foods with glutathione peroxidase L-Glutathione: Avocado, Watermelon, and More J Food Bioact

Blood 106(11):3844

PhosphateActivated Glutaminase and Mitochondrial Glutamine Transport in the Brain. Neurochemical Research 25: 14071419

When Re-Testing May be Appropriate Borderline levels: 36 months High levels: 13 months During B12 therapy: Monthly until normalized With new symptoms: As needed Additional Testing Your Doctor May Consider Complete B12 panel Kidney function Absorption testing When Additional Care May be Warranted Persistent high MMA despite supplementation Progressive neurological symptoms Symptoms of severe B12 deficiency (extreme fatigue, difficulty walking) Signs of pernicious anemia (severe macrocytic anemia) Bibliography References 1

study [3] found that adults taking 500 mg of oral glutathione daily experienced reductions in melanin index measurements across the six skin sites evaluated