Methionine SAM (via MAT) methyl donor formation Homocysteine remethylation methionine (requires B12 ) Transsulfuration (CBS & CGL, needs B6 ) cysteine Cysteine + glutamate + glycine GSH (glutathione synthetase) Nutrient supports: B12, B6, folate for methylation & transsulfuration Sulfur-rich foods (garlic, onion, broccoli) Protein sources (eggs, fish, legumes) for amino acids Glutathione synthesis is the step-by-step process by which the body creates its master antioxidant to support detoxification, immunity, and cellular health
Variations, especially in foods of plant origin, could be attributed to factors such as plant varieties and cultivars, growing conditions (e.g., season and climate), and agronomic practices (e.g., harvest time and postharvest handling)
Fong W, Li Q, Ji F, Liang W, Lau HCH, Kang X, et al
The present study was approved by the Ethics Committee of General Hospital of Ningxia Medical University (Yinchuan, China