L Carnitine Linus Pauling Institute Oregon State University Does L carnitine cause erectile dysfunction? What other brand of L Carnitine would this group recommend. I search and found 500mg but no 1000mg. Thank you. Acetyl L carnitine (ALCAR) improves mood, learning, and memory by aiding in the process that delivers energy to your cells. ALCAR also helps muscle mitochondria burn fat, which can increase your endurance, give you