What happens if a large-breed puppy gets too much calcium?

Too much calcium can harm a large-breed puppy’s bones, because excess calcium interferes with the absorption of other key minerals, leading to deformities, brittle fractures, and joint disease.

It can also upset the digestion, causing diarrhea, vomiting, and poor appetite, and it adds strain to the kidneys that may trigger kidney problems. Supplement only as needed, ideally after a check-up to learn the puppy’s real requirements, and keep the puppy active to support healthy growth.