Feeding Dane puppies requires a diet with low calcium levels, minimal added supplements and a calcium / phosphorus ratio as close to 1 / 1 as possible. (feedingmydogbreed.com)
Many published studies show that low calcium intake appears to be associated with low bone mass, rapid bone loss, and high fracture rates. (dietgrail.com)
Rabbit hay with low calcium levels may decrease the likelihood of urinary tract problems in your pet. (petco.com)