98 Top Supplements & Nutrition Companies

What to check before buying supplements online

Vitamins, protein powders, gut-health capsules and herbal blends are sold by everyone from long-established manufacturers to single-product websites launched a few months ago. In many countries, supplements reach the market without the approval process that medicines go through, so the label and the seller deserve a close look.

• Health claims: a product that promises to cure, reverse or treat a disease is a red flag. Supplements are generally not allowed to make medical claims of that kind.
• The label: look for a full ingredient list with amounts per serving, not just a "proprietary blend". Some brands use independent testing programs that check contents.
• Medicines and conditions: some ingredients interact with prescription drugs or are unsuitable during pregnancy. Ask a pharmacist or doctor first.
• Subscriptions: "free bottle" and "just pay shipping" offers often start a monthly plan. Read the order page before you enter card details.
• Guarantee conditions: money-back promises may apply only to unopened bottles, within a short window, or require you to pay return postage.

Common problems and how to avoid them

Complaints in this category usually involve repeat charges nobody expected, refunds that never arrive and a return address in another country. Countdown timers and endorsements from unnamed "doctors" are pressure tactics, not evidence. CandorRated company pages show who runs the website, how long the domain has existed, the contact details found and customer reviews, which helps when a brand is new and has little history.

Frequently asked questions

Do supplements need approval before they are sold?

Rules vary by country, but in many places they do not need the pre-market approval that medicines need. The seller is responsible for safety and labeling.

How do I stop a supplement subscription?

Cancel in writing or through your account, keep the confirmation, and contact your card issuer if charges continue.