I hope that I have chosen the correct place in the forum to put this if not then my apologies.
I wanted to share some information with you all and I am not trying to make anyone look bad or anything in that nature, because all that they are doing is repeating what has commonly been believed for so long.
Vitamin A and beta carotene are not the same thing. They do not do the same thing in the body, yes some beta carotene can be converted to vitamin A in some animal bodies it does not happen in all and there are quite a number of reasons that it wouldn't convert. Liver problems, low thyroid, lack of supporting nutrients, and so on. Even when it is converted the conversion rate is so low that it would take enormous amounts of beta carotene to make just a small amount of vitamin A. If that wasn't enough beta carotene is fat soluble meaning it requires fat for it to be absorbed. If you pierce a beta carotene soft gel you will find it is oily. So without some real butter on that sweet potato then you aren't getting much out of the beta carotene in it.
Here is a pretty good article on the subject.
https://www.dsm.com/markets/anh/en_US/Compendium/companion_animals/vitamin_A.html
I am for the moment going to with hold the source of this the following information but I promise that I will share it to you all in due time.
Dietary carotenoid that serves as a vitamin A precursor or pigment in some species. Found in dark green, yellow, and orange fruits and vegetables. Mammalian carnivores cannot utilize beta-carotene and the same may hold true for birds.
Please do not rely on fruits and vegetables as the sole source of vitamin A in your parrots/ birds diets. Vitamin A is vitally important to all body processes, it is in every cell inside the body. If you need more info on vitamin A and what it does please do not hesitate to let me know and I will gather up some information for you.
Oh and one last thing... please don't kill the messenger
I wanted to share some information with you all and I am not trying to make anyone look bad or anything in that nature, because all that they are doing is repeating what has commonly been believed for so long.
Vitamin A and beta carotene are not the same thing. They do not do the same thing in the body, yes some beta carotene can be converted to vitamin A in some animal bodies it does not happen in all and there are quite a number of reasons that it wouldn't convert. Liver problems, low thyroid, lack of supporting nutrients, and so on. Even when it is converted the conversion rate is so low that it would take enormous amounts of beta carotene to make just a small amount of vitamin A. If that wasn't enough beta carotene is fat soluble meaning it requires fat for it to be absorbed. If you pierce a beta carotene soft gel you will find it is oily. So without some real butter on that sweet potato then you aren't getting much out of the beta carotene in it.
Here is a pretty good article on the subject.
https://www.dsm.com/markets/anh/en_US/Compendium/companion_animals/vitamin_A.html
I am for the moment going to with hold the source of this the following information but I promise that I will share it to you all in due time.

Dietary carotenoid that serves as a vitamin A precursor or pigment in some species. Found in dark green, yellow, and orange fruits and vegetables. Mammalian carnivores cannot utilize beta-carotene and the same may hold true for birds.
Please do not rely on fruits and vegetables as the sole source of vitamin A in your parrots/ birds diets. Vitamin A is vitally important to all body processes, it is in every cell inside the body. If you need more info on vitamin A and what it does please do not hesitate to let me know and I will gather up some information for you.
Oh and one last thing... please don't kill the messenger
