Ranked by evidence
Best supplements by goal
By goal or condition
An evidence-ranked guide to supplements for muscle and strength: what actually works, what works only in specific cases, and what to skip.
What actually helps you fall asleep and stay asleep, ranked by strength of evidence — plus the popular sleep supplements that do not hold…
Which anxiety and stress supplements actually have trials behind them, ranked by strength of evidence — plus the popular ones worth…
Immune supplements ranked by strength of evidence: what actually shortens a cold, what only helps if you are deficient, and what to leave…
What actually helps focus and memory, ranked by strength of evidence: caffeine, citicoline and bacopa lead, and the popular brain pills…
What actually helps with low energy and fatigue, ranked by strength of evidence, plus the popular energy supplements that do not hold up.
What actually helps joint pain, ranked by strength of evidence: curcumin, boswellia and ASU lead, while glucosamine and most joint blends…
What actually works for skin, hair and nails, ranked by strength of evidence: collagen peptides give modest gains, biotin and silica do not.
The supplements with real evidence for cholesterol and heart health, ranked by strength of evidence — plus the popular ones that do not…
An evidence-ranked guide to gut and digestion supplements: what actually helps constipation, IBS, gas, nausea and antibiotic-related…
An evidence-ranked guide to supplements for blood pressure: what lowers it, by roughly how much, and which popular products to skip.
An evidence-ranked guide to supplements for blood sugar: which ones measurably lower glucose, which only blunt post-meal spikes, and what…
An evidence-ranked guide to weight-loss supplements: the one approach with strong evidence, the few that add a little, and the fat burners…
An evidence-ranked guide to supplements for hot flushes and other menopause symptoms: what helps modestly, and which bestsellers to skip.
An evidence-ranked guide to supplements for PMS: the few with moderate evidence, one option for period pain, and what to skip.
An evidence-ranked guide to supplements when trying to conceive: what actually has support, what helps only in specific cases, and what to…
An evidence-ranked guide to supplements in pregnancy: the few nutrients that clearly matter, what helps only in specific cases, and what to…
An evidence-ranked guide to supplements for children: the few with real support, the ones that help only in specific situations, and what…
An evidence-ranked guide to supplements for older adults: what actually works, what helps only in specific cases, and what to skip.
An evidence-ranked guide to supplements for vegans and vegetarians: the nutrients you need to cover, the situational extras, and what to…
An evidence-ranked guide to supplements for libido and erectile function: the few that beat placebo, who they suit, and the many to skip.
An evidence-ranked guide to prostate supplements: which ones modestly ease BPH urinary symptoms, and why saw palmetto and prostate blends…
An evidence-ranked guide to eye supplements: the AREDS2 formula for macular degeneration, modest options for dry eye, and the vision…
An evidence-ranked guide to liver supplements: the few with real data for fatty liver, and why milk thistle and detox blends are on the…
An evidence-ranked guide to bone supplements: vitamin D and calcium where they help, the smaller options, and the bone products to skip.
An evidence-ranked guide to supplements for preventing migraine: what has trial support, what carries real risk, and what to skip.
An evidence-ranked look at supplements for hay fever: none earns better than limited evidence, and some popular ones can cause reactions of…
What the evidence says about hangover supplements: no product has convincing trials, and the few defensible picks address side issues, not…
An evidence-ranked guide to anti-inflammatory supplements: which ones move markers or joint pain, which suit specific conditions, and what…
An evidence-ranked guide to recovery supplements: what speeds the return of strength, what eases soreness a little, and what does nothing.
An evidence-ranked guide to endurance supplements: carbohydrate and caffeine first, what helps only in specific events, and what to skip.
An evidence-ranked guide to supplements for testosterone: the one herb with real support, deficiencies worth correcting, and the boosters…
An evidence-ranked guide to thyroid supplements: when iodine or selenium makes sense, why thyroid support products are risky, and what to…
An evidence-ranked guide to supplements for acne: the one with reasonable trial support, and the popular ones to skip.
An evidence-ranked guide to supplements for low mood and mild depression: what has trial support, the interaction risks, and what to skip.
An evidence-ranked guide to hydration and electrolyte supplements: what helps after heavy sweating, what is situational, and what to skip.
An evidence-ranked guide to supplements for constipation: which fibres and laxatives actually work, which fit only certain cases, and what…
An evidence-ranked guide to supplements for colds and flu: what shortens symptoms a little, what fits specific cases, and what to skip.
An evidence-ranked guide to supplements for healthy aging: what protects muscle, bone and blood pressure, what fits specific cases, and…
An evidence-ranked guide to supplements for jet lag and travel: what helps you adjust, what keeps you alert, and what to skip.
An evidence-ranked guide to supplements for polycystic ovary syndrome: why myo-inositol leads, how weak the evidence still is, and what to…
An evidence-ranked guide to supplements for irritable bowel syndrome: peppermint oil, psyllium and specific probiotic strains, and what to…
An evidence-ranked guide to supplements for period pain: what fennel and ginger can do, how they compare with painkillers, and which herbs…
An evidence-ranked guide to supplements for preventing recurrent UTIs: where cranberry works, why D-mannose failed its best trial, and what…
An evidence-ranked guide to supplements and kidney stones: what citrate does, which supplements raise your risk, and what to skip.
An evidence-ranked guide to supplements for fatty liver disease: what the vitamin E Cochrane review found, what moves liver enzymes, and…
An honest, evidence-ranked look at supplements for leg and muscle cramps: why magnesium disappoints and the narrow cases where something…
Evidence-ranked supplements for restless legs syndrome: why iron helps when ferritin is low, and why magnesium, vitamin D and valerian fall…
Evidence-ranked supplements for hair loss: why fixing a real deficiency matters most, and why biotin, saw palmetto and hair formulas…
An honest look at supplements for gout and high uric acid: modest effects from vitamin C and tart cherry, and the products that can raise…
Evidence-ranked supplements for sarcopenia: protein, creatine and HMB help mainly alongside resistance training, and vitamin D only if you…
If you take a medication
What metformin does to vitamin B12, when to test and supplement, and which glucose-lowering supplements not to stack on top of it.
How long-term PPIs such as omeprazole affect magnesium, B12, iron and calcium, what to test, and which supplements work against the drug.
What adds to a statin, what CoQ10 really does for muscle aches, and why red yeast rice and some herbs stack dangerously with your statin.
Potassium, magnesium and thiamine on thiazide and loop diuretics, why extra potassium is dangerous with spironolactone, and herbs that…
Which nutrients the combined pill may affect, why folic acid still matters, and which supplements can make the pill less reliable.
How calcium, iron, magnesium, soy and fiber block levothyroxine, how biotin distorts thyroid tests, and what selenium really does.
Protecting muscle, easing constipation and covering nutrient gaps on semaglutide or tirzepatide, and why "natural Ozempic" products are no…
In-depth articles
What creatine does beyond muscle, graded by evidence: memory, sleep loss, depression, aging, women, vegetarians, brain injury, safety myths…
Lab tests show label errors and hidden drugs cluster in sexual, weight-loss, bodybuilding, CBD and herbal products, while most…