Consider what worked for me.
Quite many years ago, I got chickens from the butcher shop. (brought them home live to keep, not eat. It seemed that they would catch some cooties there and needed help. Similar to dogs catching Kennel Cough.
I figured I try what I had on hand, as good nutrition would possibly help.
I took a bag of Ramen noodles, crushed them before cooking. I used slightly less water to make a thicker entree. Into that, I took 1/2 of a One-A-Day people vitamin without iron, and crushed to powder, and added. The chickens wolfed it down like crazy. That helped my chickens, and when their symptoms cleared up, I discontinued doing it. (2 or 3 days)

You can do something similar with the Calcium Citrate

All my chickens just LUV noodles/pasta.