Talking Food Allergies, Eczema, Asthma, and The Hygiene Hypothesis

You’re not sickly – your environment’s just changing way too quickly!

-An interview with Moises Velasquez-Manoff, author of “An Epidemic of Absence: A New Way of Understanding Allergies and Autoimmune Diseases.”


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I admit I scoured “An Epidemic of Absence: A New Way of Understanding Allergies and Autoimmune Diseases” in secret hopes of finding some magic bullets that would help us rid ourselves of multiple food allergies, asthma, and eczema. And I can honestly say I read my way to some hope. “An Epidemic of Absence” is an adept mash-up of history and science explaining how we humans have been co-evolving with parasites, bacteria and viruses so intimately, and for so long, that we are now metaphorically outsourcing some of our vital immune functions. Or at the very least, we’ve come to expect certain interactions, or battles, without which our immune systems miss key educational opportunities, deleteriously reacting to foods and pollens with allergies, or to our own bodies with autoimmune diseases.

Moises’ book reaffirmed my interest in probiotics, elucidating the latest research about how, depending on the strain, probiotics can either push the immune system closer to or further away from allergy. He inspired me to investigate helminthes, specifically TSO (trichisuris suis ova), and challenged me to think about allergies and asthma in a new way.

Buy An Epidemic of Absence: A New Way of Understanding Allergies and Autoimmune Diseases

The most significant takeaways from our interview:

  • Anecdotal evidence supports that parasite infection can successfully treat some people with allergies (but ultimately it’s an experiment and does not work for everyone).


  • Growing up with parasitic infections can be VERY DIFFERENT from electing to infect as an adult.


  • Explorations of “the hygiene hypothesis” are siloed and need to come together to better test some of the theories on humans.


  • The prenatal period and the first 2 years of life are crucial for immune system education.


Interview highlights with the matching time codes on the video:


1:18 – Moises tells how his own food allergy, asthma, and autoimmune alopecia lead him to explore helminthes, and how allergic diseases began to wreck havoc in the late 19th century.


2:52 – The concept of the Hygiene Hypothesis is defined.


3:55 – Research reveals that there is an inverse correlation with certain parasite infection and allergies, asthma, and other immune modulated diseases. There is a scientifically informed nascent underground movement of people self-infecting with the hookworm “necatur americanus,” tapeworm, and other parasites for their potentially potent anti-allergic and immune-modulating effects.


5:10 – Moises decides to join this movement and self-infects with 30 hookworm larvae – which lead to a host of symptoms, but also cause his hay fever and eczema to intermittently subside.


6:30 – Why Moises ultimately decided to kill his colony of hookworms after his symptoms (side effects of helminthic infection and allergies) never completely abated.


9:57 – Moises discusses Dr James Logan’s experiment of hookworm infection and wheat allergy.


10:40 – Noted some people were able to infect with 50 hookworms without any side effects. Painful symptoms are the host’s own immune response to the hookworm.


13:15 – Moises talks about how he “tested” his sesame allergy and peanut allergy while infected with hookworm.


14:20 – Exploring new ways to think about the emergence of modern diseases. A potential prescription of preventative treatment is laid out – in which exposure and probiotic treatments would be used to encourage developing healthy immune systems.


16:00 – It may be that proper immune education begins pre-conception (both maternal and paternal microbiomes matter) because these beginnings leave epigenetic imprints that can be conveyed by both sperm and egg.


19:23 – Reactions of hookworm carriers will vary greatly (from horrible symptoms to none) due to the immense diversity of immune systems. Growing up with chronic parasitic infection presents very differently than first infecting as an adult.


20:00Microbiome of Amerindians recently discovered to contain 150% bacterial diversity of western microbiome. These Amerindians are also highly parasitized and hosting helicobacter pylori so there is a robust interplay between all organisms and host.


21:00 – Helicobacter Pylori infection imparts potential protection from allergic disease. Mention of Martin Blaser, preeminent researcher in Helicobacter Pylori research.   H Pylori infection earlier in life is potentially more beneficial than infection later in life.


22:42 – The different strains of Helicobacter Pylori (African, European, and Native American strains) can be beneficial or harmful depending on genetic backgrounds.


24:19 – Part of risk of gastric cancer from Helicobacter Pylori may have to do with whether or not the strain is native to an individual’s genetic origins.


25:00 – Discussion of farm studies – rates of asthma & allergies and cord blood correlate to mother’s exposure to farm animals (farming mothers). Prenatal pre-programming reduces allergic disease in children born of women working on farms while pregnant. Supports the key window: in utero through second year of life.


28:15 – Study on adults who took up farming in Denmark and its effect on preventing the acquisition of new allergies.


30:00 – Discussion of studies in mice.   Spraying microbial elements on pregnant moms makes for less allergic pups. The full study.


31:00 – Immunotherapy works. Its possible to re-educate an immune system with allergies, it just takes time.


32:00 – Discussion of probiotics and peanut protein study that seemed to accelerate tolerance. (side note – according to the lead author on the study – the difference between OIT with probiotic vs. OIT alone was tolerance versus desensitization. Read Allergic Living interview and article. Study here.

The strain used was Lactobacillus rhamnosus CGMCC 1.3724 and 5 grams of it to boot.


33:30 – Moises wrote the book with the hopes that it would awaken in the siloed groups of scientists (parasitologists, gastroenterologists, immunologists) the desire to work together and better test some of the hypotheses he lays out.


35:00 – In this day and age, chronic disease presents the largest threat to our quality of life and our lives in general. Acute disease is no longer the biggest killer; its chronic disease.


37:00 – Danish parasitologist elects to self-infect with tapeworm and has no symptoms – despite hosting a potentially 30-foot guest.


39:00 – It’s been found that the people with the strongest allergic response had the fewest hookworms. (HH note: basically the stronger the attack against the hookworm, the more symptoms the person experiences. The less strong the immune response to hookworm, the less symptoms of infection – sometimes none.)


40:37 – Science has just woken up to the forgotten organ (the microbiome).


43:25 – We need to understand the nuances of parasitic infection and other microbial stimulants because studies have revealed that occasional exposure (vs. chronic) can actually ramp up allergic response. So these things need to be better understood before being embarked on because it’s possible to get more of what you don’t want happening.


47:15 – “On thing I’d hope people would take away from the book is – if you have an allergic disease, or you have an auto immune disease, the genetic tendencies that underlie these disorders helped us survive in other environments… It doesn’t mean you’re a sickly person. It means that you’re a person who is better at fighting off something in the past and you’re just in an environment with that sort of firepower that increases the risk of self-attack or inappropriate immune response. You just evolved in a very different environment than the one you’re in.

That’s the problem -that the world has changed.”

Buy An Epidemic of Absence: A New Way of Understanding Allergies and Autoimmune Diseases

Read the Q&A with Dr Xiu-Min Li where she discusses using Chinese herbs to switch the immune system from allergic to non-allergic.  She too discusses the concept of epigenetics.



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