This systematic review looked at the connection between high levels of phenylalanine in the blood and serious health conditions like obesity, type 2 diabetes, and cancer. The study combined epidemiological data with molecular research to understand these links. It did not include new patient data or test treatments directly.
The review suggests that elevated phenylalanine may act as a risk factor for these diseases. Researchers propose that high levels might block insulin signals and damage mitochondria, leading to inflammation and insulin resistance. These biological changes could eventually result in fatty liver and other metabolic problems.
Despite these findings, the evidence comes from associations and lab studies rather than intervention trials. The authors note that moving toward personalized treatments is an ongoing challenge. Readers should understand that while the links are significant, this report summarizes what is known without establishing direct cause and effect in people.