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However, large-scale randomized controlled trials in humans are absent, limiting evidence for clinical safety and efficacy claims

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Food sources include eggs, poultry, and dairy products Glycine: Research indicates this amino acid is found in protein sources such as meat, fish, and legumes Glutamic acid: Studies suggest this amino acid is present in many protein-containing foods Supporting Nutrients Peer-reviewed research suggests that certain vitamins and minerals may support the body's glutathione systems: Selenium: Studies indicate selenium functions as a cofactor for glutathione peroxidase enzymes

The evidence surrounding glutathione's effect on blood coagulation is still evolving

doi: 10.1073/PNAS.92.24.11110 134