Glutathione and L-citrulline aid lean body mass

Glutathione is an antioxidant in every cell, but highly concentrated in heart, muscle tissue, and the liver. L-citrulline is an amino acid that boosts the efficiency of working muscle.

In this study, 75 resistance-trained men, age 18 to 35, took 200 mg of glutathione plus 2,000 mg of L-citrulline, 2,000 mg of L-citrulline malate alone, or a placebo. The men were not likely to have heart or circulatory disease, didn’t smoke, and had not taken nutritional supplements for three months. The study lasted eight weeks. 

On exercise days, the men took the nutrients one hour before exercise. On non-exercise days, they took the nutrients at breakfast. 

After four weeks, lean body mass had increased in both L-citrulline groups compared to placebo, but strength increased only in the glutathione plus L-citrulline group.

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