About Healthfoodness · Meet Mariana

Science shaped the path. People shaped the purpose.

For more than two decades, Mariana Meza has worked across food science, clinical nutrition, research, education and functional medicine. Her international journey across Mexico, the United States and Spain shaped Healthfoodness and the Functional Answers™ Method.

PhD(C) MS RD CNS IFMCP CNP
Mariana Meza
Mariana Meza
PhD(C) · MS · RD · CNS · IFMCP · CNP
Founder, Healthfoodness · Clinical Nutrition & Functional Medicine
Education & Professional Credentials

Know who is behind your health guidance.

Nutrition advice is everywhere. Formal education, recognized professional credentials, clinical experience and continued scientific training help you understand the foundation behind the guidance you receive.

✓

Credentials matter when your health is personal.

Mariana's professional foundation combines university education, credentials in Mexico and the United States, advanced functional medicine certification, clinical practice and ongoing doctoral research.

PhD(C) · 2022–2027

Translational Medicine

PhD Candidate · CEU Cardenal Herrera University · Spain

MS · 2015

Clinical Nutrition

Master of Science · Instituto Nacional de Salud Pública · Mexico

RD · 2019

Registered Dietitian

Professional dietetics credential · United States

CNS · 2020

Certified Nutrition Specialist

Advanced professional credential in nutrition science

IFMCP · 2023

Functional Medicine Certified Practitioner

Institute for Functional Medicine · Certification pathway completed 2021–2023

CNP · 2008

Certified Nutrition Professional · Mexico

Colegio Mexicano de Nutriólogos

Education & Advanced Training
Universidad La Salle
Sam Houston State University
KADDI Dietetic Internship
Diabetes Education

Institutional and credentialing logos are displayed only to identify Mariana's education, training and professional credentials. Their display does not imply institutional endorsement of Healthfoodness.

Professional Licensure

Professional care across multiple U.S. jurisdictions.

Mariana's U.S. practice began with professional authorization in Texas and Florida and has expanded across multiple states, supporting private nutrition consultation in person and virtually where permitted.

In 2019, after earning the Registered Dietitian credential in the United States, Mariana established professional practice authorization in Texas and Florida. As Healthfoodness expanded, she continued extending her professional reach into additional states.
Florida
Texas
Nevada
Illinois
Georgia
Pennsylvania
Massachusetts
New Hampshire
South Carolina
Maryland
North Carolina
Louisiana
Rhode Island
South Dakota
California
Arizona
Colorado
Michigan
Virginia
Mexico
Spain
Professional licenses, authorizations and practice eligibility are subject to each jurisdiction's current laws, renewal requirements and scope-of-practice rules.
Mariana's Journey

A career shaped across countries, disciplines and decades.

Healthfoodness did not begin with an app or a brand. It grew from a professional journey that moved from medicine to food science, from food to clinical nutrition, and eventually from individual care to research, functional medicine and digital health.

1996
The first decision

Pre-Medical Studies

Universidad Anáhuac · Mexico

Mariana began her academic path with pre-medical studies. During this period, she made an important personal decision: she wanted to remain deeply connected to science while choosing a professional path that would also allow her to give priority to family life.

2000
Science came first

Food Chemistry

Universidad La Salle · Mexico

Mariana graduated in Food Chemistry, building a foundation in chemistry, formulation, processing, quality and the science behind food. That scientific perspective would later become an important part of how she approaches nutrition and human health.

2000–2002
Inside the food system

Food Industry

Quality Assurance · Product Formulation

Working in the food industry gave Mariana first-hand experience with how foods are developed, formulated and produced. Understanding food from the inside out gave her a perspective that would later distinguish her clinical work.

2004
From food to human nutrition

Advanced Studies in Nutrition

Universidad Iberoamericana · Mexico

Her curiosity began moving from what is inside food to what food does inside the human body. Studies in nutrition at Universidad Iberoamericana became the bridge toward a new professional direction.

2004–2008
Nutrition becomes the path

Clinical Nutrition

Escuela de Dietética y Nutrición · Mexico

Mariana completed formal professional studies in nutrition and graduated in 2008. This marked the transition from food science into direct clinical work with people. She also obtained her professional nutrition certification in Mexico.

2008–2016
Clinical practice

Private Practice · Mexico

Clinical nutrition · Chronic disease · Behavior change

Years of working directly with patients reinforced an important lesson: people with similar diagnoses can have very different histories, behaviors, barriers and nutritional needs.

2009
Chronic disease education

Diabetes Educator

Nutrition education · Self-management · Prevention

Diabetes education strengthened Mariana's interest in chronic disease prevention, patient education and the practical behaviors people need to manage their health outside the clinic.

2013–2015
Deeper clinical training

Master of Science in Clinical Nutrition

Instituto Nacional de Salud Pública · Mexico

Graduate study strengthened the scientific and evidence-based foundation of Mariana's clinical practice and expanded her ability to evaluate nutrition through both a patient-care and research lens.

2016–2018
Crossing borders

U.S. Dietetics Education

Sam Houston State University · Texas

After moving to Houston, Mariana continued her professional education within the U.S. dietetics system. She completed the academic requirements needed to continue building her career as a dietitian in the United States.

2018–2019
Supervised practice

Dietetic Internship

KADDI · United States

Mariana completed the supervised practice requirements of the U.S. dietetics pathway, with experience across clinical, community, foodservice and professional settings.

2019
Professional credentialing

Registered Dietitian · United States

RD credential · Texas & Florida

Mariana earned the Registered Dietitian credential in the United States and established professional practice authorization in Texas and Florida, adding another healthcare system to her international clinical experience.

2019–2021
Research & community health

University of Houston

Nutrition · Physical activity · Mindfulness

Working with community health and research programs reinforced an idea that would later become central to Healthfoodness: nutrition never works in isolation. Movement, behavior, stress and the environment also matter.

2020
Advanced nutrition credential

Certified Nutrition Specialist

CNS

Mariana earned the Certified Nutrition Specialist credential, adding advanced nutrition science training to her clinical, research and dietetics background.

2021
Healthfoodness in the United States

Private Practice · The Woodlands

Texas · United States

Mariana established her U.S. private practice under Healthfoodness, bringing together clinical nutrition, education and an increasingly integrative approach to health.

2021–2023
Looking deeper

Functional Medicine Certification

Institute for Functional Medicine · IFMCP

From 2021 to 2023, Mariana completed the Institute for Functional Medicine certification pathway and its required modules. The training expanded her clinical framework beyond nutrition alone to include interconnected influences such as gastrointestinal health, sleep, stress, movement, environment and lifestyle.

Certified as an IFM Certified Practitioner in 2023.

2022–2027
From research to real life

PhD in Translational Medicine

CEU Cardenal Herrera University · Spain

Mariana began her doctoral work in Translational Medicine in 2022. Her research includes participants in Spain, Mexico and the United States and explores how nutrition and lifestyle interventions can be translated from scientific evidence into practical strategies for real people.

Expected completion: 2027.

2024
From clinical experience to digital health

Healthfoodness App Development

The Functional Answers™ Method

Mariana began developing the digital platform that would become Healthfoodness App. During this process, years of clinical practice, research, advanced nutrition and functional medicine were organized into the Functional Answers™ Method.

2025
A new clinical and research chapter

Miami & GLP-1 Clinical Research

Miami · Florida

Mariana returned to the United States and established herself in Miami, where she expanded her involvement in clinical research, including work related to GLP-1 therapies, while continuing professional nutrition practice.

2025–2026
Expanding access

Multi-State Professional Licensure

Professional nutrition services across multiple U.S. jurisdictions

As Healthfoodness expanded beyond a single location, Mariana continued obtaining professional authorization across additional U.S. states, increasing access to individualized nutrition services through virtual and in-person consultation where permitted.

SEP
2026
Clinical experience becomes digital

Healthfoodness App

Personalized Nutrition · Digital Health · Science

The first version of Healthfoodness App brings Mariana's clinical framework into a digital environment, combining personalized nutrition, daily health guidance, tracking and the Functional Answers™ Method.

JAN
2027
The next chapter

Healthfoodness · Coral Gables

Planned private practice office · Miami, Florida

In response to continued demand from clients who want to work with Mariana directly, Healthfoodness plans to open a private consultation office in Coral Gables while continuing virtual professional services where legally permitted.

Food chemistry taught her to understand food. Clinical nutrition taught her to understand people. Research taught her to keep asking questions. Functional medicine taught her to look for connections. Healthfoodness brings those lessons together.

Translational Medicine

Research that crosses borders.

Mariana's doctoral work is designed around an essential question: how can scientific knowledge become something useful in the lives of real people?

Spain
Mexico
United States
01

Chronic systemic inflammation

The research explores lifestyle-related factors connected with chronic systemic inflammation and how modifiable behaviors can be studied in real-world settings.

02

Women's health

A major focus is the peri-menopause and menopause transition, a stage in which metabolic, inflammatory, sleep, body composition and lifestyle factors can intersect.

03

International lifestyle intervention

The doctoral project evaluates a structured lifestyle intervention with participants in Spain, Mexico and the United States, connecting research methodology with practical nutrition and health behaviors.

Healthfoodness
The Functional Answers™ Method

The method came from the journey.

Years of clinical practice, research, advanced nutrition and functional medicine kept pointing toward the same principle: health is rarely explained by one isolated behavior. The Functional Answers™ Method organizes seven connected areas that can be observed and worked on together.

Attitude Nutrition Sleep Water Exercise Resilience Stool

Today, this framework connects Healthfoodness App with professional nutrition support and deeper functional medicine nutrition services.

Our Purpose
Help People Live Longer, Healthier Lives.
01

Personalized

Your history, symptoms, lifestyle, preferences and goals matter. Health guidance should adapt to the person rather than force every person into the same plan.

02

Connected

Nutrition does not exist separately from sleep, movement, hydration, stress, resilience, digestion and the environment around you.

03

Evidence-informed

Science guides the process. Clinical judgment and real life determine how that knowledge is translated into practical actions a person can actually use.

Private Consultation

Work directly with Mariana.

For people who need individualized professional nutrition care beyond the digital experience, Healthfoodness offers private consultation built around your history, symptoms, goals and health context.

Private professional services are provided through Healthfoodness LLC and are separate from ordinary use of Healthfoodness App. Services are provided only in jurisdictions where professionally and legally permitted.