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    Can energy drinks lower sperm count?
    An_242230 posted:
    Me and my husband want to start trying to get pregnant next year. I was just wondering, can energy drinks lower sperm count cause my husband drinks about 5-6 a week.
    David K Walmer, MD, PhD responded:
    Although some health concerns are being raised about the health impact of consuming high doses of caffeine through energy drinks, there is no evidence that consuming caffeine-laden drinks in moderation is harmful to general health or male fertility. In moderation, caffeine actually appears to stimulate sperm motility. I apologize for the technical nature of this response but below is a 2011 article that addresses your question and a website that reports on the caffeine content of a number of beverages. (I can not attest to the accuracy of the information on this website so please verify from other sources if interested.)

    Handb Exp Pharmacol. 2011;(200):349-72.
    Methylxanthines and reproduction.
    Minelli A , Bellezza I .
    Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Università degli Studi di Perugia, Perugia, Italy.
    Reproduction is the process by which organisms create descendants. In human reproduction, two kinds of sex cells, or gametes, are involved. Sperm, the male gamete, and egg egg , or ovum ovum Vedi egg , the female gamete, must meet in the female reproductive system to create a new individual and both the female and the male reproductive systems are essential to the occurrence of reproduction. Scientific reports dealing with the effects of methylxanthines on reproduction are mostly centred on the use of these compounds as phosphodiesterase inhibitors that, by maintaining high intracellular levels of cyclic AMP (cAMP) cyclic AMP , will affect the gametes differently. High cAMP levels will sustain sperm sperm maturation while they hold the oocytes in mitotic arrest. Caffeine caffeine , being the methylxanthine most widely consumed by every segment of the population, has been the subject of greatest interest among health professionals and researchers. Conflicting results still seem to characterize the association between male/female caffeine caffeine consumption in adult life and semen quality/fertility fertility , although moderate daily caffeine consumption of levels up to 400-450 mg/day (5.7-6.4 mg/kg/day in a 70-kg adult) do not seem to be associated with adverse effects, i.e. general toxicity, effects on bone status and calcium balance, cardiovascular effects, behavioural changes, increased incidence of cancer, or effects on male fertility.

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