What It Does
Controls blood clotting and supports bone metabolism. Your pet's gut bacteria produce some vitamin K, but dietary sources are important for growing puppies and kittens whose gut flora isn't fully established yet.
What You’ll Notice
Deficiency is rare in healthy pets but shows as excessive bleeding from minor cuts, bruising, or blood in urine/stool. Pets who've ingested rat poison (which blocks vitamin K) need emergency treatment.
Normal clotting
Healthy bones
Excessive bleeding
Easy bruising
Sources & Notes
Leafy greens, liver, gut bacteria. Critical to know: rat poison works by blocking vitamin K — if your pet ingests any, seek immediate veterinary care.