The effects of N acetylcysteine on ovulation and sex hormones profile in women with polycystic ovary syndrome: a systematic review and meta analysis British Journal of Nutrition Cambridge Core Effects of integrative administration of acetyl L carnitine, arginine, and Co Q10 in mitigating oxidative stress in over weight obese PCOS women L Carnitine: Benefits, Side Effects, And Dosage, Per Dietitians L Carnitine: Benefits, Uses, Side Effects, and More How to Lose Weight With PCOS L carnitine is a naturally occurring amino acid structure that is made in the human brain, liver, and kidneys. L carnitine plays a critical role in energy production, as it converts fat into energy.