Jarrow Formulas Reduced Glutathione 500mg, 60 Capsules

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• 60 capsules
• Intracellular antioxidant
• Dietary supplement

List Price?: $39.95
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Jarrow Formulas Reduced Glutathione, 500mg, 60 CapsulesAt a Glance:Glutathione is a sulfur-containing, tri-peptide that the body utilizes to balance the redox potential of cells Regulates detoxification when in reduced formIdeal for those interested in a naturally occurring antioxidant and detoxification agent that can also help bolster vitamin C & E levels in the bodyPharmaceutical grade, non-oxidized form

Glutathione is a tri-peptide that the body utilizes to balance the redox potential of cells.

Produced in a pharmaceutical grade, non-oxidized form. View larger.

Glutathione (GSH) is a tri-peptide composed of the amino acids glycine, cysteine, and glutamate. As one of the primary protective molecules in the body it is found, inside and outside of cells, in all tissues and body fluids. GSH is most highly concentrated in the liver, spleen, kidney, eye-lens, erythrocytes, and leukocytes. Higher glutathione status and/or dietary intakes have been correlated with cardiovascular, oral and eye health, as well as increased vitality with aging.*

The best food sources of glutathione are fresh fruits and vegetables and newly prepared meats. Since most methods of food processing destroy glutathione, the excessive intake of processed foods may be leading to modern diets that are often devoid of glutathione. Studies evaluating dietary intake from food have found wide variations amongst individuals: 3-250 mg/day (mean: 35 mg/day). Additionally, body-stores tend to decrease with age and even fluctuate throughout the day.

Good By Mouth

Since GSH is a peptide, many assume that it is completely digested by enzymes in the intestines. Further fueling this assumption, early studies did not find an appreciable increase in plasma levels after GSH ingestion. However, it now appears that GSH's uncommon linkage amongst the glutamate side-chain and the cysteine residue makes GSH partially resistant to common peptide cleavage enzymes. This not only impacts its digestion, but also its regulation inside the body. Numerous studies have now demonstrated that oral glutathione is bioavailable and that blood levels may stay relatively constant even as tissue levels rise.

Oral glutathione feeds bodily tissues via three routes 1) absorption intact in the intestines followed by tissue uptake from blood, 2) degradation to its constituent amino acids in the GI tract, cellular absorption, then intracellular GSH re-synthesis, and 3) terminal passage into cells that line the GI tract. The availability of L-cysteine is the bottleneck for glutathione synthesis in the body, since cysteine is the least prevalent of glutathione's three constituent amino acids in the diet. This is one reason N-acetylcysteine (NAC) is also used to support glutathione levels. Overall, there are about 15 grams of GSH in the body, of which roughly four grams can be found in the liver.

RedOx & Detox

GSH is the major endogenous antioxidant produced by the body, possessing a substantial reduction-oxidation (i.e. "redox") potential. Thus it can participate both directly and indirectly in the neutralization of free radicals and reactive oxygen species. It also helps maintain levels of exogenous antioxidants, such as vitamins C and E, in active forms. And of course, GSH is a cofactor for

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