L-Carnitine improves sperm quality in men

L-Carnitine Improves Sperm Quality

Biochemists at Hamdard University (Karachi) have investigated the relationship between L-Carnitine and the quality of the sperm of 61 men. They found once again that the level of L-Carnitine present in the semen of the male subjects directly related to the quality of their sperm. The quality of the sperm was judged by examining the sperm count, the degree of movement of the sperm, and its appearance (morphology). 



The researchers were led by Professor Ahmed, and they examined 61 men who had some degree of oligozoospermia, which meant they had a low sperm count, or asthenozoospermia, which meant the movement of the sperm in the ejaculate was impaired. In men with subfertility, it was found that the level of L-Carnitine in their semen was significantly lower in comparison to men with a normal result from their sperm analysis.

Consistent research findings on fertility and micronutrients

The findings of this investigation are not new. However, they will only be truly confirmed through a range of research into the role of L-Carnitine in the development of more motile and healthier sperm. 2


A range of research has been conducted into Carnitine and various other micronutrients such as L-Arginine, L-Glutathione, Zinc, Selenium, Vitamin C, Vitamin E and Coenzyme Q10 3, Selen, Vitamin C, Vitamin E, Coenzym Q10 4. On the basis of these investigations, a variety of very effective combination products to improve the quality of sperm have been developed.

Men who want to improve their fertility have an effective, side effect-free and non-pharmacological tool at their disposal in the form of amino acids and micronutrients.


Studien zu L-Carnitin und Fruchtbarkeit (kleiner Auszug)

  1. “Ahmed, SD, Karia, KA, et al.; Role of L-carnitine in male infertility; J Pak Med Assoc. 2011 Aug;61(8):732-6.”
  2. u.a. mit identischen Ergebnissen bei Li et al, Level of free L-carnitine in human seminal plasma and its correlation with semen quality; Zhonghua Nan Ke Xue. 2007 Feb;13(2):143-6. und bei Gürbüz et al., Relationship between semen quality and seminal plasma total carnitine in infertile men; J Obstet Gynaecol. 2003 Nov;23(6):653-6
  3. z.B. bei Colagar et al.; Zinc levels in seminal plasma are associated with sperm quality in fertile and infertile men; Nutr Res. 2009 Feb;29(2):82-8.
  4. Mancini et al.; An update of Coenzyme Q10 implications in male infertility: biochemical and therapeutic aspects; Biofactors. 2005;25(1-4):165-74.