every 100 ml of Male Semen contains 5g of protein, 27.6mg of Calcium and 102 mg of Glucose. It also has significant health benefits for women including working as a natural antidepressant, reduction of breast cancer, etc.
In addition to its central role in reproduction, some studies have made claims that semen may have certain beneficial effects on human health:
- Antidepressant: One study suggested that vaginal absorption of semen could act as an antidepressant; the study compared two groups of women, one of which used condoms and the other did not.
- Cancer prevention: Studies suggested that seminal plasma might reduce breast cancer by “not less than 50 percent.” This effect is attributed to its glycoprotein and selenium content, with apoptosis being induced by TGF-Beta. A related urban legend parodied these findings and claimed that performing fellatio at least three times a week reduced the risk of breast cancer.
- Preeclampsia prevention: It has been hypothesized that substances in semen condition a mother’s immune system to accept the “foreign” proteins found in sperm as well as the resulting fetus and placenta, keeping blood pressure low and thereby reducing the risk of preeclampsia. A study shows that oral sex and swallowing semen may help make a woman’s pregnancy safer and more successful, because she is absorbing her partner’s antigens.
- Increased libido: Another hypothesis has emerged that absorption of the testosterone contained in semen through a woman’s vaginal walls during sexual intercourse (or even through the act of swallowing semen) may increase her sex drive.
- Other studies claim adversarial effects:
- Cancer worsening: seminal plasma has prostaglandin elements that could accelerate the development of an already existing cervical cancer.
A 1992 World Health Organization report described normal human semen as having a volume of 2 ml or greater, pH of 7.2 to 8.0, sperm concentration of 20×106 spermatozoa/ml or more, sperm count of 40×106 spermatozoa per ejaculate or more, and motility of 50% or more with forward progression (categories a and b) of 25% or more with rapid progression (category a) within 60 minutes of ejaculation.
A 2005 review of the literature found that the average reported physical and chemical properties of human semen were as follows:
|Property||Per 100mL||In average volume (3.4 mL)|
|Lactic acid (g)||62||2.11|
|Buffering capacity (β)||25|
|Values for average volume have been calculated and roundedto three significant figures. All other values are those given in the review.|