Accredited Online & In-Person
Naturopathy, Nutrition & Herbal Medicine courses
Established in 2007
Step into a rich tradition of pure naturopathy and preventative medicine at the School of Natural Medicine. We bridge the gap between academic excellence and clinical mastery, offering industry-leading online courses paired with hands-on Immersion Trainings in Lake Worth Beach, Florida, and Cheltenham, UK. Whether you are here to heal yourself, launch a career, or scale an existing practice, your path is ready:
- Self-Education & Personal Healing: Access our complete master curriculum texts to study independently at your own pace for deep personal growth, self-care, and family wellness.
- Accredited Professional Training: Launch a certified career with fully accredited online diploma programs, featuring individual, one-on-one mentorship from experienced experts.
- Advanced Clinical Practice: Deepen an existing health practice and achieve master-level credentials through our advanced tracks and live, hands-on clinical immersions.
Master the Art of Healing:
Choose Your Pathway: Three Levels of Study
Launch your career in natural medicine or deepen your personal wellness journey with a curriculum that balances rigorous academic depth with the flexibility of modern online learning. Our online options are conscientiously designed to meet you exactly where you are. We believe that world-class education should be both accessible and in-depth, providing a comprehensive foundation in holistic health without compromising on clinical standards.
Pathway 1 & 2:
Online Courses & Professional Diplomas
Flexible Learning for Personal Growth or Career Launching
Master the core principles of natural medicine from anywhere in the world. Our premier online courses offer a deeply immersive digital education across six foundational disciplines—including Herbal Medicine, Iridology, Healing Diets, Quantum Botanicals, Naturopathy and Natural Physician. To completely honor your schedule, budget, and personal goals, this pathway is divided into two distinct learning models:
- The Independent Self-Study Pathway: Gain immediate, lifetime access to our comprehensive master curriculum textbooks. Perfect for health enthusiasts, seekers, and conscious families who want authentic knowledge for personal healing and self-care, entirely at their own pace without deadlines or assignments.
- The Mentored Professional Track: Turn your passion into an accredited career. This path includes rigorous assignment modules, dedicated one-on-one professional mentorship from expert practitioners, and an 18-to-48-month safety-net timeline designed to prepare you for global board certification and a thriving clinical practice.
Pathway 3:
Advanced Diplomas & Clinical Immersions
Master-Level Credentials, Hands-On Training & Global Recognition
For practitioners ready to scale their existing skills, or dedicated students aiming for the highest tier of natural medicine education, our Advanced Pathway bridges the gap between digital theory and real-world clinical mastery. This track expands your credentials into our prestigious Naturopathic Nutrition, Master Herbalist, Master Iridologist, Naturopathy and Natural Physician programs.
- Hands-On Immersion Training: Step into our live, transformative clinical intensives hosted in Lake Worth Beach, Florida, and Cheltenham, UK. Here, you will refine your diagnostic and program creation arts under direct, expert supervision.
- A Scalable Educational Journey: Your education grows as you do. All credits and tuition earned in our foundational Online Diploma tracks apply directly toward your Advanced status, allowing you to seamlessly elevate your qualifications, expand your clinical scope, and achieve advanced global board accreditations.
- 2025: Bonny expands School of Natural Medicine to Lake Worth Beach, Florida
- 2025: Bonny expands School of Natural Medicine to Lake Worth Beach, Florida
- 2007: Bonny founds School of Natural Medicine in Devon, UK
- 2007: Bonny founds School of Natural Medicine in Devon, UK
- 1988: Farida founded School of Natural Medicine International in Boulder, Colorado and Bonny begins her nearly 40 year journey as teacher of Naturopathy and Herbal Medicine.
- 1988: Farida founded PureHealth School of Natural Medicine in Boulder, Colorado and Bonny begins her nearly 40 year journey as teacher of Naturopathy and Herbal Medicine .
- 1977: Farida Sharan founded British School of Iridology & School of Natural Medicine in Cambridge, England
- 1977: Farida Sharan founded Purehealth School of Natural Medicine in Cambridge, England.
Originally founded on the groundbreaking "Heal Thyself" philosophy of Farida Sharan, ND, and the pioneering legacy of Dr. John Christopher, the school’s mission continues today under the leadership of Farida's daughter, Bonny Casel.
As the founder and director of the School of Natural Medicine, Bonny has evolved these traditional teachings into a world-class online learning platform with the option of in-person training in the UK and US. By blending deep ancestral knowledge with modern accessibility, she ensures that every diploma and advanced diploma student receives the same high standard of individualized mentorship that has defined our school for nearly 50 years.
The School of Natural Medicine is more than an institution; it is a lineage of wisdom passed down through generations of dedicated healers.
A Legacy of Natural Healing
A Legacy of
Natural Healing
School Founder: Bonny Casel ND, MAMH, MBSLM
"Our industry-leading courses – unique in their individually mentored approach – are created to empower a future generation of naturopaths, herbalists and nutritionists to practice with absolute confidence, knowledge, integrity and clarity."
Ian Gibbon HMC
Herbal Medicine Consultant Diploma Craduate
"I have thoroughly enjoyed the course and it will say with me for life as a platform for a healthier life for myself and my life, and also a career which I love and brings me energy. Bonny is extremely patient and knowledgeable. She doesn't simply deliver a curriculum, she ensures the understanding is there and delivers it in a way which you can begin to love it instead of it being a burden of studying. I would thoroughly recommend this school and course to anybody thinking about a career or simply wanting to get health.
Becky Gilman HDC
Healing Diets Coach Graduate & Natural Physician Student
I just want to say I am enjoying the course IMMENSELY and it has already shaped my life dramatically. It doesn't feel like work! I can feel myself becoming more and more inspired with every lesson. Health is becoming an obsession and my love and respect for it is increasing daily, thank you so much for your inspirational lessons!
Taran Basra HMC
Herbal Medicine Consultant Diploma Graduate
I feel so grateful for having such a kind, supportive tutor like Bonny. She has been nothing but informative, empathetic and is just an absolute fountain of knowledge and wisdom. This course has given me so much insight into not only healing myself, but also the knowledge on how to support others in bringing their body into balance with herbs and plants, as well as general holistic guidance. I cannot recommend this course enough for those who feel a soul connection to healing, holistic wellness and nature! The school will absolutely support you with stepping into your purpose.
