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Item #26520
SAMe by Doctor's Best
VI
SAMe
Size:60 tablet

Doctor's Best SAMe 200 contains 200 mg of active SAMe in each tablet. Doctor's Best utilizes only the highest quality Italian SAMe available on the market. This ensures that you receive the most potent SAMe product with the highest percentage of the active S,S form per serving, bar none.

S-Adenosyl Methionine (SAMe) is derived from the amino acid methionine and is one of the most important methyl donors in the central nervous system. Methylation (donation of methyl groups) is an essential process in ensuring the proper function of a number of organ systems. SAMe is involved in numerous biochemical reactions in tissue including the liver, joints and brain. SAMe is also required for the biosynthesis of critical neurotransmitters and hormones.

  • Science-based nutrition
  • Dietary supplement
  • Enhances mood and neural function
  • Promotes joint comfort and mobility
  • Supports liver health and detoxification

Supplementing with SAMe

The manufacturing process of SAMe yields two forms, the S,S and the R,S isomers. The S,S isomer is the active form that mediates biochemical activity in the human body, whereas the R,S form is considered to be biologically inactive. The Italian SAMe used in our SAMe 200 is processed to yield the highest available percentage of the active pure S,S form on the market.

SAMe and Joint Function

SAMe may enhance cartilage protection and promote the synthesis of proteoglycans, essential components of connective tissue. Clinical studies show an ability of SAMe to enhance mobility and movement, and promote joint comfort.

SAMe and Neural Health

SAMe-catalyzed methylation reactions promote the synthesis of neurotransmitters, which have the potential to promote enhanced mood. SAMe may also upregulate the production of phosphatidylcholine, supporting cognitive function.

SAMe and Liver Function

SAMe enhances liver synthesis of glutathione, an antioxidant. Glutathione promotes detoxification and liver protection. Studies show SAMe may protect liver tissue from injury caused by a number of toxins.

Potent Promoter of Mood and Cognitive Health

After at least 18 controlled human trials, published over almost four decades, SAMe is clearly proven to promote healthy mood. The latest double-blind trial was published in 2010, and its findings were so impressive that the journal also published an editorial in praise of SAMe. This editorial attributed SAMe's marked mood benefits to its diverse roles in brain metabolism.

SAMe is essential for the healthy metabolism of the major brain transmitters dopamine, serotonin, and norepinephrine. SAMe is also essential for the main metabolic pathway that makes PC (phosphatidylcholine), a key cell membrane phospholipid for the nerve cell informational connections (synapses). Myelination-insulation of the nerve cell extensions to optimize their electrical conduction-also requires SAMe. And SAMe is also essential for the brain to produce melatonin, a hormone that regulates healthy sleep patterns.

Individuals who have mood difficulties often also have problems with memory and other cognitive functions. In a 2010 double-blind trial, SAMe supported cognitive health while promoting healthy mood. SAMe supports the metabolism of acetylcholine, a major nerve transmitter that is essential for attention, learning, and memory and for numerous other functions outside the brain. Even as SAMe ameliorates mood difficulties, SAMe also has improved energy levels, as found in two other double-blind trials. Optimal SAMe intakes for mood and cognitive support are 800-1600 mg per day, preferably as divided doses taken between meals.

Promotes Joint Comfort and Mobility

A minimum 14 controlled clinical trials prove SAMe is consistently effective for the support of joint comfort and mobility. In the longest trial, which lasted two years, 97 subjects received SAMe at 600 mg per day for the first two weeks, followed by 400 mg per day for the remaining period.nSAMe continued to improve joint health over the entire course of this long trial, and was very well tolerated.

Most of the controlled trials for joint health used SAMe at 1200 mg per day. Researchers conducting these trials noted SAMe's relative lack of adverse effects and its capacity to continue improving joint comfort and mobility over the entire period of the trial. A 2002 "meta-analysis" of pooled clinical trial data and a 2011 clinical review both concluded SAMe is a premier joint support nutrient.

The tissues of the working joint have a matrix of collagen and proteoglycans, large fibrous molecular complexes that give the joint structural stability. SAMe's energized "active sulfur" group supports collagen and proteoglycan formation. SAMe's active sulfur also supports the bio-synthesis of glutathione, cysteine, and taurine, key components of the joint's antioxidant defenses (and of the liver and the body as a whole).

Protects and Supports the Liver and Intestine

The liver makes most of the body's SAMe, and itself relies heavily on SAMe for its structural and functional integrity. The liver's SAMe reserves are readily depleted by alcohol consumption, or by a variety of chemical toxins. In three human trials, supplementation with SAMe protected the liver against alcohol or other manmade toxins. These benefits of SAMe are most likely mediated by its support for the liver pathways that make glutathione and the other sulfur antioxidants.

Most of the liver's glutathione comes ultimately from SAMe. The liver is the major organ wherein "active sulfur" from SAMe is fed into the vast web of sulfur pathways that make glutathione and the other sulfur antioxidants. These are at the hub of the liver's considerable detoxication activity, and also provide its major defense against chemical damage. Functionally, glutathione status (and therefore liver health) is highly dependent on SAMe: experimental depletion of glutathione causes SAMe to be used up in replacing the glutathione, while repleting SAMe leads to restoration of glutathione reserves.

In addition to its multifaceted support for liver detoxication, SAMe also supports the liver's bile secretion function, as reported in at least two clinical trials.

SAMe also helps keep the colon healthy. The colon normally houses bacteria that produce hydrogen sulfide, which is potentially toxic to biomolecules. The cells that line the colon use SAMe to detoxify hydrogen sulfide. In a clinical study, difficulties with colon function were linked to low blood levels of SAMe.

Methyl Source for Genetic, Epigenetic, and Other Vital Processes

Most of the body's SAMe goes into "methyl transfer reactions," which make pervasive contributions to life processes. Methyl transfer enzymes use SAMe's high-energy methyl group ("active methyl") to produce thousands of biomolecules and subsequently to regulate their functional capacities.

Methyl is in our DNA. Active methyl from SAMe is used to make DNA, to make polyamine compounds that fold the DNA into its required shapes, to help repair damaged DNA, and to facilitate the "reading out" of DNA to make proteins. Methyl enzymes help ensure DNA is accurately converted into RNA and that in turn, this RNA is efficiently "translated" into proteins. SAMe's active methyl is also used to fine-tune the shapes of proteins, to produce phospholipids that build cell membranes, to make hormones and chemical transmitters, and to manage miscellaneous major and minor biochemical tasks.

SAMe's active methyl is also crucial for the regulation of gene activity using molecules that attach to the DNA ("epigenetic regulation"). Methyl enzymes selectively and precisely "tag" genes with methyl groups, to make these genes active or inactive according to the requirements for a particular cell or tissue. Methyl tagging regulates numerous other vital processes, including the functional specialization of cells, the coordination of the different cell types in tissues, the activation of detoxification enzymes, even the programming of reproduction and fetal development.

Disruption of the normal methyl patterning in human genes has been documented. Researchers found under-methylation of DNA in a human population (Greenland Inuit) exposed to high levels of pollutant chemicals. They suggested that as these environmental pollutants deplete glutathione they could also come to deplete SAMe. The consequent limitation of SAMe availability would limit availability of active methyl and account for the inadequate methyl tagging observed in this population. These researchers expressed considerable concern over the health implications of abnormal DNA methylation.

SAMe's deoxyadenosyl group is also energy-activated and has considerable functional overlap with SAMe's methyl transfer reactions. It has become clear that SAMe's "active deoxy" is used by more than 2800 "Radical SAMe" enzymes,3 and gives SAMe even further importance for human health.

Essential For Energy Production by the Mitochondria

In two double-blind trials that involved subjects with energy complaints, SAMe significantly improved energy as well as mood. This health benefit from SAMe may be related to its roles as a key nutrient for our microscale energy generators, the mitochondria.

The mitochondria have their own semi-separate metabolic apparatus. They need SAMe to produce their own DNA, RNA, and proteins. They also rely on SAMe to make their own supplies of coenzyme Q10 and alpha lipoic acid, other nutrients crucial for energy generation and for their structural protection.

More than 90 percent of the body's ATP is made in the mitochondria. They have intricate enzyme systems that use oxygen to "burn" our foods and thereby to make ATP. However, some of this oxygen escapes the mitochondria's control and spawns potentially harmful oxygen free radicals. The mitochondria use glutathione as their core antioxidant for protection against these dangerous "sparks of metabolism." To make sufficient glutathione the mitochondria must have sufficient SAMe. The multifaceted importance of SAMe for mitochondria helps explain how SAMe can enhance energy in the whole body.

About Doctor's Best

Doctor's Best produces products with the highest quality raw materials available on the market. They have direct control over and are an integral part of every aspect of product production, from formulation and raw material sourcing to finished product manufacturing. We directly purchase all active ingredients used in our products and use only the highest quality ingredients.

Every product is thoroughly researched and backed by the latest scientific studies conducted in the field. The formulations reflect the amounts of ingredients shown to be beneficial based on the results of scientific investigations. Doctor's Best uses patented, trademarked ingredients backed by scientific studies and clinical research. They never use insignificant quantities to enhance the label.

Doctor's Best directly purchases only the highest grade raw materials from proven and reputable suppliers to be put into product formulations. All raw material suppliers go through their stringent vendor qualification process, which includes a multi-step investigation including all aspects of the production and handling procedures, to insure the highest level of quality is reached.

* [1] Note: Unless otherwise noted, products on our web site have not been evaluated by the Food and Drug Administration. They are not intended to diagnose, treat, cure, or prevent any disease.
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