Fat burning is not always the problem. Sometimes the issue is detox capacity. When you move into a carnivore or animal based diet, the body relies heavily on a pathway called transsulfuration. How methionine improves transition health S Adenosylmethionine Deficiency and Brain Accumulation of S Adenosylhomocysteine in Thioacetamide Induced Acute Liver Failure Critical Roles of the CysteineGlutathione Axis in the Production of Glutamyl Peptides in the Nervous System