3.6. Metabolic Profile Related to Red Beetroot Juice Intake
In order to evaluate if RBJ intake could have an effect on the urinary metabolic profile, a PLS-DA was performed on the data matrix comparing subjects on day B (physical activity with RBJ) to the same subjects on day C (physical activity with placebo). Sampling times from T2 to T4 were considered all together. The metabolic profiles of the two classes were well separated by inspecting the PLS-DA score plot (The differences in levels of Gln, 3-HIB, DA3S, and 4MP2CA observed between subjects on day B and day C resulted to also be significant (