[Urban Monk]

Any thoughts here dsade?

[dsade]

Depends what your primarily looking for effectswise.

I've seen mixed feedback on the GLPC, whereas PLCAR has yet to disappoint.

[dsade]

1: Int J Sport Nutr Exerc Metab. 2008 Feb;18(1):19-36.Links
Effect of glycine propionyl-L-carnitine on aerobic and anaerobic exercise performance.
Smith WA, Fry AC, Tschume LC, Bloomer RJ.

Dept. of Health and Sport Sciences, University of Memphis, Memphis, TN 38152, USA.

The purpose of this study was to evaluate the effect of glycine propionyl-L-carnitine (GPLC) supplementation and endurance training for 8 wk on aerobic- and anaerobic-exercise performance in healthy men and women (age 18-44 yr). Participants were randomly assigned to 1 of 3 groups: placebo (n=9), 1 g/d GPLC (n=11), or 3 g/d GPLC (n=12), in a double-blind fashion. Muscle carnitine (vastus lateralis), VO(2peak), exercise time to fatigue, anaerobic threshold, anaerobic power, and total work were measured at baseline and after an 8-wk aerobic-training program. There were no statistical differences (p> .05) between or within the 3 groups for any performance-related variable or muscle carnitine concentrations after 8 wk of supplementation and training. These results suggest that up to 3 g/d GPLC for 8 wk in conjunction with aerobic-exercise training is ineffective for increasing muscle carnitine content and has no significant effects on aerobic- or anaerobic-exercise performance.