
Diana Siepmann
Functional Medicine Consultant, AFMC certified
Founder of The House of Functional Medicine, Personalised Precision Medicine Educator for Heath Care Practitioners, and
Student Mentor at The School of Applied Functional Medicine
Women’s health – my passion
I show women with chronic health problems how to rebuild their health and lead the life they love. Do you suffer from fatigue, brain fog, unexplained weight gain or autoimmune conditions? Do your lab tests show normal results or are you still not feeling great despite your medication? I help you dig into the root cause of your issue, design an individualised health rebuilding programme and coach you in creating new, healthy habits that last.
You’re unique, therefore your approach to healing should be too. Your story, how you feel and how you experience change will guide us every step along the way. Functional medicine provides the framework that makes this individualised, partnership approach very effective.
If you would like more clarity on your situation and what’s possible for you, don’t hesitate to reach out to me. Just click the button below to schedule a free online consultation or contact me directly.
From Silence to Strength:
Join the (Peri)Menopause Conversation
Women often come to me when they’ve tried everything — different doctors, treatments, even HRT — and still don’t feel like themselves. I specialise in uncovering the why behind stubborn symptoms, using a functional medicine approach that connects hormones, stress, thyroid, gut health, neurotransmitters, genetics, and lifestyle choices.
Tools like the DUTCH test (Dried Urine Test for Comprehensive Hormones) and genetic testing are especially powerful in revealing how your hormones are really functioning, and they often provide answers that standard blood tests miss.
As both a practitioner and an educator for doctors and healthcare professionals in functional and genetic testing, I bring science, strategy, and clarity to a stage of life too often clouded by stigma and guesswork.
My mission is to change that — to replace confusion with awareness, silence with education, and isolation with empowerment. Whether you’re considering HRT, already on it but not thriving, or just discovering that your symptoms may be menopause-related, you belong in this conversation.
That’s why I created the (Peri)Menopause Café on Zoom and the (Peri)Menopause Circle on WhatsApp — safe spaces to connect, learn, share, and find personalised strategies that help you feel like yourself again.
Together, we can move through this transition with knowledge, strength, and confidence.
I was interviewed on Suzanne Rethans’ podcast “We zijn toch niet gek”. In our conversation, I share why there is no one-size-fits-all dose of estrogen — too much can create symptoms just as much as too little, especially when gut health or detoxification aren’t optimal.
My key message: test, don’t guess — especially if you’re not thriving on your current approach.
Vanessa’s journey to health
Vanessa felt tired getting up in the mornings, her energy levels were very low and she was catching one cold after another. After seeing three doctor’s and her own plea for a complete checkup, Vanessa was diagnosed with Hashimoto’s thyroiditis, a common cause for Hypothyroidism. Yet, she had Hyperthyroidism symptoms and no explanation on what Hashimoto’s actually meant. The advice of two nutritionists left her more confused than ever. Vanessa kept looking for answers. She can now sleep much better, wakes up feeling refreshed, her energy levels are up again and she does not fall sick anymore. Listen to her inspiring story on her way to recovery.
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