First Time User? Enroll now.
Notice of Data Security Incident
COVID-19: Vaccine information, visitor restrictions, and additional resources | Medicaid: The program is changing and you must take steps to keep your UNC Health providers
Home > Health Library > Phenylalanine
Phenylalanine is one of the eight essential amino acids necessary for the basic functioning of human cells that leads to normal growth and development. It is found in most foods, especially those high in protein, such as meat, cheese, and milk.
Food labeling laws require products that contain phenylalanine to be labeled with a warning for people who have the inherited disorder phenylketonuria (PKU), because these people cannot safely consume phenylalanine. For example, aspartame, a common sweetener, is a nonprotein source of phenylalanine. Aspartame is used in many diet soda pops and sugar-free foods.
Current as of: December 17, 2020
Author: Healthwise Staff
Medical Review:Adam Husney MD - Family Medicine & John Pope MD - Pediatrics & Kathleen Romito MD - Family Medicine & Chuck Norlin MD - Pediatrics
To learn more about Healthwise, visit Healthwise.org.
© 1995-2021 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.