Affiliate Disclosure
Last updated: 2026-09-16
Some pages on this site contain affiliate links. If you click one and make a purchase, we may earn a small commission from the retailer. This costs you nothing extra — the price you pay is the same as if you had reached the retailer directly.
What this does not change
- Commission never influences which products we mention, or how we describe them.
- We do not accept payment in exchange for a positive recommendation, a ranking position, or a review.
- Our feeding calculations and all formula values are independent of any commercial relationship. They come from published NRC and WSAVA references.
- If we cannot say something useful and honest about a product, we do not include it.
Why the site has affiliate links at all
The calculator and every page on this site are free to use. Advertising and affiliate commissions are how the site covers its costs and stays free, and they are the reason the tool has no paywall and no account requirement.
Which partners
Affiliate links on this site may point to the Amazon Associates programme, which pays a commission on qualifying purchases. Links to Amazon are clearly identifiable as Amazon links and are not disguised or shortened. Where a page contains affiliate links, that is disclosed on the page itself, not only here.
Product categories we do not recommend
We do not recommend veterinary medicines, prescription diets, supplements, or any product that treats or claims to treat a medical condition. Those decisions belong with your veterinarian.
Contact
Questions about this disclosure: contact@petportioncalc.com