SUPPORTIVE CLINICAL RESEARCH:

Standardised water-soluble extract of Eurycoma longifolia, Tongkat ali, as testosterone booster for managing men with late-onset hypogonadism.

http://www.ncbi.nlm.nih.gov/pubmed/21671978?dopt=Abstract

Eurycoma longifolia Jack in managing idiopathic male infertility.

http://www.ncbi.nlm.nih.gov/pubmed/20348942?dopt=Abstract

Tongkat Ali Raises Testosterone Levels in Men Over Fifties

http://www.ergo-log.com/tongkat-ali-raises-testosterone-levels-in-over-fifties.html

Effect of vitamin D supplementation on testosterone levels in men.

http://www.ncbi.nlm.nih.gov/pubmed/21154195

Effects of magnesium supplementation on testosterone levels of athletes and sedentary subjects at rest and after exhaustion.

http://www.ncbi.nlm.nih.gov/pubmed/20352370

Effect of Tongkat Ali on stress hormones and psychological mood state in moderately stressed subjects

http://www.jissn.com/content/10/1/28

A double-blind crossover study evaluating the efficacy of korean red ginseng in patients with erectile dysfunction: a preliminary report.

http://www.ncbi.nlm.nih.gov/pubmed/12394711?dopt=Abstract

Red ginseng for treating erectile dysfunction: a systematic review.

http://www.ncbi.nlm.nih.gov/pubmed/18754850?dopt=Abstract

Effects of tissue-cultured mountain ginseng (Panax ginseng CA Meyer) extract on male patients with erectile dysfunction.

http://www.ncbi.nlm.nih.gov/pubmed/19234482?dopt=Abstract

Clinical trial of Butea superba, an alternative herbal treatment for erectile dysfunction.

http://www.ncbi.nlm.nih.gov/pubmed/12937809?dopt=Abstract

Red blood cell magnesium and chronic fatigue syndrome.

http://www.ncbi.nlm.nih.gov/pubmed/1672392?dopt=Abstract

Efficacy of oral magnesium administration on decreased exercise tolerance in a state of chronic sleep deprivation.

http://www.ncbi.nlm.nih.gov/pubmed/9626901?dopt=Abstract

A double-blind randomized placebo cross-over controlled trial using the antioxidant vitamin E to treat reactive oxygen species associated male infertility.

http://www.ncbi.nlm.nih.gov/pubmed/7672157?dopt=Abstract

The effect of antioxidant treatment on human spermatozoa and fertilization rate in an in vitro fertilization program.

http://www.ncbi.nlm.nih.gov/pubmed/8751743?dopt=Abstract

Lipid peroxidation and human sperm motility: protective role of vitamin E.

http://www.ncbi.nlm.nih.gov/pubmed/8957697?dopt=Abstract

Effect of Lepidium meyenii (MACA) on sexual desire and its absent relationship with serum testosterone levels in adult healthy men.

http://www.ncbi.nlm.nih.gov/pubmed/12472620?dopt=Abstract

Lepidium meyenii (Maca) improved semen parameters in adult men.

http://www.ncbi.nlm.nih.gov/pubmed/11753476?dopt=Abstract

Clinical study of SS-cream in patients with lifelong premature ejaculation.

http://www.ncbi.nlm.nih.gov/pubmed/10688090?dopt=Abstract

Effects of Korean red ginseng on sexual arousal in menopausal women: placebo-controlled, double-blind crossover clinical study.

http://www.ncbi.nlm.nih.gov/pubmed/20141583?dopt=Abstract

A double-blind placebo-controlled study of ArginMax, a nutritional supplement for enhancement of female sexual function.

http://www.ncbi.nlm.nih.gov/pubmed/11554217?dopt=Abstract

The enhancement of female sexual function with ArginMax, a nutritional supplement, among women differing in menopausal status.

http://www.ncbi.nlm.nih.gov/pubmed/16959660?dopt=Abstract

Pharmaton capsules in the treatment of functional fatigue: A double-blind study versus placebo evaluated by a new methodology

http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1099-1573(199602)10:1% 3C49::AID-PTR772%3E3.0.CO;2-M/abstract

Vitamin D and fertility: a systematic review.

http://www.ncbi.nlm.nih.gov/pubmed/22275473

Vitamin D in human reproduction: a narrative review.

http://www.ncbi.nlm.nih.gov/pubmed/23294318

Association of hypogonadism with vitamin D status: the European Male Ageing Study.

http://www.ncbi.nlm.nih.gov/pubmed/22048968