Life Extension Magazine April 2007
By Tiesha D. Johnson, BSN, RN
By Tiesha D. Johnson, BSN, RN
SAMe is most frequently available in 200-mg or 400-mg tablets. The typical oral dose for depression is 400-1600 mg daily. For bone and joint health, the typical dose is 200-1200 mg a day, in divided doses. For liver problems, up to 1600 mg may be taken daily in divided doses. Some of the scientific literature suggests that once positive effects are achieved, the dose of SAMe can be reduced. SAMe’s effects often manifest in two weeks or sooner.56
For optimal effects, stable, enteric-coated SAMe tablets are recommended. SAMe should be consumed on an empty stomach, either one hour before or two hours after meals.56
SAMe has a well-established track record of safe use, with minimal side effects. Some researchers, however, have worried that it may contribute to elevated levels of homocysteine, one of the products of SAMe’s chemical cycle in the body.26 Elevated homocysteine is a risk factor for cardiovascular disease.
Fortunately, a 2004 study provides powerful reassurance about this concern. Researchers studied 15 healthy volunteers who took oral SAMe supplements (1600 mg/day) for four weeks.57 None of the subjects experienced any increase in homocysteine levels during the treatment. Nonetheless, to prevent the possibility of elevated homocysteine, the Physician’s Desk Reference® recommends taking supplemental vitamins B6, B12, and folic acid, and possibly trimethylglycine (TMG), while using supplemental SAMe.56
People with bipolar disorder (previously known as manic-depressive illness) can develop mania (excitability, grandiose thinking, excessive energy, etc.) in response to supplementation with SAMe, and should therefore not use SAMe unless under medical supervision.14,58 Individuals taking antidepressant medications should likewise consult their physicians before taking SAMe in place of or in addition to those medications.56
SAMe is not recommended for use in children or nursing mothers. Pregnant women should use SAMe only under a physician’s recommendation.56
When Life Extension introduced SAMe to American consumers over 10 years ago, few recognized it as a major step forward in the science of natural health care. Yet decades of accumulating studies show that this remarkable natural compound matches the efficacy of many popular prescription drugs in combating conditions as varied as depression and arthritis—with minimal or no side effects.
SAMe was a relatively expensive nutrient when introduced to the US market a decade ago. Since then, the cost of synthesizing pharmaceutical-quality SAMe has been greatly reduced. Its affordability, enviable safety record, and growing number of diverse health applications—including promoting the health of the liver and endothelium—make SAMe worthy of inclusion in every well-rounded supplement regimen.
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