Selenium can be overdosed. Just a little is needed to help with the uptake of vitamin E. Most of the time, a small bit of scrambled egg is all that is necessary. E and B1 thiamine are the 2 important vitamins to give. I prefer the inexpensive human super b complex tablets which are sometimes under $5 at Walgreens or Walln
mart sometimes. PolyVisol baby vitamins are expensive, hard to find sometimes, and you need to find the kind without iron.
I don’t like force feeding. It could cause aspiration. I prefer to mix a watery mush with chick feed, egg, water, and maybe a dot of plain yogurt. Tube feeding is something to consider.