When the name of the disease ceases to be what matters
In recent decades, autoimmune diseases have experienced exponential growth.
Rheumatoid arthritis, lupus, Hashimoto's thyroiditis, Crohn's disease, ulcerative colitis, psoriasis, multiple sclerosis, type 1 diabetes… the list keeps growing.
Conventional medicine has responded to this epidemic with a proliferation of diagnostic labels , pharmacological protocols, and immunosuppressive treatments.
However, from an orthomolecular perspective, it is becoming increasingly clear that the specific name of the disease matters much less than the biological terrain on which it develops.
In other words: beyond the diagnosis, autoimmune diseases share common pathophysiological roots.
This article delves with surgical precision into a key idea:
Behind virtually all autoimmune diseases lie two major causal pillars:
- Toxic overload (exogenous and endogenous)
- Intestinal hyperpermeability ("leaky gut")
Understanding these pillars not only changes the way we understand the disease, but also opens the door to real, personalized therapeutic strategies focused on the cause, not just the symptom.
What is an autoimmune disease? An insufficient definition
From a conventional point of view, an autoimmune disease is defined as one in which the immune system mistakenly attacks the body's own tissues.
This definition, although technically correct, is superficial and incomplete.
The key question that is rarely asked is:
Why does the immune system—designed to protect us—decide to attack the body itself?
The answer cannot be limited to genetics, but must include epigenetics.
While there is a genetic predisposition, this does not explain the explosive increase in these pathologies in such a short time.
Genes do not change in two generations.
The environment, yes.
This is where functional, orthomolecular, and natural medicine provides a much deeper insight.
The most common autoimmune diseases (and why they share common ground)
Before discussing common causes, it is worth briefly reviewing some of the most frequent autoimmune diseases:
🔹 Systemic inflammatory autoimmune diseases
- Rheumatoid arthritis
- Systemic lupus erythematosus
- Autoimmune vasculitis
🔹 Digestive autoimmune diseases
- Crohn's disease
- Ulcerative colitis
- Celiac disease
🔹 Autoimmune endocrine diseases
- Hashimoto's thyroiditis
- Graves-Basedow disease
- Type 1 diabetes mellitus
🔹 Neurological autoimmune diseases
- Multiple sclerosis
- Myasthenia gravis
🔹 Autoimmune skin diseases
- Psoriasis
- Vitiligo
- Dermatitis herpetiformis
Although they affect different organs, they all share similar biological patterns: chronic inflammation, intestinal dysbiosis, chronic stress, oxidative stress, disruption of biological barriers, and toxic overload.
First pillar: toxic overload
We live in an unprecedented toxic environment
Modern humans are exposed to tens of thousands of chemical substances that did not exist just 100 years ago.
Many of them act as:
- Endocrine disruptors
- Immunotoxic agents
- Neurotoxins
- Hepatotoxic
Some common examples:
- Heavy metals: mercury, lead, cadmium, aluminum
- Pesticides and herbicides (glyphosate)
- Plastics and microplastics (BPA, phthalates)
- Cosmetics and hygiene products
- Drugs for chronic use
- Food additives
The immune system doesn't attack "just because"
When the body is overwhelmed by toxins, the immune system enters a state of constant hyperactivation.
This sustained activation generates:
- Low-grade inflammation
- Oxidative stress
- Tissue damage
- Alteration of immunological tolerance
In this context, the immune system loses the ability to correctly distinguish between self and non-self.
Blocked detoxification: the major bottleneck
Key organs such as the liver, kidneys, intestines, and lymphatic system can become overwhelmed.
When the elimination pathways do not function properly, the body is forced to store toxins in tissues (fat, joints, nervous system), perpetuating the immune conflict.
Second pillar: intestinal hyperpermeability
The gut: epicenter of the immune system
More than 70% of the immune system resides in the gut.
This makes the intestinal barrier a critical structure for immune health.
Intestinal hyperpermeability occurs when the tight junctions of the intestinal epithelium are altered, allowing the passage of:
- Poorly digested food fragments
- Bacteria and endotoxins (LPS)
- Fungi and toxic metabolites
Leaky gut as an autoimmune trigger
When these substances cross the intestinal barrier and enter the bloodstream, the immune system identifies them as threats.
The problem arises when:
- Some food proteins mimic their own structures (molecular mimicry)
- Cross-antibodies are generated
- The immune attack is directed against the body's own tissues.
This mechanism is widely implicated in diseases such as:
- Hashimoto
- Rheumatoid arthritis
- Multiple sclerosis
- Psoriasis
What damages the intestinal barrier?
- Gluten and inflammatory proteins
- Intestinal dysbiosis
- Intestinal infections
- Chronic stress
- Drugs (NSAIDs, antibiotics, PPIs)
- Nutritional deficiencies
The gut-immunity-inflammation axis
The combination of toxins and leaky gut creates the perfect storm:
- Toxins damage the intestinal lining
- Increases permeability
- Antigens enter the bloodstream
- The immune system is activated
- Immune tolerance is lost
- The autoimmune disease appears
It is not a one-off event, but a progressive, silent, and cumulative process.
Orthomolecular perspective: correct the terrain
Orthomolecular nutrition does not focus on suppressing the immune system, but rather on:
- Reduce the toxic load
- Reduce chronic stress
- Repairing biological barriers
- Correct nutritional deficiencies
- Modulating inflammation
Key nutrients in the autoimmune approach
- Vitamin D
- Zinc
- Selenium
- Magnesium
- Omega 3
- Glutamine
- B vitamins
These micronutrients are essential cofactors for immune regulation and intestinal repair.
From a natural and integrative perspective, the approach involves:
- Anti-inflammatory and personalized nutrition
- Elimination of reactive foods
- Progressive detoxification protocols
- Restoration of the microbiota
- Stress and HPA axis management
- Supplementation based on clinical evidence.
The goal is not to "silence" the immune system, but to restore its ability to self-regulate.
Conclusion: Changing the question changes everything
The question shouldn't be:
What autoimmune disease do I have?
But:
What has caused my immune system to lose tolerance ?
When it is understood that toxicity and intestinal hyperpermeability are common pillars, the therapeutic approach ceases to be fragmented and becomes truly integrative.
This paradigm shift not only offers hope, but also a real path towards recovery and improved quality of life, addressing the root of the problem and not just its manifestations.
If you find yourself in any of the situations described related to an autoimmune problem and so far no one has been able to help you reverse it, at Scientific Nutrition Barcelona we can study your case in depth.
We carry out an individualized therapeutic approach, aimed at restoring immune tolerance, reducing underlying inflammatory processes and improving your overall health, taking into account all factors that may be involved.
You can book an appointment with one of our professionals at the following link: https://nutricioncientificabarcelona.com/pages/consultas