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Methionine helps synthesize glutathione, a natural antioxidant produced in the liver that helps eliminate toxins and speeds up fat removal within the liver, promoting liver function

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Image 2: Vitamin B12 absorption and metabolism Image: Simplified vitamin B12 absorption and metabolism and inter-relationship with the folate cycle

The dual HPLC and mass-spec approach is the correct standard, since purity and identity are separate questions and a compound can be pure yet incorrectly identified