Guides · 11 articles
Supplement Buying Guides: What to Check Before You Buy
Buyer's guides by health goal and plain-English explainers on FDA claims and refunds, with sources, linking to our individual supplement reviews.
By health goal
Buyer's guides
- Blood Sugar Support · 8 min readBest Blood Sugar Supplement? What the Evidence Shows and What to Check First in 2026What NCCIH, the American Diabetes Association and FDA say about chromium, cinnamon, berberine and other blood sugar supplements, why they don't replace diabetes care, how to read the label, and how Gluco6's label reads.
- Dental Health · 9 min readBest Dental Probiotics? What the Evidence Says About Oral Probiotics for Teeth and GumsWhat research and dental organizations say about oral probiotics for teeth, gums and breath, who should avoid them, and how ProDentim and ProvaDent compare on paper.
- Liver & Detox · 8 min readBest Liver Detox Supplement? What the Evidence Says Before You Buy One in 2026What NCCIH, NIDDK and FDA say about liver detox supplements and milk thistle, which common ingredients carry liver-safety warnings, and why Liv Pure and HepatoBurn list the same formula.
- Men's Health · 10 min readBest Nitric Oxide Supplement? What L-Arginine, L-Citrulline and Beet Root Can and Can't Do (2026)A plain-English guide to nitric oxide supplements: what NIH, Mayo Clinic and Cleveland Clinic say about L-arginine, L-citrulline and beet root, the nitrate and ED-medicine warnings, label tips, and a factual look at Nitric Boost Ultra.
- Gut & Digestion · 7 min readBest Probiotic for Gut Health? How to Choose One in 2026, and When to Skip ItWhat the American Gastroenterological Association, NCCIH and Cleveland Clinic say about probiotics for gut health, how to read strains and CFU counts, which red flags matter, and how PrimeBiome and LeanBiome compare.
- Men's Health · 10 min readBest Prostate Supplement? What the Evidence Says About Saw Palmetto, Zinc and More (2026)An evidence-first guide to prostate supplements: what NIH, Mayo Clinic and NIDDK say about saw palmetto and other common ingredients, how to read a label, red flags, and a factual look at ProstaVive.
- Hearing Support · 9 min readBest Supplement for Tinnitus? What NIH and the Evidence Say (2026 Guide)No supplement has been proven to relieve tinnitus. This guide explains what NIH, Mayo Clinic and the American Tinnitus Association say about ginkgo, zinc and other ingredients, what does help, label tips, red flags, and a factual look at Quietum Plus.
- Weight Management · 10 min readBest Supplements for Weight Loss? What the Evidence Says and How to Choose in 2026An evidence-first guide to weight-loss supplements: what NIH, FDA and Cleveland Clinic say about the usual ingredients, how to read a label, which red flags to walk away from, and how six formulas we've reviewed compare.
- Skin & Nails · 10 min readBest Treatment for Toenail Fungus? What Dermatologists Use and What OTC Products Can Do (2026)How toenail fungus is diagnosed and treated, according to the AAD, Mayo Clinic, Cleveland Clinic and MedlinePlus: prescription pills and nail solutions, procedures, over-the-counter options, red flags, and where a topical oil like Kerassentials fits.
Before you order
Explainers
- Explainer · 9 min readAre Supplements FDA Approved? What 'FDA-Registered' and 'GMP' Really Mean on LabelsDietary supplements aren't FDA-approved before they're sold. Here is what 'FDA-registered facility,' 'GMP certified,' 'third-party tested' and 'Made in USA' mean, plus the manufacturing claims 15 brands make.
- Explainer · 10 min readIs ClickBank Legit? What Digistore24 Is and How Supplement Refunds Actually WorkClickBank and Digistore24 are the retailers behind many supplement orders. How their refunds work, the time limits each platform sets, and the money-back terms for 15 brands.