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Oral Supplementation of Glutathione Shown to be Effective

Glutathione is your body's most powerful antioxidant, helping to protect you against disease, viruses and free radicals. Previous studies have been unclear about the best method to increase glutathione levels, but a recent study suggests that 1,000 mg daily of oral supplementation may raise blood levels by 30-35%.

Participants in the study included 54 healthy adults. Over the course of six months they received one of three daily interventions:

1. a placebo;

2. 250 mg glutathione;

3. 1,000 mg glutathione.

At the conclusion of the study, the researchers noted increases of glutathione in the high dose group in red blood cells, plasma and white bloods cells. The low dose group showed higher plasma levels only.

The high dose group also saw an increase in natural killer cells, which are a marker of immune defense.

Researchers from Penn State College of Medicine conducted the study. It was presented at the 2013 Experimental Biology conference in Boston.

Previous research has shown that glutathione neutralizes free radicals, enhances the immune system and detoxifies the liver. It also protects cells from bacteria, viruses and toxins.

Foods rich in glutathione include asparagus, spinach, avocado, squash, melons, grapefruit and peaches. It is also found in meat sources of protein, whole wheat, oatmeal, bran flakes, popcorn, and whey protein. While eating a balanced diet is the best way to increase your glutathione intake, this study shows that taking oral glutathione supplements is also a viable option.

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