Vitamin D for a Sick Cat; Too Much May Be Toxic-Proceed With Caution

The vet recommended a vitamin D blood test (last week during the scan) and the result came back that the level is very low. She recommends a supplement. PROBLEMS: too much and it's toxic. Giving too much of a supplement and causing toxicity would be easy since cats do not need that much vitamin D to increase their levels unless they were not eating or absorbing nutrients. In Katharine's case, she has IBD so her body was not absorbing nutrients effectively. She also was not eating well and not at all a few days prior to the test (although we were hand feeding her.) So, her level may have been temporarily low anyway. We will try it for a few days-next week as the vet needs to order it. I will give very little and we will retest her level in a month. She's eating better on her own so I'm expecting the level to improve.

Here's an article about vitamin D and cats.