What is in cum? What is cum made of?

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Human semen in a petri dish.

Human semen in a petri dish. Source: Wikipedia

Cum, or semen as it is properly called, is a complex cocktail of goodness that is the same for all males.  Semen contains small amounts of more than thirty elements, including:

  • fructose sugar
  • water
  • ascorbic acid (a.k.a. vitamin C)
  • cholesterol
  • creatine,
  • citric acid
  • lactic acid
  • nitrogen
  • vitamin B12
  • various salts and enzymes.

According to the Existential Diversity of Sperm website:

The average ejaculate contains between 6 – 13 cc’s of fluid (1 – 2 teaspoons); averages 15 calories, has most of the 191 amino acids found in Somatropin (HGH) and has over 90 trace minerals.

Semen has a pH of 7 and tastes acidic because of uric acid residue. During ejaculation, the cowper gland releases an acid nutralizer to protect the sperm on its journey through the urethra. The cowper rinses out most seminal impurities. 5% of sperm is testicular fluid; 60% is seminal fluid, 30% is prostate fluid and the remaining 5% is Cowper fluid.

Testicle fluid transports the sperm cells to the prostate where prostate fluid is added to nourish the sperm cells. Prostate fluid neutralizes acid in the female vaginal tract and can leak as ‘pre-cum’ when the penis is stimulated. Ejaculate travels at 17kph. Hydration and mutrition radically influence the quantity and quality of semen. Geneticists believe that women physiology can benefit from regular doses of sperm.

1% of ejaculate contains between 100 and 600 million sperm which would barely cover the period at the end of this sentence. The remaining 99% is designed to protect, feed and fuel the sperm to their ultimate destination:

ascorbic acid (1)
antigens (2) calcium
citric acid
DNA (3) fructose
glutathione (4) hyaluronidase (5)
inositol (6)
lactic acid magnesium nitrogen phosphorus  potassium 
purine (7) pyrimidin (8) pyruvic acid (9) sodium (10) sorbitol (11) urea (12)
uric acid(13) vitamin B12 zinc fructose citric acid enzymes
protein phosphate biocarbonate (14) cholesterol

(1) vitamin C
(2) proteins that stimulate the production of antibodies
(3) deoxyribonucleic acid
(4) the frontline: an important protein that kills free radicals
(5) protein that breaks-up acid, to lower the viscosity and increase the permeability of connective tissue and the absorption of fluids
(6) an alcohol that is a component of vitamin B
(7) special alkalies or bases that when mixed with acids create various types of salt
(8) an organic compound that causes the smell
(9) a colorless acid that aids in metabolism or fermentation
(10) pure salt
(11) A sugar alcohol (sweetener) with 4 calories per gram
(12) the chief solid component of mammalian urine; amazingly and stupidly, this is synthesized from ammonia and carbon dioxide to be used as fertilizer, in animal feed and in plastics
(13) tasteless, odorless crystalline product of protein metabolism; found in both blood and urine
(14) biocarbonate buffers are bases 

According to the Semen Therapy website:

Semen Content 
ascorbic acid (vitamin C, for tissue maintenance)
blood-group antigens (from immune system)
calcium (mineral)
chlorine (oxidizing agent)
cholesterol (steroid alcohol present in body fluids)
chlorine (base, part of the vitamin B complex)
citric acid (occurs during cellular metabolism)
creatine (nitrogenous substance found in muscle)
deoxyribonucleic acid (DNA)
fructose (sugar used for energy)
glutathione (peptide amino acid)
Glycoproteins (cancer fighting agent)
hyaluronidase (enzyme)
inositol (sugar found in muscles)
lactic acid (byproduct of muscle use)
magnesium (mineral)
nitrogen (gas found in all living tissue)
phosphorus (mineral)
prostaglandins (good for pregnancy)
potassium (mineral)
purine (compound of uric acid)
pyrimidine (organic base)
pyruvic acid (formed from either glucose or glycogen)
selenium (cancer fighting agent)
sodium (salt)
sorbitol (body alcohol)
spermidine (catalytic enzyme)
spermine (ammonia compound found in sperm)
urea (from urine)
uric acid (from urine)
vitamin B12 (for proper function of nervous system and metabolism)
zinc (mineral)

Semen Characteristics 
Volume (ml) > or = 2
pH 7.2-8.0
Sperm concentration (M/ml) > or = 20
Total sperm count (M/ejaculate) > or = 40
Morphology (% normal) > or = 30
Vitality (% live) > or = 75
WBC (M/ml) <1.0
Immunobead test (%sperm with beads) < or = 10 <20
MAR test (%sperm with RBCs) <10
Calorie equivalent in ejaculate 9 calories
Motility Within 1h of ejaculation
class a (%) > or = 25
classes a and b (%) > or = 50
Neutral alpha-glucosidase (mU/ejaculate) > or = 20
Total zinc (µmol/ejaculate) > or = 2.4
Total citric acid (µmol/ejaculate) > or = 52
Total acid phosphates (U/ejaculate) > or = 200
Total Fructose (µmol/ejaculate) > or = 13

Qualified SRN working in GU medicine Yahoo Answers Stephen3057

According to Wikipedia:

The components and contributions of semen are as follows:

Gland Approximate % Description
testes 2–5% Approximately 200- to 500-million spermatozoa (also called sperm or spermatozoans), produced in the testes, are released per ejaculation. If a man has undergone a vasectomy, he will have no sperm in the ejaculation.
seminal vesicle 65–75% amino acidscitrateenzymesflavinsfructose (2–5 mg per mL semen,[3] the main energy source of sperm cells, which rely entirely on sugars from the seminal plasma for energy), phosphorylcholineprostaglandins (involved in suppressing an immune response by the female against the foreign semen), proteinsvitamin C
prostate 25–30% acid phosphatasecitric acidfibrinolysinprostate specific antigenproteolytic enzymeszinc (the zinc level is about 135±40 micrograms/ml for healthy men.[4] Zinc serves to help to stabilize the DNA-containing chromatin in the sperm cells. A zinc deficiency may result in lowered fertility because of increased sperm fragility. Zinc deficiency can also adversely affectspermatogenesis.)
bulbourethral glands < 1% galactosemucus (serve to increase the mobility of sperm cells in the vagina and cervix by creating a less viscous channel for the sperm cells to swim through, and preventing their diffusion out of the semen. Contributes to the cohesive jelly-like texture of semen.), pre-ejaculatesialic acid


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