Orthomolecular medicine
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Orthomolecular medicine, or megavitamin therapy, is a form of complementary and alternative medicine that seeks to prevent or treat diseases with nutrients prescribed as dietary supplements or derived from diets.[1][2][3] Orthomolecular medicine focuses on what it sees as the right nutritional molecules in the right amounts for the individual. It often recommends megavitamin doses much larger than those considered medically necessary.[3] In general, the vitamin megadoses advocated by orthomolecular medicine are unsupported by scientific consensus.[4] Some vitamins are toxic in high doses.[5]
The term "orthomolecular" was coined by Nobel laureate Linus Pauling to mean "the right molecules in the right amounts" (ortho is Greek for "right").[6] Pauling theorized that "substances that are normally present in the human body" are necessarily good and can be used at high doses to treat disease. The term is not used in medicine, where clinical use of specific nutrients is considered a form of chemoprevention (to prevent or delay development of disease) or chemotherapy (to treat an existing condition).[7]
Proponents[8] state that nutrient treatments are based on patients' personal biochemistries.[9] Supplements are prescribed at high levels or "megadoses" beyond the Dietary Reference Intake. A 2002 survey found that approximately one in twenty-five US adults uses megadose therapy,[10] a practice particularly common among cancer patients.[11]
Nutrients may be useful in preventing and treating some illnesses,[4] but the broad claims made by advocates of megavitamin therapy are considered unsubstantiated by available medical evidence.[12][13][14][4] Critics have described some aspects of orthomolecular medicine as food faddism or quackery.[15][16][17] Research suggests that some nutritional supplements might be harmful;[18][19][20] several specific vitamin therapies are associated with an increased risk of cancer, heart disease, or death.[21][22][23]
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[edit] History and development
In the early 20th century, some doctors hypothesised that vitamins could cure disease, and supplements were prescribed in megadoses by the 1930s.[24] Their effects on health were disappointing, though, and in the 1950s and 60s, nutrition was de-emphasised in standard medical curricula.[24] Orthomolecularists claim several figures from these early days of enthusiasm about nutrition as founders of their movement,[25] although the word "orthomolecular" was coined by Linus Pauling only in 1967.
Amongst the individuals claimed posthumously as orthomolecularists are Max Gerson, who developed a diet that he claimed could treat diseases, but which is now thought to be ineffective and dangerous;[26] and the Shute brothers, who attempted to treat heart disease with vitamin E.[27] Several concepts now claimed by orthomolecularists, including individual biochemical variation[9] and inborn errors of metabolism,[28][24][29] debuted in scientific papers early in the 20th century.
In 1948, William McCormick theorized that vitamin C deficiency played an important role in many diseases and began to use large doses in patients.[30] In the 1950s, Frederick R. Klenner also used vitamin C megadosage as a therapy for a wide range of illnesses, including polio.[31] Irwin Stone claimed organisms that do not synthesise their own vitamin C due to a loss-of-function mutation have a disease he called "hypoascorbemia".[32] This term is not used by the medical community, and the idea of an organism-wide lack of a biosynthetic pathway as a disease was not endorsed by Stone's contemporaries.[33]
In the 1950s, some individuals believed that vitamin deficiencies caused mental illness.[24] Psychiatrists Humphry Osmond and Abram Hoffer gave acute schizophrenics high doses of niacin,[34] while William Kaufman used niacinamide. While niacin has no known efficacy in psychiatric disease, the use of niacin in combination with statins and other medical therapies has become one of several medical treatments for cardiovascular disease.[4][35]
In the late 1960s, Linus Pauling introduced the expression "orthomolecular"[6] to express the idea of the right molecules in the right amounts.[6] Since the first claims of medical breakthroughs with vitamin C by Pauling and others, findings on the health effects of vitamin C have been controversial and contradictory.[36][37] Pauling has been criticised for making overbroad claims.[38]
Later research branched out into nutrients besides niacin and vitamin C, including essential fatty acids.[39]
[edit] Scope
According to Abram Hoffer, orthomolecular medicine does not purport to treat all diseases, nor is it "a replacement for standard treatment. A proportion of patients will require orthodox treatment, a proportion will do much better on orthomolecular treatment, and the rest will need a skillful blend of both."[40] Nevertheless, unsubstantiated claims have been made that nutrients can prevent,[41] treat, and sometimes cure a wide range of medical conditions, including: acne,[42] alcoholism,[43] allergies, arthritis, autism, bee stings, bipolar disorder, burns, cancer,[44][45] the common cold, depression,drug addiction, drug overdose, epilepsy, heart diseases, heavy metal toxicity, acute hepatitis, herpes, hyperactivity, hypertension, hypoglycemia, influenza, learning disabilities, mental and metabolic disorders,[46] migraine, mononucleosis, mushroom poisoning, neuropathy & polyneuritis (including multiple sclerosis), osteoporosis,[47] polio, an hypothesised condition called "pyroluria", radiation sickness, Raynaud's disease, retardation, schizophrenia,[2] shock, skin problems, snakebite, spider bite, tetanus toxin and viral pneumonia.[48]
[edit] Orthomolecular psychiatry
Hoffer believed that particular nutrients could cure mental illness. In the 1950s, he attempted to treat schizophrenia with niacin, although proponents of orthomolecular psychiatry say that the ideas behind their approach predate Hoffer.[49][50] Carl Pfeiffer of the Pfeiffer Treatment Center continued Hoffer’s approach, believing that for “every drug that benefits a patient, there is a natural substance that can achieve the same effect".[51] According to Hoffer and others who called themselves "orthomolecular psychiatrists", psychiatric syndromes result from biochemical deficiencies, allergies, toxicities or several hypothetical contributing conditions which they termed pyroluria, histadelia and histapenia. These purported causes are said to be found during an "individual biochemical workup" and treated with megavitamin therapy and dietary changes including fasting.[52] These diagnoses and treatments are not accepted by evidence-based medicine.[53]
[edit] Principles
According to Abram Hoffer, "primitive" peoples do not consume processed foods and do not have "degenerative" diseases.[54] In contrast, typical "Western" diets are said to be insufficient for long-term health, necessitating the use of megadose supplements of vitamins, dietary minerals, proteins, antioxidants, amino acids, ω-3 fatty acids, ω-6 fatty acids, medium chain triglycerides, dietary fiber, short and long chain fatty acids, lipotropes, systemic and digestive enzymes, other digestive factors, and prohormones to ward off hypothetical metabolism anomalies at an early stage, before they cause disease.[40]
Orthomolecularists say that they provide prescriptions for optimal amounts of micronutrients after individual diagnoses based on blood tests and personal histories. Lifestyle and diet changes may also be recommended. The battery of tests ordered includes many that are not considered useful by medicine.[citation needed]
[edit] Prevalence
Orthomolecular medicine is practiced by few medical practitioners,[55][56] but megavitamin treatments are increasingly found in over the counter retail products and naturopathic textbooks.[citation needed]
A survey released in May, 2004 by the National Center for Complementary and Alternative Medicine focused on who used complementary and alternative medicine (CAM), what was used, and why it was used in the United States by adults age 18 years and over during 2002. The survey reported uses in the previous twelve months that include orthomolecular related uses: Nonvitamin, nonmineral, natural products 18.9%, Diet-based therapies 3.5%, Megavitamin therapy 2.8%.[10]
Another recent CAM survey reported that 12% of liver disease patients used the antioxidant silymarin, more than 6% used vitamins, and that "in all, 74% of patients reported using CAM in addition to the medications prescribed by their physician, but 26% did not inform their physician of their CAM use."[57] The use of high doses of vitamins is also common in people who have been diagnosed with cancer, although usage depends of the type of cancer and ranges from 26% to 35% among prostate cancer survivors up to 75% to 87% in breast cancer survivors.[11]
[edit] Mainstream medical and scientific reception
[edit] Methodology
Orthomolecular therapies have been criticized as lacking a sufficient evidence base for clinical use: their scientific foundations are too weak, the studies that have been performed are too few and too open to interpretation, and reported positive findings in observational studies are contradicted by the results of more rigorous clinical trials.[55][58] The lack of scientifically rigorous testing of orthomolecular medicine has led to its practices being classed with other forms of alternative medicine and regarded as unscientific.[59][60][61] It has been described as food faddism and quackery, with critics arguing that it is based upon an "exaggerated belief in the effects of nutrition upon health and disease."[15][16][17]
Proponents of orthomolecular medicine contend that, unlike some other forms of alternative medicine such as homeopathy, their ideas are at least biologically based, do not involve magical thinking,[62] and are capable of generating testable hypotheses.[63]
[edit] Views on safety and efficacy
Since its inception, the claims made by orthomolecular medicine have been rejected by mainstream medicine as unsubstantiated or false.[64] Organizations critical of orthomolecular claims include the American Cancer Society, the American Psychiatric Association, the National Institute of Mental Health,[53] the American Academy of Pediatrics,[65] CHAMPUS, and the Canadian Paediatric Society. The American Medical Association describes as "myths" the ideas that vitamin and mineral deficiencies are widespread, that the causes of most diseases are poor diets, or that most diseases can be prevented by nutritional supplements.[66]
Similarly, the American Cancer Society comments that the current scientific evidence does not "support use of orthomolecular therapy for most of the conditions for which it is promoted." Some supplements have exhibited benefits for specific conditions, while a few have been confirmed to be harmful; the consumption of nutritious foods is the best recognized method to obtain vitamins, minerals, and nutrients crucial for good health.[4] Barrie Cassileth, an adviser on alternative medicine to the National Institutes of Health, stated that "scientific research has found no benefit from orthomolecular therapy for any disease,"[55] and medical textbooks also report that there is "no evidence that megavitamin or orthomolecular therapy is effective in treating any disease."[67]
A 1973 task force of the American Psychiatric Association unanimously concluded:
This review and critique has carefully examined the literature produced by megavitamin proponents and by those who have attempted to replicate their basic and clinical work. It concludes in this regard that the credibility of the megavitamin proponents is low. Their credibility is further diminished by a consistent refusal over the past decade to perform controlled experiments and to report their new results in a scientifically acceptable fashion. Under these circumstances this Task Force considers the massive publicity which they promulgate via radio, the lay press and popular books, using catch phrases which are really misnomers like "megavitamin therapy" and "orthomolecular treatment," to be deplorable.[68]
The American Academy of Pediatrics labelled orthomolecular medicine a "cult" in 1976, in response to claims that orthomolecular medicine could cure childhood psychoses and learning disorders.[69]
Proponents of orthomolecular medicine counter that some vitamins and nutrients are now used in medicine as treatments for specific diseases, such as megadose niacin and fish oil for dyslipidemias, and megavitamin therapies for a group of rare inborn errors of metabolism.[24] A recent review in the Annals of Internal Medicine concluded that while some therapies might be beneficial, others might be harmful or interfere with effective medical therapy.[70] A recent study of over 161,000 individuals provided, in the words of the authors, "convincing evidence that multivitamin use has little or no influence on the risk of common cancers, cardiovascular disease, or total mortality in postmenopausal women."[12] A recent meta-analysis in JAMA suggested that supplementation with combinations of antioxidant vitamins (beta-carotene, vitamin A, and vitamin E) may increase mortality, although with respect to beta-carotene this conclusion may be due to the known harmful effect in smokers.[71]
[edit] Safety
In the United States, pharmaceuticals must be proven safe and effective to the satisfaction of the FDA before they can be marketed, whereas dietary supplements must be proven unsafe before regulatory action can be taken.[72] A number of orthomolecular US supplements are available in pharmaceutical versions that are sometimes quite similar in strength and general content, or in other countries are pharmaceuticals. The US regulations also have provisions to recognize a general level of safety for established nutrients that can forgo new drug safety tests. Proponents of orthomolecular medicine argue that supplements are less likely to cause dangerous side-effects or harm, since they are normally present in the body.[3]
Health professionals see orthomolecular medicine as encouraging individuals to dose themselves with large amounts of vitamins and other nutrients without conventional supervision, which they worry might be damaging to health. Potential risks[73] of megadose vitamins include an increased risk of coronary heart disease,[74] hypertension, thrombophlebitis, peripheral neuropathy, ataxia, neurological effects, liver toxicity, congenital abnormalities, spontaneous abortion, gouty arthritis, jaundice, kidney stones, and diarrhea.[75][76][77][78]
[edit] Example: use of vitamin E in orthomolecular medicine
Initial hopes for the usefulness of vitamin E in orthomolecular medicine were based on epidemiological studies suggesting that people who consumed more vitamin E had lower risks of chronic disease, such as coronary heart disease.[79] These observational studies could not distinguish between whether the higher levels of vitamin E improved health themselves, or whether confounding variables (such as other dietary factors or exercise) were responsible.[80][81] To distinguish between these possibilities, a number of randomized controlled trials were performed. Meta-analysis of these controlled clinical trials have not shown any clear benefit from any form of vitamin E supplementation for preventing chronic disease.[82][83][84][85] Further clinical studies show no benefit of vitamin E supplements for cardiovascular disease.[86]
Beyond the lack of apparent benefit, meta-analyses report that vitamin E supplementation is associated with an increased risk of death.[22][23] A 2005 meta-analysis found a consistent dose-dependent increase in mortality with increasing doses of vitamin E.[87] An increase in mortality was confirmed in a 2007 meta-analysis,[88] later repeated and extended by the same authors in the Cochrane Collaboration.[20]
[edit] Use in AIDS
Several orthomolecular related AIDS approaches such as multivitamins,[89] selenium[90] and amino acids[91] are used with reported improvements in patients, which are attributed to the placebo effect. High dose vitamin C treatments have long been used clinically to treat AIDS patients without any positive result.[92] Use of this orthomolecular treatment rather than current medical treatments such as antiretroviral drugs has been subject to criticism.[93]
An analysis of fifteen clinical trials of micronutrient therapies by the Cochrane Collaboration in 2005 found no evidence that such micronutrient approaches either reduce symptoms or mortality in HIV-infected adults who are not malnourished, but found evidence, in one hospital, that giving vitamin A to infants with HIV may be beneficial.[94] Vitamin A deficiency is found in children with HIV infection who may or may not have symptoms of AIDS. Vitamin A supplementation reduces morbidity and mortality in AIDS symptomatic children, but has no effect on asymptomatic children. It does not prevent HIV infection, cannot treat the chronic HIV infection, and will not cure AIDS.[95][96]
[edit] Deaths resulting from illegal vitamin trials in South Africa
Vitamin salesman Matthias Rath has been roundly criticised for presenting his supplements as a treatment for AIDS and testing them in illegal trials in South Africa. A former associate of Linus Pauling, Rath now promotes vitamins as a treatment for HIV infection, describing treatment with effective antiretroviral drugs as toxic and part of a global conspiracy serving the financial interests of the pharmaceutical industry.[93] In a lawsuit that found against Rath, the South African Medical Association blamed his vitamin products for several deaths,[97][98] the World Health Organization and two health agencies of the United Nations also described Rath’s advertisements as “wrong and misleading” and “an irresponsible attack on ARV (antiretroviral) therapy.”[99] Rath's trials, conducted with the aid of AIDS denialist David Rasnick, were declared unlawful; Rath, Rasnick and their foundation were barred from conducting further unauthorised clinical trials and from advertising their products.[100]
[edit] Conspiracy theories
Orthomolecularists, including Pauling, Hoffer and Ewan Cameron have alleged that their findings are actively suppressed by a conspiracy of mainstream medicine and the pharmaceutical industry. Hoffer wrote that "there is no conspiracy led and directed by a single person or by a single organization ... [h]owever, there is a conspiracy led and directed by a large number of professionals and their associations who have a common aim to protect their hard-earned orthodoxy, no matter what the cost to their opponent colleagues or to their patients".[101][102]
The Journal of Orthomolecular Medicine, founded in 1967 as the Journal of Schizophrenia, is the main publication of those involved in Orthomolecular Medicine. It was founded, as Abram Hoffer wrote, because of the alleged conspiracy: "We had to create our own journals because it was impossible to obtain entry into the official journals of psychiatry and medicine. Before 1967 I had not found it difficult to publish reports in these journals, and by then I had about 150 articles and several books in the establishment press."[103]
Mainstream medicine regards such claims of a conspiracy as unsubstantiated.[104][105] A review in the Journal of Clinical Oncology described such conspiracy theories, which allege collusion amongst physicians against unconventional and unproven treatments, as a common theme in many forms of alternative medicine.[106] Despite claims of conspiracy, the Linus Pauling Institute's funding comes primarily from the National Institutes of Health,[107] and several orthomolecular therapies have been officially sanctioned within Europe[108] and Japan.[109][110][111]
[edit] Additional supporters of orthomolecular medicine
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[edit] See also
- Health freedom movement
- Life extension
- List of life extension related topics
- Fringe science
- Pseudoscience
- Junk science
[edit] Citations
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[edit] Further reading
[edit] Support
- Williams Roger John, Kalita Dwight K (1979). A Physician's handbook on orthomolecular medicine (Health science ed.). New Canaan, Connecticut: Keats. ISBN 0879831995. OCLC 6006241.
- Huemer Richard P, ed (1986). The Roots of molecular medicine : a tribute to Linus Pauling. W. H. Freeman. pp. 290pp. ISBN 0716717611. OCLC 13009998. "Based on a collection of papers presented at a symposium of the Orthomolecular Medical Society in San Francisco, May 7-8, 1983, with revisions and additional papers."
- Pauling Linus (1986). How to live longer and feel better. W. H. Freeman. pp. 322pp. ISBN 0380702894. OCLC 12722295.
- Hoffer Abram, Walker Morton (1998). Putting it all together : the new othomolecular nutrition (Revised ed.). McGraw-Hill. ISBN 0879836334. OCLC 34515814.
- Hoffer Abram, with Pauling Linus (2004). Healing cancer : complementary vitamin & drug treatments. Toronto: Canadian College of Naturopathic Medicine. ISBN 1897025114. OCLC 56682217.
- Moss Ralph W (2000). Antioxidants against cancer. Brooklyn: Equinox Press. ISBN 1881025284. OCLC 42786370.
- Pizzorno Joseph E Jr, Murray Michael T (November 2005). Textbook of natural medicine (Third ed.). Edinburgh: Churchill Livingstone. pp. 2368. ISBN 0443073007. OCLC 61878655.
[edit] Criticism
- Barrett Stephen (1980). The health robbers : how to protect your money and your life (Second ed.). Philadelphia: G. F. Stickley. pp. 52. ISBN 0893130230. OCLC 6994138.
- Cassileth Barrie R (1998). Alternative medicine handbook: the complete reference guide to alternative and complementary therapies. New York: W.W. Norton. ISBN 0393045668. OCLC 36727947.
- Bender David A (2003). Nutritional biochemistry of the vitamins (Second ed.). Cambridge; New York: Cambridge University Press. pp. 230. ISBN 0521803888. OCLC 50948594.
- Gratzer Walter B (2005). Terrors of the table : the curious history of nutrition. Oxford; New York: Oxford University Press. pp. 210. ISBN 0192806610. OCLC 60837725.
[edit] External links
[edit] Support
- Journal of Orthomolecular Medicine, orthomolecular.org
- Official website for the International Society of Orthomolecular Medicine, isom.eu
- Orthomolecular Medicine Online
- Linus Pauling Institute, lpi.oregonstate.edu
- Orthomolecular Vitamin Information Centre, Hoffer & Fuller's practice
- Index orthomolecular research pages, Orthomolecular Education Foundation SOE (Netherlands)
[edit] Criticism
- Biologically based practices: an overview, National Institute of Health National Center for Complementary and Alternative Medicine
- Food, health and well-being in British Columbia. BC Provincial Health Officer’s Annual Report (2005)
- Should we "Thank God" for Julian Whitaker?, American Council on Science and Health, (1999)
- Recommendations of the NCAHF task force on supplement abuse (1987)