233. Dr. Roger Seheult: The Swiss Cheese Method of COVID Defense

Natural Immunity

Roger Seheult explores the complexities of natural immunity acquired through COVID-19 infection compared to vaccine-induced immunity. He highlights a study from the Cleveland Clinic, which found that prior infection with COVID-19 provided immunity comparable to vaccination in preventing infection, at least before the Delta variant emerged 1. However, the Delta variant has complicated this understanding, as antibody levels from natural infection may not be sufficient to prevent reinfection 2. Seheult notes the challenges in public health policy, stating,

When you talk about public health, it's either vaccinate or don't vaccinate. And that's a difficult question.

--- Roger Seheult

He suggests that a protocol for testing antibodies in previously infected individuals could be a reasonable approach 2.

   

Vitamin D

The role of Vitamin D in supporting the immune system against viral infections like COVID-19 is a focal point in Roger Seheult's discussion. He explains that Vitamin D receptors in white blood cells can influence immune responses, and low Vitamin D levels are associated with worse COVID-19 outcomes 3. A meta-analysis of 25 randomized controlled trials showed that regular Vitamin D supplementation reduced acute chest infections significantly 3. Seheult emphasizes the importance of maintaining adequate Vitamin D levels, stating,

Even Fauci says that he supplements with vitamin D. So I think this one's a no brainer supplement with vitamin D.

--- Roger Seheult

He recommends a daily dose of 4000 international units for those at risk of deficiency 4.

   

Diet & Inflammation

Roger Seheult delves into the relationship between diet, inflammation, and disease susceptibility. He explains that red meat consumption may contribute to inflammation due to sialic acids, which can lead to cardiovascular disease and potentially exacerbate COVID-19 severity 5. A study found that individuals on a low-carbohydrate, high-protein diet had a higher risk of severe COVID-19 compared to those on a plant-based diet 6. Seheult uses a vivid analogy to describe the impact of inflammation:

What determines how close to the cliff you are, is how much inflammation you have in your body.

--- Roger Seheult

Reducing inflammation through diet can help mitigate the risks associated with COVID-19 and other diseases 7.