The first one is called Bird Bene-Bac. It offers beneficial intesinal flora to balance the intestinal tract to improve digestion. My birds absolutely love it, Zoe would eat it like candy if I let her. Not too spendy.
Bird Bene-Bac | Pet Solutions
The other product is AVIx Sunshine Factor Organic Dende Oil
AVIx Sunshine Factor Red Palm Oil Bird Vitamin Supplement.
My Avian vet suggested both of these products for all my birds to improve immune system, appetite, feather and skin health. They are very popular with the Mini Macaws. She told me to slightly warm the Sunshine Factor and mix it with something they like. Mine love a small piece of Whole Wheat toast so I spread it on the toast for their breakfast treat. umm umm
I also like the idea of the herb salad mentioned in someones thread. Will check it out, especially since my fids only like cooked foods and and Zupreem pellets.