Grain Free Seafood Select Wet Dog Food

⚪ Transparency signal: 'natural flavor' in pet food is most often animal digest — hydrolysed animal tissue sprayed on the outside of the kibble to make it palatable. It is not required to name the species. The concern is not toxicity, it is that a bag can list an unnamed animal product and disclose nothing about what it was.

Menadione is synthetic vitamin K3. The mechanism of concern is well established: it generates reactive oxygen species and depletes glutathione, causing oxidative stress that can damage red blood cells and liver cells — the route to hemolytic anemia. The FDA has banned it from over-the-counter human supplements, and doses as low as 10 mg have been linked to hemolytic anemia in susceptible people. ⚖️ In fairness: the FDA does permit it in animal feed, and over 50+ years of use there are no published reports of nutritional toxicity in dogs at pet-food inclusion levels — the studies showing harm used doses orders of magnitude higher, often injected or force-fed. Worth knowing too that neither K1 nor K2 is approved for pet food, so a manufacturer wanting to supplement vitamin K has no alternative. AAFCO does recognise menadione sodium bisulfite complex as a vitamin K source while noting that natural forms are preferred where available — which is roughly where the evidence sits. It's also worth knowing dogs synthesise vitamin K in the gut, so supplementation is rarely necessary in the first place; its presence often says more about the formulation being cheap than about the dog needing K. Our position: the mechanism and the human ban justify preferring foods without it, especially since dogs on a whole-food diet get K1 from plants and K2 from animal sources. We don't claim it has been shown to harm dogs at label doses, because it hasn't.