Vitamin D?

[adnan]

hi,
how much vitamin D for parrots in international unit (IU) is ok daily or weekly?

 

[adnan]

Also.. which is best powder, liquid or oil??

 

[MonicaMc]

What's recommended as best is minimum 30 minutes a day outside or about 2-3 hours outside per week with direct/indirect light.

After that, it's hard to say for sure... but some bird diets do include vitamin D as a supplement, so in theory, they should be "ok" without extra supplementation.