The number of redundant content items provided to a user by a multi-source feed reader is automatically reduced. Each content item obtained by the multi-source feed reader from each feed to which the users subscribes is analyzed prior to being made available to the user. More specifically, the content items are analyzed to determine whether they are based on source content from different feeds. Each content item is searched for attributes indicating a source on which it is based. Where it is determined that a content item from a first feed is based on source content from a second feed, it is further determined whether the user subscribes to the second feed which the source content is from. If so, the specific received content item from the first feed is not provided to the user.