Virbac Calci D is a calcium and vitamin supplement powder for dogs, formulated to support bone development and growth. It's particularly suited to growing, racing, and breeding greyhounds fed on meat-based or dry food diets.

The supplement delivers calcium alongside Vitamins A and D3, targeting the nutritional gaps common in high-protein meat diets that tend to be calcium-poor and phosphorus-heavy. Available in 850g and 4kg sizes, it's intended to be added to the dog's existing diet rather than replace it. Virbac positions it for dogs with elevated calcium demands — growing pups, active working dogs, and breeding bitches.

Calci D is chosen by greyhound and working dog owners who feed raw or meat-heavy diets and want a straightforward way to correct the calcium-to-phosphorus ratio without switching to a commercial complete food.