What is the difference between calcium citrate and calcium carbonate?

[Squawkers]

I have both mentioned before, and wasn’t sure when to use one over the other.

 

[Debbie292d]

@azygous explains it in this post:

https://www.backyardchickens.com/th...-people-calcium-but-how-much-to-give.1606612/

 

[Squawkers]

@azygous explains it in this post:

https://www.backyardchickens.com/th...-people-calcium-but-how-much-to-give.1606612/

Thanks!!