Cysteine Restriction: A Metabolic Switch for Fat Burning?”

“some benefits of caloric restriction may stem not just from energy deficit, but from selective reduction in this amino acid.”

“The mouse data involved near-total acute cysteine depletion, which the authors themselves note can become lethal or prolonged.”

“The human observation is correlative. Lower cysteine coincided with calorie restriction, but causation isn't established.”