The World Health Organization recommends that vitamin K levels of more than 6.5 percent should be considered normal for most dogs.
The recommended amount is 10 to 25 micrograms per kilogram of body weight.
The American Veterinary Medical Association (AVMA) lists the best kibble as the Chinese cat food Beneful, which contains 20.5 microgram per kilowatt-hour.
But in China, you can buy supplements made from various species of animals, including cats, mice, dogs, rabbits and hamsters.
If you’re looking for the best food for your dog, we suggest buying the brand that is most closely related to your dog’s species.
We’ve looked at several dog-friendly kibble brands for dogs, but the most popular dog-food brands have all been formulated for cats, so you might be tempted to choose the brand with the best vitamin K content.
The best dog kibble products: