Although I run the risk of being off-topic, but since we're already at it, I guess I might add a little more info in your statement.
Firstly, perhaps you mean 'semen' instead of 'sperm'.
Secondly, here's some interesting info I digged up from
wikipedia:
Health effects
In addition to its central role in reproduction, various scientific findings indicate that semen has certain beneficial effects on human health, both proven benefits and possible benefits:
Antidepressant: One study suggested that vaginal absorption of semen could act as an antidepressant in women; the study compared two groups of women, one of which used condoms and the other did not.
Cancer prevention: Studies suggest that seminal plasma both prevents and fights cancer, particularly breast cancer, reducing risk 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 sperm may help make a woman's pregnancy safer and more successful, because she is absorbing her partner's antigens.
Nutritional value
Semen is primarily water, but contains trace amounts of almost every nutrient the human body uses.[citation needed] It has somewhat higher amounts of commonly deficient minerals, such as potassium, magnesium, and selenium. One typical ejaculation contains 150 mg of protein, 11 mg of carbohydrates, 6 mg fat, 3 mg cholesterol, 7% US RDA potassium and 3% US RDA copper and zinc. When metabolized, protein yields 4 kcal/g, carbohydrate also yields 4 kcal/g, and fat yields 9 kcal/g. Hence the food energy in the typical ejaculation is 0.7 kcal (2.9 kJ).
