If the deer aren't hammering the sprouts now then they don't want or need it. I know they will eat the leaves but don't think they are going to be any better for the deer than any other tree leaves.
LOL as a kid (mid 60s) my dad and I were at the masonic lodge hall and witnessed grackles (black bird) eating china berries and almost immediately they started wobbling around like they were drunk, some even falling down. We thought the china berries might have just been fermented.