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Less than two weeks after the volunteers were instructed to consume foods with the amino acids cysteine and glycine, such as lentils and sunflower seeds, their ability to burn body fat jumped to a rate similar to the average young adult

C-reactive protein as an effector molecule in covid-19 pathogenesis

Culhuac, E.B., et al

Group I received 0.1 M citrate buffer at pH 4.5 orally as normal control

8 The GlyNAC combination (glycine + NAC, addressing both rate-limiting precursors simultaneously) produced particularly robust results in a 16-week, placebo-controlled RCT in older adults: it corrected glutathione deficiency, reduced oxidative stress, improved mitochondrial fatty-acid oxidation, and enhanced physical performance measures including gait speed and the 6-minute walk test