Do No Harm - S1-E20
Continuity mistake: When Claire is talking to Michael and Sawyer at the start, Jin is working on the raft but doesn't have his handcuff on in this scene. (00:04:20)
Do No Harm - S1-E20
Continuity mistake: When Jack approaches Shannon and Sayid on the beach, the amount of footprints in the sand is constantly changing. (00:38:30)
Do No Harm - S1-E20
Continuity mistake: In the scene where Michael and Sawyer are eating some fish on the beach (with Jin working on the raft) a pregnant Claire has a quick conversation with them and heads into the forest. About 20 seconds later Kate runs into Michael and Sawyer, and runs into the forest at full speed. Kate later finds Claire in labour, who somehow had gotten further out than Kate, even though Kate was running at high speed in the woods. There is no way a pregnant girl could have beat Kate to that position, even considering how long it took Jin to find them from the beach.
Answer: He was eating a peice of an orange with the skin still on.
XIII