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https://www.sciencedaily.com/releases/2025/08/250807233045.htmQuote
Researchers found that lowering cysteine sparks the conversion of white fat into heat-producing brown fat, boosting metabolism and promoting weight loss in both humans and animal models.
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Dr. John Kirwan, Executive Director of Pennington Biomedical Research Center. "I would like to congratulate this research team on uncovering this important metabolic mechanism that could eventually transform how we approach weight management interventions."
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While the body can produce cysteine from other amino acids (serine and methionine), it may be necessary to obtain it from diet, especially for infants, the elderly, or those with certain health conditions.