Complex sentence: Two years later, the ingredient in question was found to be harmless and was removed from the list of banned substances, but this change came too late for Van Hulst: she was not able to participate in the 1996 Summer Olympics in Atlanta.
Split into simpler sentences: Two years later, the ingredient in question was found to be harmless and was removed from the list of banned substances, but this change came too late for Van Hulst. She was not able to participate in the 1996 Summer Olympics in Atlanta.