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 Vitamin C elevates red blood cell glutathione 
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Ascorbate Wizard
Ascorbate Wizard

Joined: Tue Nov 22, 2005 3:16 pm
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Post Vitamin C elevates red blood cell glutathione
Vitamin C elevates red blood cell glutathione in healthy adults.
http://ajcn.nutrition.org/content/58/1/103.short

Perhaps this is one of the studies behind Boyd Haley's assertion that "only vitamin C has been proven to raise glutathione levels in cells?"

Quote:
We examined the effect of supplemental ascorbic acid on red blood cell glutathione. Subjects consumed self-selected vitamin C-restricted diets, and, under double-blind conditions, ingested placebo daily for week 1 (baseline), 500 mg L-ascorbate/d for weeks 2-3, 2000 mg L-ascorbate/d for weeks 4-5, and placebo daily for week 6 (withdraw). Mean red blood cell glutathione rose nearly 50% (P < 0.05) after the 500-mg period compared with baseline, and the changes from baseline for individual subjects ranged from +8% to +84%. However, the increases in plasma vitamin C and red blood cell glutathione were not correlated (r = 0.22). At the 2000-mg dosage, mean red blood cell glutathione was not significantly different from the value obtained at the 500-mg dosage. After the placebo-controlled withdraw period, red blood cell glutathione did not differ from baseline. These data indicate that vitamin C supplementation (500 mg/d) maintains reduced glutathione concentrations in blood and improves the overall antioxidant protection capacity of blood.

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Owen R. Fonorow, Orthomolecular Naturopath


Mon Sep 17, 2012 9:03 am
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