l carnitine peripheral artery disease Role of L-carnitine in oxidative metabolism. CoASH, acetyl-CoA; CPT, Effects of L-carnitine and its
Description
For this study, they included 45 resistance trained males who consumed this dietary supplement for 28 days

There was a significant increase in serum TAC at week 9 in the LCR group (0.18 mmol/L, 95% CI 0.07, 0.28) but not in the PLA group (-0.02 mmol/L, 95% CI -0.13, 0.09)

Blood specimens and card preparation

You can certainly combine the shots in the same syringe, but I do not recommend it (unless you are an expert), because if you get an air bubble in the syringe, as you extract the liquid from the vial, you will need to slowly return the liquid into the vial and re-extract it again till theres no bubbles
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