A California teen who was nearly killed in a hit-and-run accident last year has made an amazing recovery, due in part to a therapy involving fish oil, his parents claim.

Grant Virgin, 17, suffered severe head, spine and internal injuries after he was struck by a car near his familys home in Palm Desert, Calif., while taking a walk. The teen was flown to a hospital with several skull fractures and was bleeding throughout his brain, according to CNN.

Read More: Fish Oil Saved This Boys Brain After an Accident