Mettle is packed with 10 grams of BCAAs in a 2:1:1 ratio. BCAAs are building blocks for muscle growth and will help keep your body out of a catabloic state protecting muscle mass and promoting a positive nitrogen balance. With 2.5 grams of Glutamine you will be able to speed up recovery from a grueling workout and support growth hormone release. Precision also adds in 1g of citrulline to help oxygenate your muscles during your workout and allow for better pumps during your workouts.
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