Phenylalanine is one of the 20 amino acids required for life as we know it. You are exposed to many times more phenylalanine when you eat high-protein foods compared to an entire 12 pack of diet soda.
Phenylketonurics have to track their phenylalanine consumption, so there are several easy-to-use look-up tables for the amount of phenylalanine in various foods (1).
Diet soda (2) is a rounding error compared to soy, legumes, and meats. Show me a healthy diet without soy, cheese, whole grains, eggs, or legumes and I'll show you someone who's trying too hard to show me something.
Phenylketonurics have to track their phenylalanine consumption, so there are several easy-to-use look-up tables for the amount of phenylalanine in various foods (1).
Diet soda (2) is a rounding error compared to soy, legumes, and meats. Show me a healthy diet without soy, cheese, whole grains, eggs, or legumes and I'll show you someone who's trying too hard to show me something.
(1) https://www.healthaliciousness.com/articles/high-phenylalani...
(2) http://static.diabetesselfmanagement.com/pdfs/DSM0310_012.pd...