Explore Natural Remedy Safety
Every Natural Remedy Safety topic in one list: urgent help, basics, interactions, life stages, conditions, surgery, quality, labels, regulation, reporting, professionals and sources.
Content last updated . This page has not been medically reviewed.
This is the full index of the Natural Remedy Safety library. If someone may have swallowed something harmful, do not browse: call 911 for collapse, seizure, trouble breathing or swelling of the face or throat, 988 for a mental health crisis (US), or Poison Help at 1-800-222-1222 (US), and start with the first list below.
The library is information only. Herb, oil, mushroom, tea, ingredient, food and supplement profiles live in their own sections; here we cover the cross-cutting safety questions. Pages are grouped into 14 layers.
Poisoning and urgent help
Call first. What to do if someone may have swallowed, touched or breathed something harmful.
- Poisoning: What to Do First
- Poison Help by Country
- Plant and Mushroom Poisoning: Never Rely on a Photo or App
- Pet and Animal Poisoning: Animal Poison Lines Are Separate
- When to Call 911, Poison Help or a Clinician After a Natural Product
- A Child Swallowed a Supplement, Essential Oil or Herbal Product: What to Do
- Severe Allergic Reactions to Natural Products: Warning Signs and Emergency Help
- Liver Injury Warning Signs From Supplements and Herbs
- Serotonin Syndrome and Other Dangerous Medicine-Supplement Reaction Signs
- Mental Health Crisis and Natural Remedies: When 988 Comes First
- What to Tell Poison Help When You Call: A Ready List
- Mushroom, Plant and Berry Ingestions: Urgent Steps (No Identification Guidance)
- Taking Too Much: Overdose With Vitamins, Minerals and Herbs
Safety basics
Why natural does not mean safe, how supplements are regulated and how to judge a claim.
- Natural Does Not Mean Safe: The Two Main Concerns
- How Supplements Are Regulated: What FDA Does and Does Not Review
- Evaluating Safety Claims: A Checklist for "Safe", "Natural" and "Tested"
- Why "Natural" Does Not Mean Safe: Real Examples From Regulators
- Documented, Reported and Theoretical Risks: How to Read Safety Statements
- Who Should Ask First: People at Higher Risk From Natural Products
- How the Body Processes Herbs and Supplements: Liver Enzymes and Transporters Explained
- Natural Cure Claims on Social Media and Online: How to Check Them
Medicine and supplement interactions
How interactions happen and what sources document by medicine group.
- How Interactions Work: Documented, Reported, Preliminary and Theoretical
- Interactions by Drug Class: What Sources Document
- St. John's Wort Interactions: The Best-Documented Herb-Drug Interaction
- Grapefruit and Medicine Interactions
- Supplements and Blood Thinners: Warfarin, Aspirin and Newer Anticoagulants
- Supplements and Antidepressants: SSRIs, SNRIs and MAOIs
- Supplements and Blood Pressure and Heart Medicines
- Supplements and Diabetes Medicines: Low Blood Sugar Risk
- Supplements and Statins and Cholesterol Medicines
- Supplements and Thyroid Medicines: Absorption and Test Results
- Supplements and Immunosuppressants and Transplant Medicines
- Supplements and Cancer Treatment: Chemotherapy, Radiation and Targeted Drugs
- Supplements and HIV, Antiviral and Antibiotic Medicines
- Supplements and Birth Control and Hormone Medicines
- Supplements, Sedatives, Sleep Medicines and Alcohol
- Supplements and Pain Medicines: NSAIDs, Acetaminophen and Opioids
- Narrow-Range Medicines and Supplements: Warfarin, Digoxin, Lithium, Cyclosporine
- Food and Drink Interactions With Medicines: Grapefruit, Vitamin K, Tyramine, Alcohol
- How to Check an Interaction Safely: Pharmacists and Official Resources
Life stages
Pregnancy, breastfeeding, trying to conceive, babies, children, teens and older adults.
- Pregnancy and Breastfeeding: Supplements and Herbs
- Children and Teens: Why They Are Different
- Older Adults: More Medicines, More Interactions
- Trying to Conceive: Supplements and Herbs to Ask About
- Pregnancy: Herbs and Supplements Official Sources Flag
- Breastfeeding: Herbs and Supplements and How to Read LactMed
- Babies and Infants: Natural Remedies to Ask a Pediatrician About
- Children: Supplements, Gummies and Herbs - Poisoning and Dosing Risks
- Teenagers and Young Adults: Bodybuilding, Weight-Loss and Energy Products
- Older Adults: Falls, Kidney Function and Keeping a Medicine List
Existing health conditions
Liver, kidney, heart, diabetes, cancer, autoimmune, thyroid, mental health, epilepsy and bleeding conditions.
- Existing Health Conditions: Where a Supplement May Matter
- Liver Safety and Supplements: Warning Signs to Act On
- Kidney Disease and Supplements: Herbs, Minerals and Protein Products
- Heart Disease, High Blood Pressure and Supplements
- Diabetes and Supplements: Low Blood Sugar and Unproven Cures
- Cancer and Natural Remedies: What to Tell Your Care Team
- Autoimmune Conditions and Immune-Stimulating Products
- Thyroid Conditions: Iodine, Biotin and Herbal Products
- Mental Health Conditions: Bipolar Disorder, Anxiety and Supplements
- Epilepsy and Seizure Risk With Herbs and Essential Oils
- Bleeding Disorders and Supplements That Affect Clotting
- Eating Disorders, Weight-Loss Supplements and Laxative Misuse
- Allergies, Asthma and Plant Product Cross-Reactions
- Alcohol Use Disorder and Alcohol-Containing Herbal Products
Surgery and procedures
Telling your surgical, anesthesia and dental teams.
- Supplements Before Surgery: Bleeding, Anesthesia and Blood Pressure
- Which Supplements Surgical Teams Ask About and Why
- Anesthesia and Herbal Supplements: What Anesthesiology Sources Say
- How to Prepare Your Supplement List for a Procedure
Quality and contamination
Heavy metals, hidden drugs, adulteration, counterfeit and online products, and recalls.
- Product Quality and Contamination: What Is in the Bottle May Differ From the Label
- Unsafe Products and Warnings: Tianeptine, Hidden Drugs and Weight-Loss Products
- Heavy Metals in Supplements and Herbal Products: What Testing Found
- Hidden Drugs in Supplements: Tainted Weight-Loss, Sexual Enhancement and Muscle Products
- Adulteration, Substitution and Mislabeling of Herbal Products
- Buying Supplements Online: Marketplaces, Counterfeits and Third-Party Sellers
- Imported and Traditional Medicine Products: Safety Reports and Respectful Caution
- Third-Party Testing and Certifications: What They Show and Do Not Show
- Recalls and Safety Alerts: How to Find Them and What to Do
Labels and amounts
The Supplement Facts panel, amounts, duplicate ingredients and claims.
- Reading Supplement Labels: Supplement Facts, Other Ingredients and the FDA Disclaimer
- Amounts and Duplicate Ingredients: Stacking Products With the Same Effect
- Proprietary Blends: Why a Total Weight Hides the Amounts
- Latin Names, Plant Parts and Extract Ratios on Labels
- Claims on Labels: Structure/Function vs Disease Claims and the FDA Disclaimer
- Upper Limits and Recommended Intakes: Reading Official Tables (NIH, EFSA, Health Canada)
Regulation by country
How supplements and herbal medicines are regulated in different places.
- US Regulation: DSHEA and FDA Oversight of Dietary Supplements
- EU Regulation: Food Supplements, Novel Foods, Health Claims and Traditional Herbal Medicines
- UK, Canada and Australia: How Natural Health Products Are Regulated
- Banned and Restricted Ingredients: Ephedra, Aristolochic Acid, DMAA and Others
Side effects and reporting
What to do if something goes wrong and how to report it.
- Side Effects, Allergic Reactions and Reporting
- How to Report a Side Effect in the US: MedWatch and the Safety Reporting Portal
- How to Report a Side Effect in the UK, Canada, Australia and the EU
- What to Do After a Reaction: Document, Contact a Professional, Keep the Product
Talking with a professional
What to bring, what to ask, whom to ask and when to see a clinician.
- Talking With a Health Professional: What to Bring, What to Ask and Whom to Ask
- Questions to Ask Your Pharmacist About Herbs and Supplements
- How to Tell Your Doctor You Use Natural Remedies
- When to See a Clinician Instead of Trying a Remedy: Red-Flag Symptoms
- A Printable Medicine and Supplement List to Bring to Appointments
Safety by remedy type
Entry points to the safety page for each type of remedy.
- Safety by Remedy Type: Herbs, Adaptogens, Mushrooms, Oils, Teas, Ingredients, Foods and Supplements
- Herbs and Botanicals Safety: Start Here
- Essential Oils Safety: Start Here
- Herbal Teas, Extracts and Natural Ingredients Safety: Start Here
Research and safety sources
The official sources used, how to read them and what each is for.
- Research and Safety Sources: What Each Official Source Is For
- How to Use NCCIH, MedlinePlus, LiverTox and LactMed
- Where This Site Could Not Verify Information: A Transparency Note
Glossary and quick reference
Terms, an interaction-risk table, common questions and an emergency quick reference.
- Glossary of Natural Remedy Safety Terms
- Interaction Risk at a Glance: Medicine Groups and Supplements Sources Flag
- Natural Remedy Safety: Frequently Asked Questions
- Emergency Quick Reference: Whom to Call (911, 988, Poison Help)
Related sections
Single-remedy safety lives with each remedy: Herbs & Botanicals, Essential Oils & Aromatherapy, Mushrooms, Herbal Teas & Extracts, Vitamins & Supplements and Specialty Topics.
Frequently asked questions
Is this site medical advice?
No. It is plain-language information from official sources. A pharmacist or clinician can look at your medicines, conditions and products.
Where should I start?
If it is an emergency, start with the first list below. Otherwise start with Natural does not mean safe.
Does natural mean safe?
Not always. NIH says "natural" does not always mean "safe." [1]
Where are the safety pages for a particular herb?
In the herb's own section. Safety by remedy type points to each one.
Which pages help me prepare for an appointment?
References
- National Center for Complementary and Integrative Health (NIH). Using Dietary Supplements Wisely. Read 2026-10-22.