# Vitamins - webcentive

Source: https://www.webcentive.com/vitamin/vitamin.html  
Format: Markdown version of the HTML page (same content, lookups and page chrome left out).

Vitamins and supplements, with safety first. The FDA does not approve supplements before they are sold, and no supplement may legally claim to cure or treat a disease. Weight loss, sexual and bodybuilding products are the most likely to hide real drugs. Look for a USP Verified or NSF seal, ask your doctor or pharmacist about interactions, and report bad reactions to FDA MedWatch. Brands and stores below are commercial.  

More on webcentive: [nutrition](https://www.webcentive.com/nutrition.html) | [health/beauty](https://www.webcentive.com/health/) | [healthcare](https://www.webcentive.com/shophealthcare/) | [organic food](https://www.webcentive.com/organicfood/) | [rawfood](https://www.webcentive.com/rawfood/)  

Each site has quick lookups: who owns it (whois), its history (Wayback Machine), a safety check, and one-tap questions to AI helpers. Grok asks you to tap Send first.  
Links last checked Oct 19, 2026.  

- **Supplement safety and scam warnings (start here)**
- [fda.gov](https://www.fda.gov/food/dietary-supplements) - FDA: supplements are not approved before they are sold
- [fda.gov (fraud)](https://www.fda.gov/consumers/health-fraud-scams/health-fraud-product-database) - FDA health fraud database: supplements with hidden drugs
- [fda.gov (MedWatch)](https://www.fda.gov/safety/medwatch-fda-safety-information-and-adverse-event-reporting-program) - FDA MedWatch: report a bad reaction to a supplement
- [fda.gov (tainted)](https://www.fda.gov/drugs/medication-health-fraud/medication-health-fraud-notifications) - FDA: tainted weight loss, sex and bodybuilding products
- [ftc.gov](https://consumer.ftc.gov/articles/common-health-scams) - FTC: no supplement may claim to cure or treat a disease
- [ftc.gov (claims)](https://www.ftc.gov/business-guidance/resources/health-products-compliance-guidance) - FTC: health claims must be backed by solid science
- [nsfsport.com](https://www.nsfsport.com/) - NSF Certified for Sport: tested for banned substances
- [ods.od.nih.gov](https://ods.od.nih.gov/factsheets/list-all/) - NIH Office of Dietary Supplements: fact sheets
- [usada.org](https://www.usada.org/substances/supplement-connect/) - USADA Supplement Connect: risk guide for athletes
- [usp.org](https://www.usp.org/verification-services/verified-mark) - USP Verified mark: tested for what the label says (may block automated checks)
- **Fact sheets and label lookups**
- [consumerlab.com](https://www.consumerlab.com/) - ConsumerLab: independent tests (paid)
- [dsld.od.nih.gov](https://dsld.od.nih.gov/) - NIH Dietary Supplement Label Database
- [medlineplus.gov](https://medlineplus.gov/dietarysupplements.html) - MedlinePlus: dietary supplements
- [nccih.nih.gov](https://www.nccih.nih.gov/health/using-dietary-supplements-wisely) - NIH NCCIH: using supplements wisely
- **Vitamin brands (commercial)**
- [centrum.com](https://www.centrum.com/) - Centrum
- [gaiaherbs.com](https://www.gaiaherbs.com/) - Gaia Herbs (on the old page)
- [herbalife.com](https://www.herbalife.com/en-us) - Herbalife (multi-level marketing) (on the old page)
- [naturemade.com](https://www.naturemade.com/) - Nature Made (many products USP Verified) (on the old page)
- [oneaday.com](https://www.oneaday.com/) - One A Day
- [pureencapsulations.com](https://www.pureencapsulations.com/) - Pure Encapsulations
- [purityproducts.com](https://www.purityproducts.com/) - Purity Products (on the old page)
- [thorne.com](https://www.thorne.com/) - Thorne
- **Vitamin stores (commercial)**
- [amazon.com](https://www.amazon.com/s?k=usp+verified+vitamins&tag=webcentive) - Amazon: USP Verified vitamins
- [botanicchoice.com](https://www.botanicchoice.com/) - Botanic Choice (on the old page)
- [costco.com](https://www.costco.com/) - Costco
- [cvs.com](https://www.cvs.com/) - CVS
- [dailyvita.com](https://dailyvita.com/) - DailyVita (on the old page)
- [gnc.com](https://www.gnc.com/) - GNC (may block automated checks) (on the old page)
- [mothernature.com](https://mothernature.com/) - MotherNature (on the old page)
- [swansonvitamins.com](https://www.swansonvitamins.com/) - Swanson (on the old page)
- [vitacost.com](https://www.vitacost.com/) - Vitacost (on the old page)
- [vitaminshoppe.com](https://www.vitaminshoppe.com/) - The Vitamin Shoppe (may block automated checks) (on the old page)
- [vitaminworld.com](https://vitaminworld.com/) - Vitamin World (on the old page)
- [walgreens.com](https://www.walgreens.com/) - Walgreens (drugstore.com on the old page)

Number of links: 34  
[Suggest a site for this category](https://www.webcentive.com/cgi-bin/addurl.cgi?cat=vitamins)