The Practice Team
Great to have you here! We are your health team. You are our focus, and we dedicate all our knowledge and experience to supporting you on your journey to lasting health.
Bastian Hölscher
Nutrition and health enthusiast, Specialist in General Medicine
For over 17 years, I have been guiding people on their path to health.
In my private practice, I focus on functional medicine and nutritional medicine—a passion born from my own experience as an irritable bowel syndrome patient. Together, we find solutions that truly fit you.If you’re ready to take charge of your health, I’m here to support you!More about Bastian
Katarzyna (Kasia) Hrecka, PhD
PhD in Biochemistry & Certified Health Coach
Kasia combines cutting-edge research with practical health consulting: She has conducted research at renowned institutions such as Cold Spring Harbor Laboratory and Case Western Reserve University (focus: HIV and the immune system) and has also served as Head of Medical Science and Research in the USA. At the same time, she trained as a Certified Health Coach at the Institute for Integrative Nutrition (IIN) and the School of Applied Functional Medicine (SAFM). For seven years, Kasia has been part of the Clinical Education Team at SAFM, where she shares her extensive functional medicine expertise with students. Here in our practice, she enriches us through thorough literature research and co-creation of individualized treatment plans—so you benefit from the latest scientific findings and Kasia’s exceptional knowledge.
Sonja Cibulka
Medical Assistant
As a trained medical assistant, Sonja is the main point of contact on the phone and often the first person you reach out to with any questions about our practice. Whether it’s scheduling appointments, email inquiries, or technical matters—she always keeps an overview and ensures everything runs smoothly. She competently assists you with any concern.
