Nattiv is active in the research community and has been published in several high-impact medical journals. While at UCSF, he was a California Institute of Regenerative Medicine (CIRM) fellowship trainee and was awarded the North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition (NASPGHAN) Fellow to Faculty Award in Pediatric IBD Research. He completed his pediatric residency at the Children’s Hospital at Montefiore, Albert Einstein College of Medicine in New York, and his fellowship at the University of California, San Francisco (UCSF). Nattiv received his undergrad degree from the University of California, Berkeley, and his medical degree (MD) from the Sackler School of Medicine in Tel Aviv, Israel. who specializes in a broad range of pediatric gastrointestinal and nutritional illnesses such as constipation, diarrhea, reflux, food allergies, poor weight gain, SIBO, IBD, and IBS. Roy Nattiv is a board-certified Pediatric Gastroenterologist in Los Angeles, California. This article was medically reviewed by Roy Nattiv, MD. The damage caused by these materials can be extensive. The injurious agents in the refluxed stomach contents (refluxate) are primarily acid and activated pepsin, a proteolytic enzyme needed to digest food in the stomach. This article has been viewed 11,232 times. Laryngopharyngeal reflux, or LPR, is the backflow of stomach contents up the esophagus and into the throat.

Laryngopharyngeal relux