Based on the transcript, Xander mainly ate fish (he caught several), and coconuts. He also mentions eating lobster at the end, obtained with the help of local fishermen. He planned to try and catch a pig, but that didn't appear to happen in the timeframe of the video.
This video documents Xander Budnick's 7-day solo survival challenge on a remote, deserted island in the Pacific Ocean. He attempts to survive with no food, water, shelter, or fire starter, relying solely on his skills and limited tools to find resources and overcome the island's challenges.