Sulfur metabolism under stress: Oxidized glutathione inhibits methionine biosynthesis by destabilizing the enzyme cystathionine synthase Hacham 2025 Journal of Integrative Plant Biology Wiley Online Library One lab marker could reveal your risk for heart disease, brain decline, and poor detoxand most people have never heard of it. Homocysteine and methionine are key amino acids with a vital connection to glutathione one of your body's most important substances! Methionine is abundant in many foods, so protein isn't the culprit, protein synthesis protein intake. you can eat a pound of steak and only ~32% of those amino acids actually become new protein in your body. the rest gets converted to glucose Homocysitaconate controls inflammation through reshaping methionine metabolism and N homocysteinylation: Cell Metabolism L Methionine 2g (50mL) IV Vitamin Drip