Semen
Produced in the testes from the body's finest hormones, proteins, and fats, sperm carries morphically flexible stem cells functionally comparable to embryonic stem cells, making it a therapeutic substance for tissue regeneration, skin repair, and cellular development when sourced from a non-toxic individual.
Semen, in Aajonus Vonderplanitz's framework, is one of the most concentrated and biologically potent substances the human body produces. He understood it not merely as a reproductive fluid but as a dense repository of stem cells, hormones, proteins, and fats capable of both internal and external therapeutic application. The stem cells present in healthy sperm, he argued, are functionally similar to embryonic stem cells in their ability to morph into virtually any cellular structure in the body, from bone to brain tissue to toenails, a property he considered practically unmatched outside of bone marrow. He drew directly on research from Howard Hughes Medical Research, where scientists had found that spermatogonial adult stem cells from mice could morph like embryonic stem cells, and he generalized this finding to all healthy mammalian sperm.
The quality of sperm, however, is entirely dependent on the health of the man producing it. Aajonus was explicit that sperm from men whose testicles have accumulated heavy metals, particularly mercury, is not only useless therapeutically but actively dangerous. He used odor as the primary diagnostic tool: healthy sperm should smell slightly gamey, faintly like off dairy, while sperm contaminated with heavy metals smells distinctly metallic, like a hot iron producing steam, a smell anyone who has ironed fabric with water will recognize. If sperm carries that metallic, cauterized odor, he directed people not to use it topically and never to swallow it.
He also noted his own sperm quality as a reference point. Having eaten 99.9999% raw for 35 years and raw meat for 31 of those years at the time of his newsletter writings, he observed that his sperm in a Petri dish lived one to five days rather than the zero to three days typical of sperm developed on a standard American diet. He considered this an indicator of the therapeutic superiority of sperm produced on the Primal Diet, though he acknowledged he could not confirm this scientifically with respect to spermatogonial cell quality specifically.
Stem Cells in Sperm Therapy
The central reason Aajonus elevated semen to therapeutic status was its stem cell content. He explained that stem cells are growth cells, and that embryonic and adult spermatogonial stem cells can morph into any cellular structure within the body, whereas ordinary adult stem cells are RNA/DNA-specific and cannot change into other cell types. Sperm is one of only two accessible sources of these morphically flexible stem cells, the other being bone marrow. Ova would theoretically contain equivalent properties, but Aajonus considered them practically impossible to harvest in any useful quantity.
He described sperm as "a very concentrated nutrient that causes great expansion and development, hormonally, physically, everything." Because of this concentration, he extended the therapeutic logic: an egg fertilized by healthy sperm on the Primal Diet would be a "much more bioactive egg," and he called that outcome "absolutely preferable."
He pointed to Japanese scientific work using mice sperm as stem cell sources to regenerate tissue across multiple organ types, and reported that scientists in Japan were using sperm as both a feed and a topical application in animal models with, in his words, "incredible results" nearly as potent as bone marrow.
His practical conclusion was direct: if a person cannot access bone marrow, sperm is the next best source of stem cells. If sperm from a trusted source with no toxic metal load is available, he recommended using it. If bone marrow is accessible, it is easier to obtain and does not require "dealing with the guy."
Topical Use for Skin Regeneration
Aajonus described applying sperm directly to the skin as a means of reducing wrinkles, repairing fine lines, and improving skin thickness and texture. He reported using it on his own forehead, where he had carried very deep creases since childhood that had deepened over decades. Over a five-month period of applying sperm (and sometimes bone marrow) to the area without using any other topical treatment such as collagen or cucumber juice during that window, he observed significant mitigation of even his deepest wrinkles and a thinning of skin that had been abnormally thick on his forehead.
He described the ideal application as rubbing fresh, non-toxic sperm directly into the skin, treating it as he would bone marrow. He was clear that the combination of sperm and collagen precursors from cucumber would accelerate wrinkle resolution considerably faster than either alone.
He told the story of a woman in Los Angeles who owned a beauty salon and had been very ill in her early thirties before adopting the diet. After beginning the diet in her mid-thirties, she began using sperm topically. He also noted women who started using sperm from their boyfriends, with the boyfriends eventually discovering the cosmetic effect and wanting to market or sell the product. Aajonus made clear he had no hesitation recommending it regardless of social awkwardness: "I don't care if it's manure, sperm, or whatever it is. Urine, if it works, do it."
He positioned bone marrow as the more practical and accessible alternative for most people, noting that in three months of rubbing bone marrow on skin, approximately 90% of dryness and wrinkles can resolve. But sperm, when available from a healthy, non-toxic source, produces equivalent or comparable effects through the same stem cell mechanism.
Heavy Metals and Testicular Toxicity
Aajonus was consistent and emphatic that the testes, being fat-rich glands, are primary sites of toxic metal storage. The body normally deposits toxins in fat-rich tissues, and the testes qualify. When a man's system carries a significant burden of heavy metals, particularly mercury, those metals concentrate in the testicles and are incorporated into the sperm itself.
The consequence is twofold. First, the sperm becomes therapeutically useless or actively harmful. He instructed clearly: if sperm smells metallic or like a hot iron, do not use it topically and do not swallow it. He mentioned that such sperm could still be used to fertilize something, humorously suggesting "the lawn," but had no therapeutic value for human application. Second, the toxic load in the testes creates an unusual physiological dynamic: the body attempts to discharge the toxins by building them into the sperm and ejaculating them out, much as toxic minerals move from brain tissue to the skull and then into the hair for elimination. This ejaculatory discharge mechanism means that a man with heavy metal toxicity in his testes will, when he ejaculates into a partner, transfer some of that toxic load to that person.
Aajonus was candid about his own situation: "I've got lots of toxicity in mine so I do not ejaculate into anybody for that reason." He recommended the withdrawal method as a practical measure specifically tied to this toxic transfer concern, not only as birth control.
He also explained that toxic irritation of the testes creates a paradoxical state of sexual overactivation. When toxins enter the testes and irritate the glandular tissue, the body ramps up the drive to ejaculate in order to discharge the accumulated poisons via the sperm and the fats and proteins carried in it. This means a man who would not normally be oversexual may become compulsively so because of toxic accumulation in the testes, an overactivity that does not reflect healthy hormonal function.
Ejaculation And Nutrient Depletion
Aajonus addressed the traditional yogic and esoteric view that ejaculation depletes life force, a view connected to practices of ingesting one's own semen to recapture lost nutrients. He acknowledged the physiological basis of that concern: semen is composed of the finest hormones, proteins, and fats the body can produce, and losing it through ejaculation represents a real nutrient expenditure. He referenced Indian yogic traditions where men on grain-heavy diets with no animal protein consumed their own semen out of nutritional necessity, and he connected the same survival logic to the origin of urine drinking in protein-starved communities.
His position, however, was that on the Primal Diet, this nutrient loss does not produce depletion in the same way. With sufficient raw animal proteins, fats, and glandular foods, the body replenishes what it loses through ejaculation without stress. He stated directly: "That's right. On this diet one could actually ejaculate without being depleted." He associated the no-depletion condition with dietary sufficiency rather than with any esoteric practice of retention.
He also noted a caution about consuming one's own sperm when the body is in a detoxification phase. He stated that when a man gets healthy enough to begin throwing off toxins through the testes, the sperm can carry significant toxic material, making self-consumption or partner exposure inadvisable during those periods.
Ejaculation and Glandular Toxin Discharge
He described the mechanism by which the body uses the testes and ejaculation as a toxin elimination pathway in some detail. Toxins that reach the glands, where fat concentrations are highest, may reside there and slowly damage the glandular tissue. The body's response, when it cannot process and neutralize the toxin in place, is to incorporate it into the glandular secretion, in this case the sperm and its surrounding hormonal matrix, and discharge it. This is directly parallel to the process by which toxic minerals migrate from the brain into the skull, are incorporated into hair, and exit the body through the hair shaft.
If the toxin penetrates into the testosterone, Aajonus explained, it can have a systemic stimulant effect, running the whole body "like he's on speed" while simultaneously exciting the man sexually, because the body is signaling an urgent need to discharge the contaminated testosterone through ejaculation and sperm production. The sexual excitation is therefore not a sign of genuine hormonal vitality but of a toxin-driven emergency response.
Pre-Ejaculatory Fluid, Sperm, and Pregnancy
Aajonus addressed the question of whether pre-ejaculatory fluid contains viable sperm, and was unequivocal: it does not, and pregnancy from pre-ejaculate is physiologically impossible by his analysis. He stated he had analyzed the pre-secretions of at least 20 men and found they all contain urine. The pre-flow is the body's mechanism for clearing the urethra of ammonia residue from kidney function, because ammonia kills sperm. Ammonia does not merely kill sperm, he said; it kills some and completely paralyzes the rest, rendering them unable to swim. With no mobile sperm in the pre-ejaculatory fluid, conception cannot occur from it.
His conclusion: "The only way you can get pregnant is if a man ejaculates into you. Period." He used this analysis to argue that tribal cultures without access to modern contraception successfully controlled reproduction by ensuring the man ejaculated outside the woman, a practice he said tribal communities could rely on because the physiology is sound when you understand it. He challenged the widespread claim that pulling out fails because of pre-ejaculate, calling it "absurd" and "not true."
Male Responsibility And Birth Control
Aajonus was direct that birth control is the man's responsibility because it is the man's sperm that causes pregnancy. He wrote in We Want to Live that a man who wants to be certain he does not impregnate a woman must not ejaculate inside her, and that it is not enough to rely on anyone else's calculations. He was pointed in his moral framing: "If he can't pull before he ejaculates, it is his fault that a woman gets pregnant. And he should have his balls cut off if that woman didn't want to get pregnant."
He noted an alternative to withdrawal for men: holding the scrotum can also prevent ejaculation from occurring internally, though he did not elaborate on the mechanism in detail beyond acknowledging that one does not necessarily have to withdraw physically if this approach is applied correctly.
As backup measures for women, he described the use of a diaphragm or cervical cap eight days before and during ovulation (ten days total), immediate douching with apple cider vinegar if birth control failed, and drinking a blended combination of six tablespoons of fresh papaya seeds with half a cup of good drinking water, taken one to three hours before sex or within 20 minutes after, as a method that "usually prevents pregnancy."
Sperm Temperature And Scrotal Hair
He observed that sperm cannot function above approximately 98 degrees Fahrenheit and operate optimally at or below 96 degrees. This is why the testes are housed externally rather than internally and why the scrotal area is shaded by pubic hair: the hair maintains a cooler microenvironment for the sperm. He presented this as a straightforward evolutionary function of body hair in the groin region, providing the thermal regulation that sperm viability requires.
Sperm Transmission of Disease
Aajonus referenced the work of Dr. Strucker to argue that disease transmission through ejaculate is far more limited than conventionally claimed. He cited Strucker's finding that there are only two viruses per ejaculation and five white blood cells, a quantity he considered far too small to produce systemic infection. His broader framework holds that viruses are not living organisms capable of self-replication but are instead solvents produced by cells to dissolve toxicity, meaning they cannot "procreate" and therefore cannot be transmitted in the way infectious disease models claim.
He applied this specifically to the argument that HIV/AIDS cannot be sexually transmitted, stating it "has to be injected into your body" and that bleeding during anal sex is outward rather than inward, preventing uptake. He did not apply this reasoning to eliminate the concern about toxic metal transfer through ejaculate, which he treated as a genuine and separate risk.
The Biological Cost Of Sperm
He described sperm production as drawing on the body's finest available hormones, proteins, and fats. The glands that produce these secretions are the most fat-rich tissues in the body, and the hormones that constitute the semen matrix, including testosterone in its refined form, represent the highest quality biological material the body can produce at a given time. This is why ejaculation, when the diet is insufficient, creates genuine depletion, and why, historically, protein-starved populations developed cultural practices around semen retention or self-consumption.
He also referenced the role of glandular foods in supporting sperm production and sexual function. In one anecdote, he described preparing a gland shake from brain, adrenal glands, ovaries, lungs, thymus, thyroid, pancreas, and other glandular tissue blended with milk and a small amount of honey. After consuming approximately three cups of this preparation while finishing butchering a deer, he reported having sufficient energy to have sex until five in the morning, attributing this to the glandular hormone content. He used this as an illustration of how glandular nutrition directly supports the reproductive and sexual systems.
He noted that the hormones produced during ejaculation form endorphins, which promote relaxation. For people with high glandular activity and overproduction of certain hormones, ejaculation can serve as a pressure-release that channels excess hormonal production into a usable output.
Prostate's Role In Ejaculation
He identified the prostate as the muscle responsible for driving sperm out during ejaculation. After his own prostate surgery in August of a recent year, during which the surgeon scraped two inches of the bladder wall to reduce thickness, Aajonus noted that his ejaculatory force was significantly reduced because the prostate muscle had been compromised. He described this as a direct mechanical consequence of the procedure.
He was strongly opposed to prostate removal, which he argued eliminates the possibility of erection and ejaculation entirely by severing blood channels to the penis and removing the muscular driver of ejaculation. He emphasized that without a prostate, a man cannot adequately pressurize blood into the penis for erection and cannot generate the muscular contraction needed to ejaculate. He called prostate removal one of the worst outcomes conventional medicine produces in male patients, noting it destroys sexual function permanently.
Sperm Health: Primal Versus American Diet
Aajonus made a direct comparison between sperm quality on the Primal Diet and sperm quality on the standard American diet. He observed in a Petri dish that his own sperm lived one to five days compared to the zero to three days typical of standard American diet sperm. He used this longevity as a proxy for biological vitality and therapeutic potential, reasoning that nerve cells reproduce on the Primal Diet but not the standard diet, and conjectured that sperm developed on the Primal Diet should therefore be "exceptionally therapeutic."
He was careful to note that this was a reasonable conjecture rather than scientific certainty, because he could not confirm with laboratory equipment whether spermatogonial cell quality is significantly improved by diet beyond the longevity observation in his informal Petri dish test.
