Disclosures & Policies

Affiliate Disclosure

EvidenceFirst Health is reader-supported. When you buy a product through links on our site, we may earn an affiliate commission at no additional cost to you.

As an Amazon Associate, we earn from qualifying purchases.

We also participate in affiliate programs with other retailers and supplement brands. When we link to a product, that link may be an affiliate link, meaning we receive a small commission if you click through and make a purchase. The price you pay is exactly the same whether you use our link or not. Affiliate commissions are paid out of the retailer's margin.

How we keep this honest:

• Affiliate commissions never influence our rankings or scores.
• Affiliate links are disclosed openly. Every product link is a paid link.
• We never recommend products we wouldn't recommend if there were no affiliate program.

If you'd prefer not to use affiliate links, you can purchase products directly from the brand's website. Most of our reviews link to both the brand site and Amazon.

FDA Disclaimer

These statements have not been evaluated by the Food and Drug Administration. The dietary supplements reviewed on this site are not intended to diagnose, treat, cure, or prevent any disease.

Probiotics and other dietary supplements are regulated by the FDA under the Dietary Supplement Health and Education Act (DSHEA) of 1994. Unlike pharmaceutical drugs, dietary supplements are not subject to FDA pre-market approval and may be sold without proof of efficacy or safety.

Our reviews evaluate publicly available product information, ingredient labels, published peer-reviewed research, and consumer-side experience. Any clinical claims discussed are those of the published studies cited, not endorsements of treatment outcomes.

Individual results vary. The information on this site is not a substitute for the advice of a licensed healthcare provider.

Medical Disclaimer

The content on EvidenceFirst Health is for informational and educational purposes only. It is not intended as medical advice and should not be used as a substitute for professional medical guidance, diagnosis, or treatment.

Always seek the advice of your physician, OB-GYN, registered dietitian, or other qualified healthcare provider with any questions you may have regarding a medical condition or before starting any new supplement, especially if you are:

• Pregnant or breastfeeding
• Taking prescription medications
• Managing a chronic condition
• Recovering from surgery or illness
• Under the age of 18

The information on this site is based on publicly available research, clinical literature, and reviewer experience. It reflects our best understanding at the time of publication but is not a guarantee of any specific outcome.

If you experience any adverse reaction to a supplement or product reviewed on this site, discontinue use immediately and consult a healthcare provider. We are not responsible for outcomes related to consumer use of products covered in our reviews.

Editorial Standards

Our editorial standards:

• No paid placements. We do not accept payment from brands for inclusion in our rankings, "Best Of" lists, or product reviews.
• No PR boxes. We purchase every product we test ourselves, at retail.
• No editorial control. Brands have no input into what we write about their products. We do not share drafts with brands before publishing.
• Negative reviews welcome. If a product fails our criteria, we say so, even when the brand has strong industry positioning.

Read our full methodology for the scoring rubric and review process applied to every product.