Lita has just eaten a lot of soy, which contains tryptophan. What should she try to consume less of to potentially increase tryptophan's entry to the brain?
A) Phenylalanine
B) Glucose
C) Insulin
D) Thiamine

Question

Quizplus · Accepted Answer

Tryptophan competes with other large neutral amino acids like phenylalanine for transport across the blood-brain barrier. Consuming less phenylalanine can potentially increase tryptophan's entry into the brain.

Lita Has Just Eaten a Lot of Soy, Which Contains