Why We Keep Getting Sick: The Six Biological Roots of Disease

Mexico invests billions of pesos every year in healthcare. We have world-class hospitals, access to cutting-edge pharmaceuticals, and highly trained physicians. And yet, chronic non-communicable diseases continue to dominate our mortality statistics year after year.

According to INEGI's most recent mortality report, heart disease, diabetes, and cancer remained the three leading causes of death in 2024, together accounting for more than 400,000 cases out of 819,672 total deaths registered nationwide.

The uncomfortable question is this: With all that infrastructure, why do we keep getting sick?

After years working at the intersection of genomics, functional medicine, and personalized health, my answer is clear: we are treating symptoms, not the patient.

Diagnosed, Medicated, Still Sick

When a patient arrives with chronic fatigue, elevated cholesterol, or irregular cycles, the conventional system responds with a medication that relieves the symptom. It is logical, it is fast, and sometimes it is necessary. But it is not enough.

Those symptoms are branches. They are signals the body sends when something deeper is failing. Treating only the branches without investigating the roots is not preventive medicine, it is disease management.

The data confirms the systemic failure. According to ENSANUT 2022, the prevalence of overweight among Mexican adults reached 38.3% and obesity 36.9%, with abdominal obesity affecting 81% of the adult population. Meanwhile, the total prevalence of diabetes reached 18.3% of Mexican adults, with nearly 1 in 3 affected individuals unaware of their own diagnosis.

These are not isolated failures. They are the predictable outcome of a system that has never been designed to look beneath the surface.

The Six Roots of Chronic Disease

In our work at nutriADN, we have identified six biological root systems that, when disrupted, drive the majority of chronic conditions we see in clinical practice. Understanding them is the foundation of everything we do.

Root 1 — Vitamins and Minerals. Deficiencies in magnesium, zinc, vitamin D, B12, and omega-3 fatty acids silently impair cellular function, energy production, and immune response. Most people have no idea they are deficient.

Root 2 — Microbiota and Food Sensitivities. The gut is not just a digestive organ. It is the center of immune regulation, neurotransmitter production, and hormonal metabolism. Dysbiosis, SIBO, intestinal permeability, and undetected food intolerances are behind conditions ranging from bloating and migraines to anxiety and autoimmunity.

Root 3 — Environmental Toxicity. Heavy metals such as mercury and lead, along with BPA, pesticides, and phthalates, accumulate in the body over time and disrupt hormonal signaling, metabolic function, and neurological health. This is one of the most underdiagnosed root causes in Latin America.

Root 4 — Hormonal Balance. Thyroid dysfunction, cortisol dysregulation, estrogen dominance, and adrenal fatigue manifest as weight gain, hair loss, infertility, mood disorders, and metabolic slowdown. Hormones are the body's communication system — when they are off, everything is off.

Root 5 — Genetics and Metabolism. Each person processes nutrients, fats, carbohydrates, and medications differently based on their genetic profile. Nutrigenomics allows us to move beyond generic dietary advice and design interventions based on how your biology actually works.

Root 6 — Epigenetics and Longevity. Beyond the DNA sequence lies the layer that determines how genes are expressed. Biological age, methylation patterns, telomere length, and cellular inflammation define how fast we age and how resilient we are. This is the frontier of modern preventive medicine.

Advances in Genomics 

For years, personalized medicine was considered a niche tool reserved for oncology or rare genetic disorders. That perception is now fundamentally outdated.

When a person understands how their own body processes nutrients, responds to stress, metabolizes fats, or regulates hormones — behavior changes. Not because they were told to eat better or exercise more, but because the data makes the reason undeniable and personal. A generic recommendation is easy to ignore. Your own biology is not.

This is the core shift that individualized medicine produces: it moves people from passive patients following standard protocols to active participants in their own health. A patient who discovers through genomic testing that their body has a reduced ability to methylate B vitamins does not need motivation — they need information. Once they have it, the intervention becomes obvious, measurable, and sustainable.

The future of health is not a better pill. It is a deeper understanding of the individual taking it.

5. The RAÍCES Method
 

At nutriADN, we built the RAÍCES Method to translate this science into a clinical and commercial model that works in the Mexican context.

The process follows four stages. First, advanced diagnostics: patients undergo a curated battery of tests — genomic, functional, metabolic, and microbiome — designed to map all six root systems simultaneously. Second, clinical interpretation: results are analyzed not in isolation, but as an integrated biological portrait. Third, a personalized program: each patient receives a protocol that addresses their specific root imbalances — nutritional, lifestyle, and supplementation-based. Fourth, medical-grade nutraceuticals: our own line of supplements, formulated to clinical standards, supports the interventions identified in the program.

The result is not a generic wellness plan. It is a precision roadmap built from the patient's own biology.

What makes this meaningful at scale is the system behind it. We have designed RAÍCES to be replicable across our clinic network in Monterrey, Mexico City, Guadalajara, Puebla, and Tijuana, with consistent diagnostic protocols, clinical training, and outcome tracking. Beyond our physical locations, RAÍCES is also accessible through online consultations — extending the same clinical methodology to patients across Mexico who cannot or prefer not to visit a clinic in person. Diagnostic kits are delivered to their door, results are interpreted by our medical team, and personalized programs are built and followed up remotely. This hybrid model — physical clinics backed by a national digital reach — is what allows personalized medicine to move from a premium experience available to few, to a scalable standard of care available to many.

The Future of Health in Mexico

I started nutriADN in 2016 because I believe Mexico deserves a health system built on understanding, not just treatment. A system that asks why before it prescribes what. A system that sees the patient as a biological individual, not a diagnosis category.

The chronic disease burden in this country is not inevitable. It is the result of decades of treating branches while ignoring roots. The science to do better already exists. The technology is accessible. What has been missing is the will to integrate it into a coherent model of care — and the conviction to bring it to market at scale.

That conviction is being validated every day. More than 3,800 physicians across Mexico now trust nutriADN and incorporate our root-cause diagnostic model into their clinical practice. They are internists, gynecologists, nutritionists, and functional medicine specialists who have seen firsthand what happens when medicine stops chasing symptoms and starts investigating causes. Their confidence in this approach is the clearest signal that the medical community is ready for a new standard — and that Mexico is ready to build it.

That is what we are building. Not just a company, but a new standard for what health in Mexico can look like.

This is not about doing more of the same medicine. It is about doing fundamentally better medicine: one patient, one biological profile, at a time.

Gustavo Rodríguez Leal is the founder and CEO of nutriADN and fetalADN, companies focused on personalized medicine, genomics, and functional health in Mexico. He leads a clinical and commercial ecosystem integrating advanced diagnostics, personalized programs, and medical-grade nutraceuticals across multiple cities in the country.

Sources

1. INEGI — Estadísticas de Defunciones Registradas (EDR) 2024 Instituto Nacional de Estadística y Geografía. Estadísticas de Defunciones Registradas, enero–diciembre 2024. Comunicado de Prensa 117/25. Ciudad de México: INEGI, 2025. URL: https://www.inegi.org.mx/contenidos/saladeprensa/boletines/2025/edr/EDR2024_CP_ene-dic.pdf
2. ENSANUT 2022 — Obesity prevalence in Mexican adults Campos-Nonato I, Galván-Valencia Ó, Hernández-Barrera L, Oviedo-Solís C, Barquera S. Prevalencia de obesidad y factores de riesgo asociados en adultos mexicanos: resultados de la Ensanut 2022. Salud Pública de México. 2023;65(Supl 1):S238–S247. DOI: https://doi.org/10.21149/14809
3. ENSANUT 2022 — Diabetes and prediabetes prevalence Basto-Abreu A, López-Olmedo N, Rojas-Martínez R, et al. Prevalencia de prediabetes y diabetes en México: Ensanut 2022. Salud Pública de México. 2023;65(Supl 1):S163–S168. DOI: https://doi.org/10.21149/14832
4. ENSANUT 2023 — Type 2 diabetes update Basto-Abreu A et al. Prevalencia de diabetes tipo 2 y cascadas de tamizaje y atención en población adulta mexicana: Ensanut 2023. Salud Pública de México. 2024;66(4):528–537. URL: https://ensanut.insp.mx/encuestas/ensanutcontinua2023/
5. Global personalized medicine market size forecast to 2030 Grand View Research. Personalized Medicine Market Size, Share & Trends Analysis Report, 2024–2030. San Francisco: Grand View Research, 2024. URL: https://www.grandviewresearch.com/press-release/global-personalized-medicine-market
6. NCDs global mortality burden World Health Organization / McKinsey Health Institute, as cited in: Mexico Business News. Heart Disease, Diabetes Drive Mortality Rise in Mexico: INEGI. November 2025. URL: https://mexicobusiness.news/health/news/heart-disease-diabetes-drive-mortality-rise-mexico-inegi