Health resources.Start with a question.
Explore functional medicine, gut health and healthy ageing, with guides to the evidence and the questions to ask.
Browse all resources
Choose a topic to see the published guides and consultation information.
Understanding functional medicine
- Functional Medicine Doctor in London
- What Is Functional Medicine? Evidence, Principles and Limits
- Functional Medicine vs Conventional Medicine
- Meet Dr Stavy
- Health Conditions and Symptoms: Find the Right Assessment Route
- Treatments and Services
- Is Functional Medicine Right for Me?
- Choosing a Functional Medicine Practitioner
- Functional, Integrative, Holistic and Alternative Medicine: What's the Difference?
- Functional Medicine Doctor vs Nutritional Therapist
- Functional Medicine vs Naturopathy vs Homeopathy: What's the Difference?
- What Is the Evidence for Functional Medicine?
- What Does 'Root Cause' Mean in Medicine - and What Are Its Limits?
- Questions to Ask Before Booking a Functional Medicine Practitioner
- Working With Your NHS GP While Seeing a Private Functional Medicine Doctor
Consultation, fees and follow-up
- Your first functional medicine consultation
- Consultation fees & costs
- Online Functional Medicine Consultations UK
- Patient Reviews and Experience
- International & Remote Patients
- How to Prepare for a Functional Medicine Consultation
- What Happens After a Functional Medicine Consultation?
- Understanding Your Test Results: Questions to Ask Your Doctor
- When to Repeat Tests: Monitoring Without Over-Testing
Tests, food reactions and genetics
- Functional Medicine Testing and Diagnostics
- Food Allergy and Food Intolerance: Assessment and Testing
- Do You Need Advanced Testing? When More Tests Help - and When They Don't
- Standard Blood Tests vs Specialist Tests
- Microbiome Tests: Uses and Limits
- Food Allergy and Intolerance
- Genetic Testing: Uses and Limits
- Nutrigenomics: Genes and Food Advice
Gut health
- Gut Health and Persistent Digestive Symptoms
- FUNCTIONAL MEDICINE APPROACH TO SIBO
- Functional Medicine for IBS
- Persistent Bloating and Gas: Causes and When to Investigate
- Changes in Bowel Habit: Constipation, Diarrhoea and Red Flags
- After SIBO Treatment: Preventing Relapse and Maintaining Gut Health
- SIBO Breath Testing: Accuracy, Limits and Interpretation
- Stress, the Gut-Brain Axis and Digestive Symptoms
- Leaky Gut / Increased Intestinal Permeability: What the Evidence Shows
- Gut Health and Healthy Ageing: What the Evidence Shows
Women’s health, hormones and fertility
- Women’s Hormonal Health: Symptoms and Assessment
- Menopause and Perimenopause: Understanding Your Options
- PCOS: Reproductive and Metabolic Health Assessment
- Thyroid Health and Persistent Symptoms
- Hormone Health & Optimisation: Assessment, Treatment and Monitoring
- Hormone Testing: When It Helps and How Timing Changes Results
- Fertility and Preconception Health: Evidence-Based Lifestyle and Medical Support
- Endometriosis: Symptoms, Medical Assessment and Support
Weight, diabetes and metabolic health
- Insulin Resistance and Metabolic Health: What Assessment Can Tell You
- Metabolic Health and Healthy Ageing
- Medical Weight Management and Obesity Care
- Weight-Management Medicines: Assessment and Monitoring
- Diabetes Management and Metabolic Health
- Unexplained Weight Change: Causes and Medical Assessment
- Intermittent Fasting: Evidence and Limits
- Maintaining Metabolic Health Over Time
- Diabetes and Functional Medicine: Adjunctive Lifestyle Support and Safety
Heart health and cholesterol
Persistent symptoms, fatigue and immune health
- Functional Medicine for Persistent Symptoms and Chronic Disease
- Autoimmune Health: Assessment and Support
- Persistent Fatigue and Low Energy Assessment
- Persistent Fatigue: Common Causes, Red Flags and Assessment
- Brain Fog: What to Notice and When to Seek Help
- Blood Tests Are Normal but I Still Feel Unwell: What Next?
- Recurrent Infections: When to Seek Medical Assessment
- Multiple Unexplained Symptoms: How Doctors Structure the Assessment
- Chronic Inflammation: Evidence-Based Ways to Reduce Risk and Support Healthy Ageing
- Functional Medicine For Eczema
- Persistent Skin Conditions: Psoriasis, Acne and Dermatitis
- Functional Medicine for Chronic Kidney Disease
- Functional Medicine for Arthritis
- Fibromyalgia: Multidisciplinary Assessment and Support
- Osteoporosis and Bone Health: Evidence-Based Nutrition, Exercise and Medical Care
- Lyme Disease and Persistent Symptoms: Evidence-Based Assessment and Safety
Sleep, stress and mental health
- Sleep, Stress, Mood and Mental Health
- Functional Medicine For Sleep Disorders
- 'Adrenal Fatigue' vs HPA-Axis Dysfunction: What the Evidence Says
- Autism: Nutrition, Gut Symptoms and Complementary Care: Evidence and Safety
- Anxiety and Chronic Stress: Medical Assessment, Lifestyle Support and When to Seek Help
- Burnout: Symptoms, Chronic Stress and When to Seek Medical Help
- PTSD and Trauma-Related Symptoms: Medical, Psychological and Integrative Support
- ADHD: Medical Assessment, Lifestyle Factors and Complementary Care - Evidence and Safety
- Depression and Persistent Low Mood: Assessment, Support and When to Seek Urgent Help
Healthy ageing
- Longevity Medicine in London
- Longevity Biomarkers: What They Can and Cannot Tell You
- Brain, Sleep and Cognitive Health as You Age
- Healthy Ageing and Healthspan: Evidence-Based Priorities
- Functional Medicine and Healthspan: Keeping the Goals Clear
- Detox Claims and Healthy Ageing
- Epigenetics and Biological-Age Tests
- Mitochondria, Energy and Fatigue
- Nutrition for Healthy Ageing: What Has the Strongest Evidence?
- Muscle Strength, Fitness and Healthy Ageing
- Longevity Supplements: Evidence and Safety
- Healthy Ageing Annual Review: What to Track and Reassess
- Senolytics and Healthy Ageing: What Human Evidence Exists?
- Hormones and Healthy Ageing: Evidence, Risks and Medical Assessment
- Sleep and Longevity: How Sleep Affects Healthy Ageing
Men’s health
GP care and health screening
- Private GP and Holistic Medical Care in London
- Private Health Screening and Preventive Assessment
- Private Health Screening: Benefits, Harms, False Positives and Overdiagnosis
- Tumour Markers for Screening: Why They Usually Need Clinical Context
- Preventive Blood Tests: What a Health Assessment May Include
- NHS Screening vs Private Health Screening
Nutrition, supplements and medicines
- Nutritional Therapy: Choosing Useful, Personal Advice
- Supplements and Prescription Medicines: Interaction and Safety Checklist
- Medicines and Nutrient Status: Evidence, Monitoring and Risk
- Metformin and Vitamin B12 Deficiency: Risk, Testing and Monitoring
- Proton Pump Inhibitors and Nutrient Deficiency Risk
Homeopathy
- Homeopathy Consultations: Scope, Evidence and Safety
- Homeopathy: What the Evidence Says and How to Use Complementary Care Safely
- DRAINAGE IN HOMEOPATHY: WHY IS IT IMPORTANT TO DETOXIFY OUR BODY?
- Homeopathy for Hay Fever
- Homeopathy for Asthma and Allergies: Evidence, Safety and Standard Treatment
- Homeopathic Summer First-Aid Kit: Appropriate Use and Safety
- Homeopathy FAQs: Evidence, Safety and What to Expect
Support during and after cancer treatment
Clinic locations
Dr Stavy’s health resources bring the available articles and consultation guides together. Choose a subject below, then open the full page for its explanation, sources and limits. This is general information, rather than advice for your individual circumstances.
Understand the approach
What is functional medicine?
A guide to the meaning of functional medicine, its main principles, the evidence and its limits. Explore how to judge the claims behind a test, treatment or provider.
Read the functional medicine guide →Start here if you want to understand:
- What the term means in practice.
- How evidence relates to different tests and treatments.
- What to ask when comparing providers.
Follow the question that brought you here.
These guides take a closer look at digestive concerns and the claims around inflammation and healthy ageing.
Gut health and persistent symptoms
Read about persistent bloating, discomfort and bowel changes, the questions an assessment can address, and how previous results fit into the discussion. The guide also explains the consultation route.
Read the gut-health guide →
Chronic inflammation and healthy ageing
Explore what chronic inflammation means, what blood markers can tell you, and the evidence and limits behind diet, activity and healthy-ageing claims.
Read the inflammation guide →Explore a consultation topic.
Looking into a service at the practice? These pages explain what each service covers, who to ask about seeing and what to clarify before making an appointment enquiry.
You can read the background first and return to the service details when you are ready. The individual pages set out their own scope and cost information.
Keep the explanation with the evidence.
A short summary is a starting point. Open the full guide to see the detail and the limits around a claim. Where research is discussed, follow the source links on that page rather than relying on a headline alone.
The guides cover different questions. A description of a consultation tells you about a service; it does not by itself establish that every associated test or treatment will help you.
Take useful questions into a discussion.
- Which part of this information relates to my concern?
- What remains uncertain or needs an individual assessment?
- What would I like a clinician to explain more clearly?
Bring those questions to a clinician who knows your circumstances. A guide cannot review your history, interpret all your results or agree a personal plan with you.
Finding your way through the resources
Where should I start if functional medicine is new to me?
Start with the “What is functional medicine?” guide. It explains the term, the principles, the evidence and the limits in one place. You can then choose a more focused guide about gut health, inflammation or testing, depending on the question you would like to understand.
Are the consultation guides different from the articles?
Yes. The articles introduce a subject and discuss its context, evidence and limits. The consultation guides also explain a service at Dr Stavy’s practice, including the questions to ask before you enquire. Read the individual page for its full scope and check the relevant fees information before booking.
Where can I find the research behind a guide?
Open the individual guide and follow its reference links and sources section. Read the explanation beside a source as well as the headline: a study can answer one question without answering every question about the same topic. This index gives a short introduction; the full context remains on the linked page.
Can these resources give me advice for my own situation?
These resources provide general information. They cannot assess your circumstances or replace advice from a clinician who knows your case. Use them to prepare questions for a discussion. If you want to explore the practice’s approach and consultation options, follow the functional medicine service link below.
Want to understand the practice’s approach?
Read about functional medicine consultations with Dr Stavy in London. The service page explains the approach and the practical next steps, so you can decide what you would like to ask.