Calcium Balance for Bernese Mountain Dog Puppy

A 14-week Bernese Mountain Dog — you're right to be thinking about calcium balance already. Large and giant breeds have a narrow window where getting this wrong causes real skeletal problems. Are you currently feeding a food specifically labelled for large breed puppies, or something more general?

Not worried, but yes — worth switching soon. General puppy foods often have higher calcium and phosphorus levels than a Berner needs. With giant breeds, excess calcium is actually more dangerous than too little, because it disrupts how the bones mineralise during that rapid growth phase. The goal is a controlled, steady ratio — not high, not supplemented. Are you planning to stick with dry kibble, or are you considering raw or wet food?

Please don't add calcium supplements if you're feeding a complete kibble. This is one of the most common mistakes with large breed puppies and it genuinely causes harm — conditions like osteochondrosis and HOD are linked directly to calcium oversupplementation in fast-growing breeds. The right complete food handles the ratio for you, no extras needed. What matters is choosing one formulated specifically for large or giant breed puppies.

For a 14-week Bernese, I'd go with Royal Canin Maxi Puppy. It's formulated for large breed puppies up to 15 months with a precise calcium-to-phosphorus ratio designed for controlled bone development. The kibble size also suits a big puppy jaw without encouraging gulping, which matters for deep-chested breeds like Berners who have bloat risk. It's widely available on Amazon UK in 3kg and 10kg bags — I'd start with the 3kg to confirm he takes to it well, then move to the larger bag.

For a Bernese, not before 18 months — some people wait until 24 months. They're slow to mature skeletally, and adult food doesn't provide the same growth support. Royal Canin actually does a Maxi Adult that you can transition to gradually when the time comes. But honestly, don't rush it — staying on the right puppy food for longer is far safer than switching early.