Objects are to provide an additive for a feed which can improve growth performance and meat quality of livestock, and can improve palatability of the feed, a feed and a method for preparing the feed, and the objects can be solved by an additive for a feed which comprises at least one or two or more of a polyphenol derived from EFB, α-tocopherol derived from EFB and xyloses derived from EFB, a feed which comprises an additive for a feed being added to a formulating material for a feed in the range of 0.05 to 20% by weight with a dry basis, and a method for preparing the feed.
