I know this sounds crazy but it is possible that it works. The xCures team (I am a consultant to them) are working on a similar project for Pancreatic cancer. They are running a clinical trial (https://clinicaltrials.gov/ct2/show/NCT05078775) of a specially designed food that removes a few amino acids. Too early to tell how well it works but I hear interesting things. https://faeththerapeutics.com/ created the program.