www.niehs.nih.gov
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While it was previously hypothesized that restricting dietary methionine could aid cancer treatments, recent research reveals significant downsides for patients with healthy immune systems. Studies using mouse models demonstrate that a low-methionine diet paradoxically promotes the progression of tumors.
This amino acid, commonly found in protein-rich foods, appears to play a crucial role in immune regulation. When restricted, the diet alters immune cell behavior, potentially weakening the body’s natural defense mechanisms against cancer growth. Consequently, while methionine restriction might offer benefits in specific contexts, new findings suggest it could be detrimental to immune-competent patients, complicating dietary recommendations for cancer therapy.
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