta Chem Scand B. 1974;28(9):1029-34.
5. Brohult A, Brohult J, Brohult S, Joelsson I. Effect of alkoxyglycerols on the frequency of injuries following radiation therapy for carcinoma of the uterine cervix. Acta Obstet Gynecol Scand. 1977;56(4):441-8.
6. Brohult A, Brohult J, Brohult S, Joelsson I. Effect of alkoxyglycerols on the frequency of fistulas following radiation therapy for carcinoma of the uterine cervix. Acta Obstet Gynecol Scand. 1979;58(2):203-7.
7. Brohult A, Brohult J, Brohult S. Effect of alkoxyglycerols on the serum ornithine carbamoyl transferase in connection with radiation treatment. Experientia. 1972 Feb 15;28(2):146-7.
8. Brohult A, Brohult J, Brohult S. Effect of alkoxyglycerols on the frequency of injuries following radiation therapy. Experientia. 1973 May 1;29(1):81-2.
9. Brohult A, Holmberg J. Alkoxyglycerols in the treatment of leukopaenia caused by irradiation. Nature. 1954 Dec11;174(4441): 1102-3.
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11. Boeryd B, Hallgren B, Stallberg G. Studies on the effect of methoxy-substituted glycerol ethers on tumour growth and metastasis formation. Br J Exp Pathol. 1971 Jun;52(3):221-30.
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21. Pedrono F, Martin B, Leduc C, et al. Natural alkylglycerols restrain growth and metastasis of grafted tumors in mice. Nutr Cancer. 2004;48(1):64-9.
22. Skopinska-Rozewska E, Krotkiewski M, Sommer E, et al. Inhibitory effect of shark liver oil on cutaneous angiogenesis induced in Balb/c mice by syngeneic sarcoma L-1, human urinary bladder and human kidney tumour cells. Oncol Rep. 1999 Nov;6(6):1341-4.
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27. Skopinska-Rozewska E, Chorostowska-Wynimko J, Krotkiewski M, et al. Inhibitory effect of Greenland shark liver oil combined with squalen and arctic birch ashes on angiogenesis and L-1 sarcoma growth in Balb/c mice. Pol J Vet Sci. 2003;6(3 Suppl):54-6.
28. Das B, Yeger H, Baruchel H, et al. In vitro cytoprotective activity of squalene on a bone marrow versus neuroblastoma model of cisplatin-induced toxicity. implications in cancer chemotherapy. Eur J Cancer. 2003 Nov;39(17):2556-65.
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36. Krotkiewski M, Przybyszewska M, Janik P. Cyostatic and cytotoxic effects of alkylglycerols (Ecomer). Med Sci Monit. 2003;9(11):PI131-5.