Optimise your health and wellbeing through Functional Medicine approach.

Evidence-Based Medicine (EBM)

Functional Medicine

Nutritional Therapy

Conventional Medicine when appropriate


Our approach is patient-centred, root-cause focused, and evidence-based, designed to help you better understand your body, recognise your symptoms, and take confident ownership of your long-term health.

We tailor health to your needs.

Available in person or online worldwide

(in both Polish and English)

Your Personalised Health Care Plan

  • A deep dive into your health history, nutrition, lifestyle, symptoms and current concerns - viewed through a functional medicine lens. We look beyond symptoms to uncover root cause particularly for individuals experiencing ongoing, unexplained, or complex health concerns.

  • We partner with private laboratories to provide advanced testing and comprehensive panels. Your test results and current medical records are reviewed in depth alongside your health history, symptoms, and completed medical questionnaires to develop a safe, effective, evidence-based care plan.

    • DUTCH Test: An advanced test that measures sex hormones, adrenal function, and the body's stress response.

    • Comprehensive Stool Test: Assesses gut bacteria, intestinal health, parasites, digestive function, and inflammation.

    • Organic Acids Test (OAT): A urine test that evaluates cellular energy production, nutrient status, metabolic function, and toxin exposure.

    • Food Sensitivity Panels: Blood tests that identify hidden immune reactions to foods that may contribute to chronic inflammation.

    • Micronutrient Panel: Blood or urine tests that measure vitamin, mineral, antioxidant, and other essential nutrient levels.

    • SIBO Breath Test: Measures hydrogen and methane gases to detect bacterial overgrowth in the small intestine.

    • And other specialized functional medicine tests, as needed.

  • We believe in integrative care. Where appropriate, we integrate conventional treatments, working alongside medical doctors and specialists to achieve the most effective outcomes.

    Hanna and Dr. Zosik, collaborate closely on complex cases requiring medical supervision to ensure the highest standard of patient-centred care. Depending on your individual needs, your care may also include specialist consultations, ultrasound scans, and relevant diagnostic testing.

  • Your personalised health protocol is designed around your unique symptoms, health history, lifestyle, goals, and functional testing results. Using a functional and integrative medicine approach, we combine targeted nutraceuticals and high-quality, evidence-based supplementation with personalised nutrition, lifestyle, and therapeutic interventions to address root causes, support the body as a whole, and promote long-term, sustainable health outcomes.

    Targeted nutraceuticals are biologically active nourishing compounds that represent a hybrid of nutrition and pharmaceuticals and have the potential to support optimal health and provide a range of health benefits.

  • Clinically guided use of medications and therapeutic interventions when appropriate, including bioidentical hormone replacement therapy (BHRT) and other evidence-informed treatment options.

    Our team completed specialised training through the Marion Gluck Training Academy and incorporates principles of the Marion Gluck Method of Bioidentical Hormone Replacement Therapy (BHRT).

  • We recognise the mind-body connection and create a safe, empathetic space where you feel supported, heard, and empowered.

The Clinical Team

  • Hanna Kus

    Functional Medicine Practitioner (IFM) & Registered Nutritional Therapist BScION (mBANT, CNHC)

    Women’s Health Specialist

    • Hormone Functional Medicine Advanced Practice Module®

    • Gastrointestinal Functional Medicine Advanced Practice Module®

    • Immune Functional Medicine Advanced Practice Modules® (APM)

    • Environmental Health Advanced Practice Modules® (APM)

    • Applying Functional Medicine in Clinical Practice (AFMCP)™

  • MD Stanisław Zosik | Gynaecology & Obstetrics

Stanisław Zosik Specialised Clinic

Areas of Expertise

  • Conditions and Symptoms Related to Hormonal Imbalances

    PCOS/PMOS, Endometriosis , Adenomyosis, Hyperandrogenism, Hyperoestrogenism, uterine fibroids, ovarian cysts, pelvic inflammatory disease (PID), dysmenorrhea amenorrhea, PMS, PMDD, sexually transmitted infections (STIs), recurrent urinary tract infections (UTIs), abnormal uterine bleeding, vaginal and cervical microbiome imbalances, vulvovaginitis, cervical dysplasia, infertility (including unexplained infertility), hair loss

    *Associated concerns may also include hormonal acne and skin conditions, migraines, weight fluctuations, persistent gastrointestinal symptoms, and mild mood disturbances associated with hormonal imbalance.

    Preventative Women’s Health

    Proactive care focused on hormonal wellbeing, breast health, early risk assessment, and long-term health.

  • Thyroid Health

    Overactive & Underactive Thyroid Function, Sub-Optimal Thyroid Function, Autoimmune Thyroid Conditions (including Hashimoto’s & Graves’ Disease)

    Adrenal Health

    Adrenal Dysfunction

    HPA axis dysregulation (including chronic fatigue and sleep disturbances), hair loss

  • IBS, inflammatory bowel conditions (IBD), microbiome imbalances/gut dysbiosis (SIBO, IMO, etc.) gastrointestinal infections (bacterial, parasitic, fungal, etc.), leaky gut syndrome (intestinal permeability), food intolerances and sensitivities, GERD, bloating or changes in bowel movements, and other unexplained digestive symptoms.

    Mycotoxins and Heavy Metals

    Liver & Gallbladder (GB) Conditions, CIRS

  • Metabolic Syndrome, insulin resistance - Involves blood sugar regulation, cholesterol and triglyceride balance, blood pressure control, and weight management.

  • Hashimoto’s thyroiditis, Graves’ disease, Lupus, Rheumatoid arthritis, Psoriasis and psoriatic arthritis, Inflammatory bowel diseases (Crohn’s disease, ulcerative colitis), Celiac disease, Allergies and asthma, Atopic dermatitis/ Eczema, Mast Cell Activation Syndrome (MCAS), EBV infection or frequent infections, Long-COVID, joint pain, musculoskeletal symptoms, Endometriosis, Low grade systemic inflammation, other chronic inflammatory conditions

  • Supporting brain health, concentration, mood stability, cognitive decline, quality sleep, and balanced stress resilience.

    Preventive Approaches to Cognitive Decline, Alzheimer’s Disease & Dementia

    Exploring patterns of HPA axis dysregulation, including persistent fatigue, disrupted sleep, and challenges with stress adaptation.

  • Supporting energy, vitality, healthy ageing, and long-term health, with a focus on reducing risks linked to chronic disease.

  • Gum inflammation, bleeding, dry mouth, and increased susceptibility to oral infections can reflect underlying systemic imbalances, including oral microbiome disruption, chronic inflammation, immune dysfunction, and nutrient deficiencies.

  • Acne, eczema, rosacea, psoriasis, dermatitis, chronic urticaria (hives), hair loss, Histamine rash / Mast Cell Activation Syndrome (MCAS), other skin symptoms.

  • Personalised, evidence-informed care supporting hormonal health, fertility, preconception planning, maternal wellbeing, and healthy fetal development from conception through pregnancy.

  • Personalised care to support hormonal transitions, symptom management, and long-term wellbeing, including tailored bioidentical hormone replacement therapy (BHRT), where appropriate.

    *Our team completed specialised training through the Marion Gluck Training Academy and incorporates principles of the Marion Gluck Method of Bioidentical Hormone Replacement Therapy (BHRT).

Our Services

  • For those seeking expert guidance, answers and a clear plan forward.

    Includes:

    • 90-minute comprehensive initial consultation

    • Comprehensive review of health history, symptoms, lifestyle, nutrition, blood work, and medical records

    • Health assessment and root cause analysis

    • Personalised healthcare plan (targeted nutrition, lifestyle and supplement & nutraceuticals recommendations)

    • Written action plan

    • 1 monthly check-in appointment (up to 30min)

    • Email support between appointments

    • 10% off all recommended practitioner-grade supplements

    Ideal for: gaining clarity, preventative health, early symptoms, or creating a roadmap for your health journey

    Prices start from £395 /1780pln

    *If you decide to continue beyond the initial 4 weeks, ongoing 4-week programmes are available from £350 / 1580pln

    Advanced laboratory testing, specialist referrals, prescriptions and supplements are not included and are recommended only where clinically appropriate.

  • For those ready to address root causes and build sustainable health habits.

    Includes:

    • 90-minute comprehensive initial consultation

    • Comprehensive review of health history, symptoms, lifestyle, nutrition, blood work, and medical records

    • Comprehensive health assessment and root cause analysis

    • Personalised functional phased root-cause healthcare plan

    • Advanced testing recommendations and interpretation (where appropriate)

    • Highly personalised, targeted supplements nutrition, lifestyle and supplement & nutraceuticals protocols

    • 2 monthly check-ins (45 minutes each) + 1 final summary session (up to 30 minutes)

    • Ongoing plan adjustments based on progress

    • Email support between appointments

    • Dedicated practitioner's support and continuity of care

    • 10% off all recommended practitioner-grade supplements

    Ideal for: complex cases; hormonal imbalances, gastro intestinal concerns , thyroid health, skin issues, fatigue and blood sugar regulation, perimenopausal transition, pregnancy, pre- and postnatal care

    Prices start from £995 /4780pln

    We offer flexible instalment plans so you can invest in your health with manageable monthly payments.

    Advanced laboratory testing, specialist referrals, prescriptions and supplements are not included and are recommended only where clinically appropriate.

  • For deeper healing, complex health concerns and long-term change.

    Includes:

    • 90-minute comprehensive initial consultation

    • Comprehensive review of health history, symptoms, lifestyle, nutrition, blood work, and medical records

    • Comprehensive health assessment and root cause analysis

    • Personalised functional phased , root-cause healthcare plan

    • Advanced testing recommendations and interpretation

    • Highly personalised, targeted nutrition, lifestyle and supplement & nutraceuticals protocols

    • 5 monthly check-ins (45 minutes each) + 1 final summary session (up to 30 minutes)

    • Continuous monitoring and ongoing refinement of your personalised root-cause health plan

    • Dedicated practitioner's support and continuity of care

    • Expedited support between appointments (email)

    • 10% off all recommended practitioner-grade supplements

    Ideal for: complex and chronic health concerns, hormone optimisation, autoimmune conditions, fertility preparation and support, persistent fatigue, digestive dysfunction, inflammatory conditions, PCOS/PMDD, endometriosis, pregnancy, pre- and postnatal care, preventative healthcare, and longevity

    Prices start from £1,895/ 8530zl

    We offer flexible instalment plans so you can invest in your health with manageable monthly payments.

    Advanced laboratory testing, specialist referrals, prescriptions and supplements are not included and are recommended only where clinically appropriate.

‘Real People, Real Stories’

‘REAL PEOPLE, REAL STORIES'

  • "...Hanna’s empathetic and understanding approach, combined with her drive to uncover the root causes of health issues, is rare and truly one of a kind. She sees connections that others miss and is dedicated to helping you feel better and like yourself again..."

    — Paula Mazik

    (HPA axis, hormonal health, acne)

  • “…After years of feeling dismissed by healthcare professionals, Hanna was the first person who truly listened and saw me as a whole person. Through comprehensive testing and a personalised protocol, she helped me finally understand what was happening in my body. For the first time in years, I’m no longer in constant pain, my gut health has improved, and I feel like myself again…”

    — Leila Makarova

    (PMOS, Endometriosis, metabolic health, HPA axis regulation, inflammation, acne, gastrointestinal health)

  • “… Hanna’s knowledge and kindness made me feel comfortable discussing my symptoms in a completely non-judgemental space. I felt heard and understood for the first time in a long while. Through a highly personalised protocol, I saw visible improvements quickly and finally felt like myself again…”

    — Honorine Peter

    (PMOS, metabolic health, HPA axis regulation, and gastrointestinal health)

  • "...Under Hanna’s care, I regained a healthy weight, relieved my symptoms, and uncovered the root cause of my health issues. We ran comprehensive advanced testing, and her expertise and knowledge are truly extraordinary. Hanna’s care has been a lifeline she helped me reconnect with my body and created both physical and inner transformation..."

    — Martyna Cebula

    (HPA axis regulation, gut health, pain management, histamine balance, inflammation, hormonal health)

  • “…Hanna helped me uncover the deeper roots of my Hashimoto’s through comprehensive hormonal testing and a detailed investigation into my health history. She opened my eyes to the power of nutrition and taught me how to use food as a tool for healing. I’ve never felt so supported or so understood in my health journey…”

    —Kirsten Mackie

    (Hashimoto’s, hormonal health, gut health, inflammation, acne)

  • "..Hanna used advanced testing such as the OAT and DUTCH to gain a precise understanding of my body’s needs. Her data-driven, personalised approach has been invaluable in helping me navigate my health challenges.I feel far more confident knowing I have a clear, tailored path to follow..."

    — Sophie Trotzig

    (hormonal health, gut health, HPA axis regulation, detoxification)

  • “…During my pregnancy, Hanna guided me through the overwhelming world of supplements and nutrition with clarity and expertise. She listened carefully to my concerns, tailored recommendations to my needs, and regularly checked in to adjust my plan. She truly felt like my guardian angel during that time…”

    — Francesa Jones

    (fertility, pregnancy, postpartum)

  • “…Hanna took a holistic approach to my health and created a personalised nutrition and supplementation plan tailored to my needs. She guided me through every stage of the healing process with exceptional empathy and care. Thanks to our work together, I uncovered the root cause of my symptoms, regained balance, and restored my wellbeing…”

    — Patrycja Sokołowska

    (Hashimoto’s, inflammation, EBV infection, mast cells activation)

  • “…What began as support for a skin condition became a much deeper journey toward understanding my body and health. Hanna helped me approach healing holistically, showing me the importance of nutrition, emotions, and self-care. Her wisdom, empathy, and wholehearted commitment made me feel truly heard and understood…”

    — Oliwia Wrzeszcz

    (pityriasis versicolor, Candida ,gastrointestinal health, hormonal health)

  • "...Working with Hanna has been a transformational experience her ability to uncover root causes and connect the dots where others have missed has given me clarity and hope for my health journey. In my sixties, Hanna has shown me it’s never too late to make meaningful changes, and her holistic, supportive approach has motivated me to improve my nutrition, exercise, and overall wellbeing. Within just a few months, I’ve already seen visible improvements in my health, and Hanna’s care, expertise, and personalised support have made me feel truly understood and empowered..."

    Catriona Mackie

    (gastrointestinal health, cardiometabolic health, menopause, and HPA axis regulation)

Book a Discovery Call

Your 30-minute Discovery Call is a chance for us to understand your concerns, answer your questions, and explore whether

the LITHE Health Clinic is the right fit for you.

This is not a medical consultation

it’s an opportunity to connect, get clarity, and decide if we’re the right partners in your health journey.

FAQ’S

  • Initial Health Assessment (1,5h)

    During your initial consultation (1.5 hours), we take a full history of your health — including your symptoms, vital signs, lifestyle, medical history, and any previous investigations.
    We’ll ask more questions around the questionnaire you provided prior to the initial consultation.

    We then provide a comprehensive root cause analysis and functional health assessment — our understanding of your health picture — and may recommend advanced laboratory testing (blood, urine, saliva, or stool), tailored to your situation.


    The goal is to identify root causes rather than simply address symptoms.

    Following the assessment, we create a personalised healthcare plan that may include tailored nutrition, therapeutic supplements, lifestyle interventions, and ongoing monitoring.

    Conventional medical care, prescriptions where appropriate, and specialist collaboration are incorporated when needed to optimise outcomes.

  • Yes. You will be asked to complete a detailed questionnaire prior to your initial consultation. This is an essential part of the clinical process, helping me gain a thorough understanding of your health history, symptoms, lifestyle, and personal story. It provides the foundation for developing a personalised, targeted healthcare plan tailored to your unique needs. You are also encouraged to share any relevant medical documentation, laboratory results, scans, or previous test reports in advance, as these can provide valuable clinical insight and help inform your assessment and care plan.

  • Yes, we believe in integrated care. We act as a consultant partner in your health journey, and with your consent we liaise with your GP or specialist to ensure coordination of care. We do not replace primary care, but rather enhance it with a functional-medicine lens.

    Health is complex and rarely follows a simple cause-and-effect pattern; a single condition may result from multiple factors, while one underlying issue can contribute to various health concerns. Nutritional Therapy and Functional Medicine focus on identifying and addressing these root causes, rather than merely managing symptoms.

  • Yes, we provide consultations in person at our clinic in Poland and via secure online video for clients both UK-wide and worldwide. This allows us to support clients wherever you are.

  • We partner with well-established private laboratories specialising in functional medicine-type testing. Depending on your individual case, we may order standard biomarkers (e.g., thyroid panel, lipid/metabolic profile, nutrient levels) and more advanced specialised tests (e.g., adrenal/cortisol panels, hormonal, gut microbiome, hormone metabolites, total toxic burden, genetic panels).

    Each test is chosen specifically based on your health history, symptoms and goals.

  • Results vary widely depending on your starting point, the complexity of your health picture, your adherence to the plan, and the specific systems involved. Many clients begin noticing improvements (e.g., energy, sleep, mood) within the first weeks, but our foundational programmes are structured for at least 3 months to allow meaningful change and stabilisation.

    For longer-standing or more complex issues (e.g., autoimmunity, chronic hormonal imbalance), further follow-up beyond 3 months is usually required.

  • Because we offer a specialised, functional/consultative model, coverage varies. Some clients may be able to claim part of the cost via health insurance or health-savings accounts, but many of our services are fee-based. We recommend checking with your provider ahead of time, and our team can provide receipts and support documentation for reimbursement where applicable.