Behind 'echinacea' lie varied products with different effects. The best data concerns recurrent colds, but quality issues and interactions require caution.
By Anja Vogel8 min read431
Valerian teas, powders, extracts and herbal blends are not interchangeable. Evidence for insomnia remains inconsistent, and precautions matter.
By Claire Mercier10 min read353
Standardized horse chestnut seed extract can relieve heavy leg symptoms in venous insufficiency. Discover the evidence, correct dosage, forms, and precautions.
By Claire Mercier10 min read328
Flowers, cooked berries, syrups, or extracts of black elderberry: what the EMA recognizes, what the trials on the common cold actually show, and why raw berries should be avoided.
By Anja Vogel7 min read327
Boswellia, knee osteoarthritis, standardized extracts, digestive effects and precautions: the facts, without overselling.
By Anja Vogel8 min read318
Lavender in cooking, as an infusion, diffused, or as essential oil: forms that aren't equivalent, limited evidence, and precautions that change depending on use.
By Claire Mercier9 min read314
Candy, anise-flavored drink, tea, extract, or deglycyrrhizinated licorice: how the forms differ, what the EMA recognizes, and why glycyrrhizin thresholds aren't a green light.
By Claire Mercier8 min read312
Fennel's digestive benefits depend on the preparation, and clinical evidence remains limited. Learn how food, tea and essential oil differ, with practical precautions for adults, infants and pregnancy.
By Claire Mercier17 min read309
Cinnamon can flavor everyday meals, but evidence doesn't establish it as a treatment for diabetes or digestive problems. Learn how Ceylon and cassia differ, why coumarin matters, and which preparations need extra caution.
By Claire Mercier17 min read309
Ashwagandha is marketed for stress, sleep and vitality. Trials show some signals, mostly with specific extracts; the safety picture calls for real vigilance.
By Claire Mercier10 min read308
The word ginseng covers several plants and preparations. The evidence is stronger for certain traditional uses of Panax ginseng than for broad claims about energy, memory, or mental performance.
By Claire Mercier9 min read306
Dry extract, tincture, or valerian tea: what the EMA recognizes, why a felt improvement doesn't prove a treatment for insomnia, and the risks to know.
By Claire Mercier8 min read305
St. John's wort may help with certain mild to moderate depression, but it reduces the effectiveness of many essential medications. Interactions, mechanism, effectiveness compared with antidepressants, and warning signs to know.
By Claire Mercier10 min read305
Tea, extract, or essential oil of lemon balm: what the EMA recognizes, what trials actually show on stress and sleep, and precautions related to drowsiness and the thyroid.
By Anja Vogel7 min read294
Aloe vera gel, latex and whole-leaf extracts have different uses and risks. Learn what the evidence supports, how to read product labels and when to seek professional advice.
By Claire Mercier17 min read288
Hawthorn, palpitations, stress and the heart: when to see a doctor, what traditional use actually covers, and the limits of the evidence.
By Claire Mercier5 min read287
Peppermint tea, essential oil or enteric-coated capsules: what IBS trials show, why reflux matters and what to consider before use.
By Claire Mercier7 min read285
Can ginger help with nausea? A look at the evidence, how preparations differ, and what to consider before taking a supplement.
By Claire Mercier9 min read285
Ginkgo biloba is sold for memory, but evidence is narrow, mostly for specific dementia symptoms. It does not prevent cognitive decline. Bleeding risk is a major concern.
By Claire Mercier10 min read283
Turmeric has a real place in the kitchen and some interesting data on certain osteoarthritis symptoms. But between powder, concentrated extract and a formula with piperine, the effects and the risks are not the same.
By Claire Mercier10 min read280
Rosemary has a recognized traditional use for mild digestive symptoms, but claims about memory and hair growth rest on limited evidence. Learn how the preparations differ and when to seek professional advice.
By Claire Mercier17 min read277
Herbal tea, extract, sleep, digestion, Asteraceae allergies and interactions: reading the uses of German chamomile with precision.
By Claire Mercier10 min read275
Artichoke hearts and medicinal leaf extracts are not interchangeable. Learn what the evidence shows about indigestion, how portions affect FODMAP tolerance, and who should avoid leaf preparations.
By Claire Mercier16 min read271
Leaf, root, tea or extract: what the EMA recognizes for dandelion, what the single human trial on its diuretic effect shows, and the biliary contraindications to know.
By Claire Mercier6 min read270
Ribwort plantain: a traditional use recognized by the EMA for an irritated throat and dry cough, forms to distinguish, the limits of the data, and signs that call for a doctor.
7 min read268
Common sage and hot flashes, digestion or sweating: what small trials show, what the EMA recognizes, the role of thujone, and precautions depending on the form.
By Claire Mercier8 min read265
How glycyrrhizin raises blood pressure and lowers potassium, which symptoms to watch for, which medications cause problems, and who should avoid licorice.
By Claire Mercier8 min read260
Tea, syrup, extract, or essential oil of thyme: what the EMA recognizes for a productive cold cough, what trials show, and situations that call for a doctor.
7 min read257
Passionflower for sleep and mild stress: what the EMA recognizes, what studies show, the difference between tea and extract, drowsiness, and interactions.
By Anja Vogel7 min read257
Nettle leaf or root: traditional uses recognized by the EMA, prostate trials, forms not to confuse, side effects, and warning signs.
By Anja Vogel8 min read245