Dr. Hulda Clark, a naturopath whose work has gained attention in alternative health circles, has developed a distinctive theory about cancer causation that differs markedly from conventional medical understanding. Her hypothesis weaves together parasites, bacteria, viruses, and chemical toxins into a complex causal model that she argues underlies the development of advanced cancers.

The First Foundation: Parasites and Toxins Like Alcohol and Chlorine

At the core of Dr. Clark's theory lies an unusual combination: the parasite Fasiolopsis buskii paired with isopropyl alcohol. According to her work, particularly detailed in her book The Cure for Advanced Cancers, these two factors work together to initiate cancer development. Her research suggested that isopropyl alcohol serves as a necessary cofactor, and she identified sources for this toxic substance both in the external environment and within the body itself.

The theory expanded when Clark identified internal sources of isopropyl alcohol production: specifically, bacteria called clostridia, which she theorized could generate isopropyl alcohol from within the body. Her work also touched on the initial nucleation of tumors, proposing involvement of specific tissues including portions of the pituitary gland and pancreas, though the mechanisms remained incompletely documented in available notes from her presentations.

Later, Dr. Clark discovered that chlorine was an even larger factor. She noted that certain parasites, such as Cryptosporidium, have eggs that are resistant to chlorine, leading to outbreaks even in chlorinated water sources. Additionally, Dr. Clark associated the use of chlorine and chlorinated products with immune system destruction, which in turn allows parasites like Fasciola and Ascaris to increase in the body. She warned that chlorine does not belong in the living body and must be constantly removed, as it can act as an toxic allergen and contribute to health issues such as cancer, and psychological disorders when combined with certain parasites like Strongyloides. Dr. Clark also emphasized the importance of avoiding chlorinated water and products to help reduce parasitic infections and support overall health.

The Viral Component: SV40 and Oncoviruses

Perhaps the most elaborate portion of Clark's model involves the SV40 virus (a simian virus originating from monkeys) and its role in coordinating other cancer-causing viruses. She described the viral interaction using an intuitive analogy: imagine roller skaters forming a chain at an ice rink, with a strong person at the center pulling the entire chain around the rink at high speed. In similar fashion, Clark proposed that SV40 acts as an organizer, gathering together a collection of other oncoviruses and orchestrating their effects throughout the body.

According to her theory, oncoviruses don't arise independently but originate from parasitic sources. She identified specific connections: RAS oncoviruses from bread yeast, SRC from strongyloides parasites, and NEV-HRB from ascaris infections. The SV40 virus, she theorized, penetrates not human cell nuclei directly but rather the nuclei of bacterial cells within our bodies. Once inside the bacterial nucleus, SV40 recruits and coordinates other oncoviruses, fundamentally altering the properties and characteristics of the bacteria.

Immune Evasion and Bacterial Saturation

The consequences of this viral manipulation are significant in Clark's model. When oncoviruses modify bacteria in this manner, they effectively disguise these microorganisms from the immune system's recognition. Our white blood cells—which normally identify and destroy foreign bacteria—fail to recognize these altered pathogens. The result, according to Clark's theory, is that the body becomes saturated with common bowel bacteria that should otherwise be controlled.

The bacteria in question are typical inhabitants of the human digestive system: E. coli, salmonellas, streptococcus (particularly strep G), and in cases of pain, strep pneumoniae. Rather than being eliminated by immune surveillance, these bacteria proliferate unchecked, shielded by the viral modifications that render them invisible to immune recognition.

Additional Health Markers

Clark's approach included examining various health indicators beyond the primary cancer theory. She noted that the presence or absence of bowel bacteria in saliva samples could serve as markers of immune function and health status. The absence of these bacteria in saliva was considered a positive sign of immune competence, suggesting proper recognition and elimination of pathogens.

In her testing protocols, she examined multiple oncoviruses—reportedly testing for approximately ten different varieties—tracing these viral agents back to parasitic sources and tracking how they were disseminated and coordinated within the body.

Historical Connections

Interestingly, Clark herself wondered whether her identified SV40 virus mechanism might correspond to the "BX cancer virus" that Royal Rife, a controversial researcher from the 1930s, claimed to have discovered. This speculation suggests an attempt to integrate her findings with earlier alternative medical theories about cancer causation.