Our team is comprised of Candice-Kerstin Castle and Thirza Jonkers.
Candice is a
- Functional Medicine and Integrative Health Practitioner with a focus on Oncology and Autoimmunity.
- Metabolic Terrain Advocate Practitioner in training (A Metabolic Terrain Advocate is a professional trained to support individuals, particularly cancer patients, by implementing the Metabolic Approach to Cancer. This approach emphasizes understanding and addressing the unique biological and environmental factors—collectively referred to as the “terrain”—that contribute to a person’s health and disease processes.)
Candice Castle Bio
Candice Castle is an Integrative and Functional Medicine Practitioner, Metabolic Terrain Advocate, and passionate healer whose primary goal is to help YOU reclaim your health, prolong your life, and regain your quality of life. For those who have faced chronic illness, “getting your life back” is more than just feeling better—it’s about restoring vitality, hope, and purpose. Having personally battled autoimmunity and chronic health conditions, and witnessing her mother’s struggles, Candice deeply understands the profound physical, emotional, and financial toll these conditions take on individuals and families.
Cancel Cancer and its sister venture, Nature Me New, were born out of Candice’s personal journey of healing and her commitment to sharing the tools and knowledge that transformed her life. She integrates the Metabolic Approach to Cancer, a groundbreaking method focused on addressing the body’s “terrain”—the unique biological and environmental factors that influence the onset and progression of cancer. This approach emphasizes not just managing disease but enhancing overall health, extending life expectancy, and improving quality of life by addressing the root causes of illness.
The Metabolic Approach to Cancer
The Metabolic Approach to Cancer, as championed by the Metabolic Terrain Institute of Health, is a revolutionary framework that sees cancer not as an isolated disease but as a symptom of imbalances in the body’s terrain. By addressing these imbalances, this approach empowers individuals to take proactive steps toward health, focusing on:
Optimizing blood sugar regulation to limit cancer growth
Reducing inflammation and oxidative stress to support cellular health
Enhancing immune system function for better disease resistance
Balancing hormones and managing stress to stabilize internal systems
Detoxifying the body to eliminate environmental toxins that contribute to disease
This holistic, terrain-focused method is designed to work alongside conventional treatments, enhancing their efficacy while minimizing side effects. By targeting the underlying contributors to cancer, this approach not only helps slow disease progression but also promotes vitality and resilience, giving patients the opportunity to live longer, healthier lives.
Education and Certifications
Candice’s expertise in the Metabolic Approach to Cancer and integrative healing is backed by extensive education and certifications:
- Institute of Integrative Medicine (Pretoria, South Africa)
- Metabolic Terrain Advocate Course from the Metabolic Terrain Institute of Health (Metabolic Oncology)
- The Nutrigenomics Institute (Spain)
- Apollo Health (USA)
- DNAlysis Biotechnology, a division of Nordic Labs (Denmark)
She is a:
- Certified DNAlysis Practitioner
- Certified Re2.0 Practitioner
- Integrative Medicine Practitioner
- Certified Biometrix Practitioner
- Wellme.ai Practitioner, supporting patients worldwide
Candice continuously updates her knowledge, staying at the cutting edge of research to offer her patients the most effective strategies for healing and living well.
Thirza is a
- BSc Food Management (Nutrition) – University of Pretoria, with distinction
- DNAlysis Accredited Practitioner
Thirza Jonkers Bio
Thirza Jonkers completed her BSc degree in Food Management, specializing in Nutrition, at the University of Pretoria. During her studies, she discovered that nutrition cannot be reduced to a one-size-fits-all approach. Each individual has unique circumstances, requiring a personalized path to achieve true well-being and optimal health.
Recognizing how closely nutrition is linked to disease, Thirza’s mission is to help those who have searched endlessly for answers to uncover and address the root cause of their challenges. She believes in restoring health through the natural resources God has graciously provided, rather than merely managing symptoms.
Working alongside Candice, Thirza continues to grow in her understanding and application of practical, science-backed solutions. Together, they guide clients toward approaches that support the body’s ability to heal, rather than mask the underlying issues.
Thirza believes that ultimate healing comes from God, who has equipped His people with the knowledge and tools to support and bring hope to those seeking restoration and health.
Integrative vs. Conventional Medicine
While medical doctors excel at emergency interventions and life-saving treatments, their tools are often limited to managing symptoms for chronic illnesses and cancer. The Metabolic Approach, by contrast, seeks to uncover and address the root causes of disease as well as by correcting the body’s Terrain. By analyzing:
- Genetics and personalized biology
- The gut microbiome
- Hormonal and adrenal function
- Detoxification pathways in the liver and kidneys
- Inflammation and immune system function
Candice tailors her care to restore balance and support the body’s natural ability to heal. This approach does not replace conventional treatments but complements them, improving treatment outcomes, reducing side effects, and helping patients thrive.
Collaboration and Empowerment
Candice works collaboratively with open-minded medical doctors and oncologists, ensuring that her patients receive comprehensive, integrative care. Her goal is not just to treat disease but to enhance every aspect of her patients’ lives—physically, emotionally, and spiritually.
A Journey to Healing
Candice and Thirza invite you to explore her personal testimony and discover the transformative power of the Metabolic Approach to Cancer. Whether you are managing cancer, chronic illness, or seeking to optimize your overall wellness, she is committed to guiding you toward a life filled with vitality and hope.
With Candice or Thirza as your advocate, you can take control of your health, improve your quality of life, and extend your journey with confidence and strength. Let’s redefine what’s possible for your health, together.