Natural health, taken seriously.
The herbs, foods and daily habits people have trusted for generations, examined with care. 873 guides, each traced to its sources and graded on what the research shows.
Start with: Sleep Gut health Stress Blood pressure Menopause Herbs
Evidence grows. Every claim shows where it stands.
Tradition tells researchers where to look, and trials show what holds up. We rate each use of a remedy separately, so ginger can be promising for nausea and unproven for colds.
Not enough evidence
Too few good human studies to say yet. Not shown is different from shown not to work.
Promising but early
Positive results from small, early or mixed trials. Worth knowing about, and worth raising with your clinician.
Strong evidence
Our top rating. Consistent results from good human trials or reviews.
Evidence says no, or unsafe
Tested properly and failed, or linked to documented harm.
Natural approaches with strong evidence
Some of the most dependable findings in the library are also the simplest.
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Morning light moves your body clock earlier.
From A cloudy morning outside beats a bright office for your body clock
Sleep & recovery
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A daily handful of nuts goes with lower heart disease risk.
From A daily handful of nuts holds up in research, but go easy on Brazil nuts
Food & nutrition
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Specific probiotic strains help prevent antibiotic diarrhea in children.
From Probiotics work for a few jobs, so match the strain or skip the bottle
Gut & digestive health
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Medical honey dressings help partial-thickness burns heal.
From Honey dressings speed burn healing, and home honey remedies need their own rules
Home remedies
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Strength training lowers the risk of sports injuries.
From What prevents running injuries after the 10% rule failed its biggest test
Movement & exercise
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A short afternoon nap improves alertness and performance.
From Short naps restore alertness, while long ones can be a warning sign
Sleep & recovery
Start with the plant
Each herb guide covers where the plant comes from, the uses that hold up, the ones that don't, and how to buy it well.
- GingerZingiber officinaleBest-supported usePregnancy nauseaRead the ginger guide
- PeppermintMentha × piperitaBest-supported useIBS cramps, coated oil capsulesRead the peppermint guide
- ChamomileMatricaria chamomillaBest-supported useGeneralized anxiety, extract capsulesRead the chamomile guide
- TurmericCurcuma longaBest-supported useKnee osteoarthritis painRead the turmeric guide
- GarlicAllium sativumBest-supported useA small drop in blood pressureRead the garlic guide
- LavenderLavandula angustifoliaBest-supported useAnxiety, oral oil capsulesRead the lavender guide
- ElderberrySambucus nigraBest-supported useCold and flu symptoms, still debatedRead the elderberry guide
- AshwagandhaWithania somniferaBest-supported useStress, branded extractsRead the ashwagandha guide
- ValerianValeriana officinalisBest-supported useHot flashesRead the valerian guide
- Milk thistleSilybum marianumBest-supported useFatty liver, small trialsRead the milk thistle guide
Browse the library
Six collections, from everyday habits and health concerns to herbs, natural therapies and choosing products wisely.
Health topics 280 guides
Healthy living 353 guides
Herbs & supplements 152 guides
Natural therapies 62 guides
Research & guidance 131 guides
New in the library
- Behavior science tested its own tricks at scale, and rewards and repetition held up Huge experiments show most nudges have small, short-lived effects, while paying smokers to quit works, new habits take about two months and weight-loss drugs still depend on daily routines.
- Traditional medicine got WHO codes, and testing it fairly is the harder part WHO now codes traditional diagnoses and has a 10-year research agenda, but acupuncture's small edge over sham needling and a history of weak herbal trials show why fair testing matters.
- Plants gave us Taxol and digoxin, yet the herb isn’t the drug Many vital medicines began as bark, leaves or flowers. Here is how scientists turn a variable plant into a dose you can trust, and why FDA lists only four approved botanical drugs.
- Integrative care has gone mainstream and is now being tested like medicine The VA, cancer centers, Medicare and food programs now blend conventional and complementary care. The first rigorous tests show modest gains, one notable miss, and payment rules that lag behind.
How every guide is made
Sources you can check
Each guide lists its sources, from NIH and European regulators to peer-reviewed trials, numbered where they're used.
Graded one use at a time
A remedy can be strong for one job and unproven for another, so every use gets its own rating.
Respect for tradition
We record how healing traditions have used a plant, and say plainly where that history has and hasn't been tested.
Dated and open about review
Every guide shows when it was last updated and whether a clinician has reviewed it, and any guide has a link for reporting a correction.