Notice all the top 10 niacin containing foods are from animal sources....
And it appears it is not just ducklings that cannot get all the niacin out of grain sources like wheat.
Just a question question about Nutritional Yeast- I see some flakes and some seasoning. Is one better than the other? I've been giving my ducklings Everland Brewer's Yeast since birth and all are showing signs of niacin deficiency. Thanks to this post, I looked at the label and Niacin isn't...