In this placebo-controlled study of 60 infertile men, giving L-carnitine (LC) and Acetyl-L-Carnitine (ALC) increased sperm motility and improves the total free radical scavenging capacity in semen. The study design was 1 month of run in, 6 months of therapy or placebo, and 3 months of follow-up evaluation. The participants were randomized to a double-blind therapy of LC 3 g/day, ALC 3 g/day, a combination of LC 2 g/day and ALC 1 g/day, or placebo. Results showed that total sperm cell motility and forward sperm cell motility increased in subjects who received ALC alone, or in combination with LC after 3 months. Those with the worst sperm motility had the best response.
I recommend Acetyl-L-Carnitine 1,000 mg/day plus Carnitine 1,000 mg/day.
“Placebo-controlled double-blind randomized trial on the use of L-carnitine, L-acetylcarnitine, or combined L-carnitine and L-acetylcarnitine in men with idiopathic asthenozoospermia,” Balercia G, Regoli F, et al, Fertil Steril., 2005; 84(3): 662-71.
Jacob Teitelbaum, M.D. is one of the world's leading integrative medical authorities on fibromyalgia and chronic fatigue. He is the lead author of four research studies on their treatments, and has published numerous health & wellness books, including the bestseller on fibromyalgia and chronic fatigue syndrome From Fatigued to Fantastic! and his newer The Fatigue and Fibromyalgia Solution. Dr. Teitelbaum is one of the most frequently quoted fibromyalgia experts in the world and appears often as a guest on news and talk shows nationwide including Good Morning America, The Dr. Oz Show, Oprah & Friends, CNN, and Fox News Health.